How far does harmonic balancer go on sbc. I did mount my pulleys and they lined up great.
How far does harmonic balancer go on sbc Multiply by Pi (3. the Assault Racing one is by far the The harmonic balancer I'm installing has about 1 to 1. So, does anyone know what size balancer stock chevy 350s come Harmonic Balancer cover Many SBC had 8" balancers. But they all need to go on until they stop "SOLID" How far dies a harmonic balancer go on? Updated: 9/21/2023. Auto Repair » DIY » Symptoms of a Bad Harmonic Balancer. I'm having a heck of a time trying to timing the OK, I went out and looked at my 305 balancer. Just about an 1/8th of an inch of balancer showing on the timing pointer. On a SBC, the crank is tapered and an interference fit. The distance from the back edge of the balancer to the timing cover is . The harmonic balancer is seated all the way init won't go in any further. 175 posts · Joined 2009 Add to quote; Only show this user #1 · Jan 28, 2012. It has a choppy idle, and a noticeable power loss. If the balancer is on far enough, then why not try to use the bolt to Every SBC has the crank keyway pointing exactly at the #1 crank journal, regardless of which balacer you choose. I'm building an early chevy 350, 2pc rear main seal. Hey Pulling the balancer and crank hub off sbc 350. If you want to How do degree a harmonic balancer? General engine tech -- Drag Racing to Circle Track. How to tap stripped Improper installation of a harmonic balancer can also cause it to fail. ” The basic purpose The 8" balancer is an upgrade that should help engine life. How far in should the harmonic balancer bolt be screwed in? With my current engine build I have the big pulley on the balancer, the harmonic balancer, and then the bolt, so there is not much threads grabbing the crank. This would later be debunked by taking power away to spin the rotating mass. When you really think about it, it's baffling that the harmonic balancer is sticking that far out when The Harmonic Balancer issue!!!! this is one item on a engine that has a many opinions and false facts. I bought the balancer installation tool and did some research including watching some videos online before installing it. Balancer woes Chevy used 3 different timing pointer locations,pre '69 models TDC was 2 degrees to the left of the key centerline,'69 and later have the TDC mark 10 degrees to the left of the keyway centerline '84 and later is at A forged-crank 283 had little more than a harmonic balancer hub, while those 283s equipped with a nodular iron crank had a real 63/4-inch (not 6-inch) balancer. 1974 block, custom harmonic balancer. About how hot does the harmonic balancer get? Thanks You can use a balancer from any SBC except a 400, as long as the diameters are the same to clear your timing comb. 4K views 3 replies 4 participants last post by GreenF350 Apr 4, 2012. Am I being paranoid, or does that sound correct? Thanks in advance! 70 Chevelle 385 small block, 11. Jump to Latest 5. If you think it's not on far enough because the crank is recessed in the bore of the harmonic damper, that is the way it is supposed to be. Do you have a harmonic balancer (thrust bearing type) installation tool? The type that threads into the bolt threads in the crankshaft? If so, cut yourself a piece of 1 1/4" ID pipe about 2 1/2" long to work as a spacer. The basics of GM engine and the balancer. Now I want to put some white paint in those little timing marks so that they stand out and look nice. The bolt is commonly tightened until it cannot be tightened anymore. I am having the opposite problem of what you have suggested, my balancer (pulley) is sticking out TOO far as if it is not fully seated but believe me it is fully seated on that timing gear, my 1/2" impact doesnt lie. Lined That will tell you how fat the balancer can go in. 002" smaller than the snout on the crank for a slight interference fit so grind the nubs off and bolt the new pulley on Not the So we tore off the distributor, driver side valve cover and cylinder one spark plug. I took the balancer off and measured the crank and balancer depth. It's an 010 block. For example, some GM cars utilize a V6 that was a redesign from a larger V8. This guide will help you spot Unless you have a damper that came from a SBC engine that uses a reluctor between the crank timing gear and the damper, there should be no way for the damper to go on so far that it rubs the timing cover. how do I know when its installed all the way? If you want to make sure just do some quick measuring. It does not point at the #1 plug, rather more towards the midline of the engine past he actual piston top. SBC 350. I did mount my pulleys and they lined up great. The vehicle was built in Dec64 so a replacement in Feb65 seems right. 0ish compression 200cc alluminum heads, 64cc chamber Comp xr300hr cam, 300/306 duration, . You can use a balancer from any SBC except a 400, The harmonic balancer slides onto the front of the crankshaft which has a keyway on it to keep it from slipping and a bolt and wide washer holds it in place. These Dampers feature an [QUOTE=The Plastic Lizard;1582625832]how close to the timing cover should the flywheel of the harmonic balancer be? conversly, how far on the crankshaft? 0 degrees/ TDC, my rotor either points just before # 3 cylinder or just past #1 cylinder. Jump to Latest As far install, it’s available for purchase too for $15. Not only is it an ideal replacement for your original one, but its durability is unmatched. My questions are: C5 Tech - LS1 Harmonic Balancer recommendations - I'm putting this in the C5 Tech forum for input from C5 owners and enthusiasts. So I might replace it. 141) Went to put everything back on after painting everything and now my pulleys aren't lining up. If the engine's in the car you can bend a paper clip or a small piece of wire at a 45 degree angle and slide it in the hole to see if there's a gap. When I installed my SBC 400 I found that I needed the larger bellhousing and the 11 inch weighted 168 tooth flywheel that was externally balanced. A simple way to think of the harmonic balancer is like a massive stress reliever. Harmonic Balancer Doesnt Want to Go On! #1 · Apr 29, 2004. It's "press fit". 562/. Had the engine rebuilt and today I installed the harmonic balancer. Motor isnt in the car yet though a/fxcomet, May 25, 2004. As far as the SBC Harmonic Balancer Bolt info. 5-2 inches between the timing cover and the balancer body. If this happens, the crankshaft may develop cracks and ultimately fail. from near seattle wa. Use a puller to remove it. I picked the engine up and it had no pulleys. Use at least a 2 lb. The distance from the face of the balancer to the snout of the crank is 1. (down the front) and go drive it after you reset it,if it has spun once it will do it again . 580 lift Dart airgap intake, Small block Chevy. All-in-all it is closer to #1 than ID pull the balancer and see if the key is not broke or damaged-allowing the balancer to spin on the crank-highly unlikely because BALACER is also bolted to the crank-I bet that outer ring slipped and its way off now-get the dist rotor pointed to # one on the dist cap-if the balancers TDC mark is way off the timing pointer- The harmonic balancer is a good place to start when trying to identify a small block Chevy engine. No visible timing marks on original harmonic balancer. Check out this video to learn how to replace the harmonic balancer on your 99-13 Chevy Silverado. 125" thick. Come join the discussion about performance, On a sbc does the harmonic balancer bolt go on after the pully and does the thick washer also hold the pully on along with the 3 other bolts,just wondering -a fellow rebuilt this engine and had the balancer on the crank shaft ,he told me I would have to get a new bolt ,I assumed the bolt would go on before the pully,but the big thick washer is The stock harmonic balancer on my 454 is sooo tight it I thought I was going to break my breaker bar when using a puller to remove it. The harmonic balancer — also known as the harmonic dampener or crankshaft dampener — is responsible for stabilizing your engine's crankshaft by absorbing shocks and vibration caused by the Timing cover does not leak nor the seal, new balancer should keep that in good shape. As far as the depth of the hole to be Over time, the crankshaft harmonic balancer can go bad from constant exposure to chemicals, the elements, or from old age. I've heard about internal balance and external balance crankshafts for the small blocks, but how do you tell the difference between the two. This can cause The final step to installing the harmonic balancer is the one that is most often overlooked. What size is the crank bolt on a 350? The crank bolts for a Chevy 350 engine will be 5/8 inches in length. Until it stops. RICH CIRCLE (R) 815 712 8738----- BUY,SELL, or TRADE dont move the motor too far from TDC and let the valve drop into the cylinder. It counters certain vibrational frequencies in cars. You have an ancient relic from the early 265 or I recently ordered a SBC harmonic balancer for my 65 327 Corvette crate engine. While it was at the machine shop the builder balanced it along with the rotating assembly. It How to install the timing chain cover seal, how to install the harmonic balancer, tools used, hold back tip, blower pulley alignment bushing, torque specs fo Post: Installing sbc harmonic balancer ? (Topic#309292) Mja1975 Contributor Posts: 318 Age: 50 Loc: San Jose , Ca Reg: 06-28-12. The '80 350 balancer layin' in my garage is 8"diameter Looks like you got the wrong Torque: how far you take the wall with you. Thanks :cheers: So far without removing the crank and a pistons, the only numbers I have found are on the harmonic balancer is #30 stamped on the top of each piston and GM# 3896966, 302 73, 2222H on the balancer. Heli-coil is easy. I am too far along in this project to possibly strip the crank out that's just scary. When I looked in the engine bay I saw the damper wobble but worse. 5. If it were I, I would install a 8 inch balancer from a 350 chevy heavy duty application with a timing mark at the 2 o`clock location. ” And the overall name of “harmonic balancer” is widely used when the correct term is “harmonic damper. The next step is to detach every accessory A good combination of suggestions so far. That benefit is tiny. Here's whats getting me The balancer that's on the car now measures 6. Here are a few sizes and what they fit, from the SBC Interchange manual: 6 ¾ x 1 3/16 350 6 ¾ x 1 11/16 267, 305 8 x 1 ½ 350 The 305 "thick" balancers have the timing mark located differently on the balancer, so the timing cover/tab must match to use that balancer. Then move the crankshaft bolt backwards and Looks like I might have finally tracked down one of the vibrations on the '62 Suburban I bought--seems there's no harmonic balancer bolt! the bottom pully looks like it's wobbling a bit, and upon closer inspection, I discovered there's no bolt in there. 75" X 1. mine wouldnt go all the way on and after 5 tries i plasti gaged it and it was on as far as it could go cause the plastic was like 1/4" wide! small block Removing and installing a harmonic balancer on your Chevy smallblock with the correct toolsPuller Kit https://amzn. It's cracked and questionable. Leading up to the project, I did weeks, if not months of reading, including this forum and several different websites. So what does a harmonic balancer do? The primary purpose of the balancer is to absorb vibrations applied to the engine’s crankshaft. Newman434 Discussion starter. Study now. Yes, a harmonic balancer or harmonic damper can go bad and cause a Step 1. 0. The vids show a threaded hole in the crank and mine does not have a threaded hole. Once the big washer is seated against the balancer and crank you should be good to go if its the same as your old balancer. So we tore off the distributor, driver side valve cover and cylinder one spark plug. The timing tab might have been bent and is now able to contact the damper. The harmonic damper will only go on until it touches the crank sprocket. I would go with a new balancer and wouldn't cheap out on it either. 75" across and just shy of 1. e) the balancer should be flush up against the crank and not further back. N. No that should get my How far does it go or how much torc Its a 2004 lesabre. My copy of the Vizard "Max-Pefformance SBC" book is the original printing from 1999, has a Guys, I am installing my new harmonic balancer on 2000TJ 4. People do this all the time, in spite of all the warnings to the contrary. I've made the half-moon key fit into the slot OK, but it soon hits a tight shoulder as it goes on. Right now the balancer I've got is 8 inches. Joined SBC Harmonic Balancer Question My balancer has some rubber kinda hanging out. If the rubber layer in the harmonic balancer dries or wears out, it can cause the I hope this helps! I use 2 of the bolts in the balancer and a pry bar to hold it in place while cranking down on the balancer bolt. You will also have to go out and buy a harmonic balancer puller (a device used for safely removing a harmonic balancer without damaging other components in the car). GO. User Info. Note: You can also read what to do after replacing crankshaft sensor. 5 millimeters gap between it and the seal, but the pulley is not quite even with the pulley on the alternator when I use a straight edge to check. V-8 Engine Rebuild SBC #7 Harmonic Balancer Sleeve Install is the ninth video in a series on the full rebuild of the original 350 Chevrolet engine in my 197 SB-Chevy, 7/16''-20 x 2-1/4'' SBC Balancer Bolt Harmonic Chevy 280 305 350 383 Small Block Damper Grade 8 Material Heat-Treated For Strength Hex Prevents Socket Slippage Accurate and Uniform Torque Black When you go to set it- Find TDC=compression stroke, line up the balancer roughly between the 3rd/4th notch up^ =a lil farther than the pic,and align your rotor pointing right at your # 1 terminal in the cap. (non-SFI). 75" diameter, 1. in. Even this is somewhat confusing as I have seen this # 3896966 balancer listed for use on early 67 SBC 302's (internally balanced motors) and for use on SBC 400's In my effort to get my 350 to run smoothly I am hunting for sources of vibration, one I am eyeballing is the balancer/harmonic damper. This makes me think, that you have a newer block, with a plastic timing How do i know how far the harmonic balancer needs to go on the crank on a small block chevy 350. It don`t matter where the timing mark is, as long as the balancer is correctly matched to it. See answer (1) Best Answer. S. 3399 posts · Joined 2008 Add to quote; My question is, can I put a 6" balancer on my 350 cu. VIDEOS INSIDE. Should i get an internal or external balanced, and should I get the 6 or the 8 inch? That should be a internal balanced engine, as far as 6 or 8 inch what are the plans for Without the harmonic balancer there is a high risk your crankshaft would crack or a serpentine belt would be thrown off track. Typically the piston's momentum was cancelled out with the momentum of other pistons, but this was lost with the cleaving of a piston pair. Putting the harmonic balancer back on. Harmonic Balancer installed depth SBC. I know this is an old post, but I thought someone would like this slick trick for tightening the harmonic balancer bolt. 340" (the point where it would make first contact). Using An Impact Gun. 70" thick. Enter the number of inches for the diameter of your harmonic balancer. make sure to hold it where it is at with a wrench and use my other wrench turning the installer and getting the balancer to go on. My timing chain cover timing mark tab is for 6. (i. I had the same issue on my L76-powered G8. I have the same problem. When I tighten down the Harmonic balancer, it goes to about 1/4 inch from flush with the end of the crankshaft. Using a mallet to beat the balancer onto the crank snout we’ve all been there, and 11-11-07 06:44 PM - Post# 1293873 In response to 55chevy383 I have one of these on my 283. 25" thick I also checked at the local parts store and other inter web sites all stock 327 balancer are that. I have a 1-peice rear main GM 350 crate engine that is going in my 56 Chevy. It Re: Harmonic balancer. Pull Off The Cogged Belts. 2 years ago at car craft nationals in Minneapolis we were staying at a hotel with a nice big parkade that was covered in black by the time we left. Jack the vehicle high enough for you to access the harmonic balancer (connected to the crankshafts at the motor’s front). Step 2. The exact price depends on several factors, including the materials the part is made of and the specific make, model, and year of the vehicle. I went to hi-lo to order the timing tape, and they asked me what size. I am not sure what is These Pro/Street Small Block Chevy harmonic dampers by Pro Race Performance Products have been machined to tolerances far exceeding those used by OEM’s. When I put a tape on my balancer I found that the outer ring had slipped and my mark was off by nearly 5 degrees! And, apparently, this is fairly common. HTH How does the harmonic balancer mount to the crank on the 283? Just it just get "Pounded" on? Will it stay on? What size balancer do I need? Should I get a Harmonic Damper. 376 posts · Joined 2005 Add to quote; Only show this user What Is A Harmonic Balancer And What Does It Do? A harmonic balancer is an essential component of an engine, which helps to prevent damage to the engine’s bearings and crankshaft. That's the way to go. The earliest versions aligned the TDC mark with the woodruff key in the Harmonic Balancer gap? Thanks Rotorbolt. As soon as you notice any of the symptoms that your crankshaft harmonic balancer is going bad, it is important to have a professional mechanic replace the damaged crankshaft Less common is a balancer with a TDC line that is 45" CCW from the crank keyway. Reactions: 427L88. The end of the damper snout bottoms against the crank timing gear, so it can't go on too far unless you happened to grab a short snout How far should the balancer go on? There is a gap of about a half inch between the back of the balancer and the timing cover. It looked to me like the balancer still had a long way to go so I kept turning - it was already bottomed. hammer and be sure to strike in the middle of the balancer, not off center. 13 posts · Joined 2012 Add to quote; Only show this user #1 · Apr 4, 2012. 350s have the big balancer. In the case of the LT1, smaller is actually better. Not smart. I go to order one from summit and it says the stock balancer is 6. Reply Like 07-05-2005 | 03:19 Swapping out a harmonic balancer when needed is important to avoid engine damage and guarantee peak performance. Jump to Latest Carefull not to go to far: insert the coil New threads. john68. I seen vids on youtube and all the vids I seen used a pulling tool to remove and reinstall but mine doesnt look like it is set up like that. The size can tell you a lot and it’s usually easy to see w The harmonic balancer or vibrational dampener is one of your engine’s moving parts and is vital in keeping everything running smoothly. The brand of puller is NAPA ~ but I really think that most will get the job done. Good as new: Save Share Reply Quote Like. Very common on late 70s engines like 305s, most commonly with 6-3/4" balancers (often called 7" balancers) and the timing tab that matches it can be seen by looking straight down behind the water pump and is welded directly to the face of the timing chain cover. They will cost you around $25 or so. Jump to Latest 8. For this week’s Thursday Tech Tips we go back to our friends at BoxWrench videos for a look at how to properly install a harmonic balancer. Jack Your Car. It buffers and I have a 1964 chevy 283 with the press on balancer. That's why the bolt's there I bet. When you go to install it, the maintanence manual says to "heat up the harmonic balancer by putting it in hot water for 15 minutes or so (to expand it) then immediately remove it from the water, align it on the It is done with the exception of a few little things and the harmonic balancer. Chevrolet used at least three different TDC marks on the harmonic balancer for the small block Chevy over the course of the engine’s long life span. DO NOT use a larger bolt!!!! All that does, is permanently fornicate your crank. All the block, head, manifolds numbers and dates match a Feb65 car. Does anyone know what the bolt should be torqued to that holds the harmonic balancer on? What about the bolts for the crankshaft pulley? I have a SBC 350 and am putting on aluminum serpentine pulleys. I may be able to press the balancer on Stock 350 Harmonic Balancer Size?? I have a stock '74 350 with a stock bottom end, and I want to get the timing more accurately adjusted, but I have the stock harmonic balancer w/ only the mark on it for TDC. So I painted my harmonic balancer black to go with my engine color scheme. You mentioned that the timing chain was thicker. 1A Auto makes it easy with this step by step guide. The old messed up balancer will slide right in easily, the new one has alot of resistance after about going halfway in. I am wondering how far does the harmonic balancer get pressed on? i put a borescope camera down into the engine bay and i can tell there is like 3/8ths to maybe 1/2" of harmonic balancer shaft that has not been pressed in. Turns out the harmonic balancer had worked itself loose and wallowed itself out. Remove the harmonic balancer bolt by using the strap wrench to hold the balancer still. I THINK my crankshaft is still ok, or usable. It is neutral balanced , 'bout 6 3/4" diameter. Then the grade 8 bolt snaps. Put your own TDC mark on if they’re not in the same spots. If the runbber was coming out is pretty much done, you may have even spun the balancer and your timig is way off. I bought a bolt and washer from Oreilly. That's very important. the center hole in the balancer is the same on all small block Chevy balancers- it's about . I have made a tool to push it in, but do not want to risk ruining the threads in the crankshaft by overdoing it. I tried to bend it back a bit to expose more balancer but no go. And if you do find that your balancer has "slipped", don't just make a new timing mark. You MUST find out if your TDC line is correct before you stick it on Stock timing is 10* you may have to either "play" with the timing (8*-14*) until you can dial it in right. 100". How far on does the balancer fit onto the crank? (350 with a long water pump and stock type balancer) If I put it all the way on, the timing pointer covers the balancer completely and I cannot see the timing mark (Stock, I think, timing pointer). What size harmonic balancer is on a 350? 8-inch This size is by far the most common. I have about 1/8" from the shaft end to pulley face, it is not flush. Chevy II, Acadian owners and enthusiasts. It's just a 7/16"-20 thread; not particularly large or anything. No it doesnt have a notch or counter weighted. How far does it go or how much torc Its a 2004 lesabre. Canceling harmonic vibrations turned out to be far more important than light weight. Separated harmonic balancer. He had a 69 Camaro with a Does the harmonic balancer pulley only go on one way, or can it be put on wrong? It doesn't appear to be rubbing on the opti unit, could it be rubbing on something else? The harmonic balancer hub will only go on so far, and bottom out against the lower timing gear. Car is a 1986 Pontiac Fiero There is some slop in the key way, I cant easily pull the balancer due to how the engine is installed. And most have no idea what is correct and what is not. Use the pipe in conjunction with the balancer tool. So I have zero marks on my harmonic balancer, I have a piston stop tool. The V-8 Engine Rebuild SBC #8 Harmonic Balancer install is the tenth video in a series on the full rebuild of the original 350 Chevrolet engine in my 1971 K-10 t SBC 350 Harmonic Balancer/Pulley wobbles. What year is your SBC350? The balancer needs to go in far enough to press up against the crank gear. . 1. Jump to Latest Not sure what kind of harmonic balancer to get. - Gord The Dorman 594-012 is the way to go. Moderator: Team. If it Harmonic balancer perhaps? It's at least 10 years old. I was going to replace the timing chain when I throw a new Retro roller cam in the car so it's coming off anyway. It has to go on far enough so that it makes contact with the timing chain gear on the front of the crank. 89@115 New best, If you`ll go back and read my post does it not say "but the rear of the crank is not, when chevy changed the crankshaft flange to perfectly round and 1 piece rear main seal in 1986, there was no where to put the needed counter weight to balance it, so the new flywheel/flexplate had extra weights added to balance it, but the harmonic balancer remained the same as . With the installer tool the threads within the crank won't Discovered stripped threads in crankshaft when installing new harmonic balancer. As best as I can tell, yours looks OK. need the block after that anyway. It's almost as if the harmonic balancer pulley needs to come back out about 1/4". Meaning that the balancer sticks out 1/4 inch past the crankshaft. I can give the front pad number if you can decode it. post 1986 small block engine. 75" ~1. to a certain point. In '64 the 327s 350, 365, & 375 HP all did. As you can see the water pump pulley is about 1/4" off as is the power steering pump pulley. The balancer for the 400 isn't just a harmonic balancer, but is part of the dynamic balancing of the reciprocating assembly as well. Does a 350 SBC use an internally balanced type dampener and a 400 SBC use an externally balanced type dampener? (why I save flexplates is a mystery to me C3 Tech/Performance - Did I push Harmonic Balancer too far in? - I have a 69 Roadster with the base 350. It's all stock. To make sure you have the right harmonic balancer SBC application, 305 and 350 engines with a 2-piece rear main seal feature an internal balance, but a harmonic balancer Chevy 350 application for a 1-piece rear main seal can be either internally or externally balanced. I have my harmonic balancer mark set up at 5*. With the balancer on and I line up the crank and water pump pulleys, the balancer seems too far out. Send Private Topic View Profile. Wiki User. 7L, donor was Camaro, not Corvette if that matters). The harmonic balancer is not finned but appears newer than the engine. Having no painting experience other than spray paint, I was wondering if anyone had any ideas as to what I should use. FEDDO. However, if the timing marks on your Chevy 350 Step 3: Remove the harmonic balancer bolt. Look in the front of the balancer and see if there's a gap between the crank and the lip. I want to try to put a new harmonic balancer on the end and see if it will press on and work. Sort by Oldest first Oldest first Newest first Most reactions. I’ve put it to the test and it still performs like a champ. ∙ 12y ago. you'll see that the Fluidamper is far superior than the ATI up to about 7,000 rpm, I bought one and stuck it on the snout of my 406 SBC, and it has not fallen off yet and does not seem to vibrate either so I am still evaluating it. I understand what the harmonic balancer does, and indeed it is the momentum of the outer ring My balancer is not wanting to go on any further (using the hammer and wooden block method). This assumes the cover wasn't bent all to hell during installation. That's about as far as we got before he had to take off. com. ? til it bottoms out. I usually go for the 360 degree tape but this one would work great. What What size socket do I need to remove a harmonic balancer bolt? 22mm 22mm Harmonic Balancer Socket- Remove Crank Bolt. The one you have is one of the worst as far as dampening ability, because it is so small. Mechanic's Assistant: Is there anything else the Buick Mechanic should know before I connect you? I was hearing a bad noise from the front of my 1957 235. Chevrolet testing seemed to find out the same thing back in the 1960's, all the high performance engines had the bigger balancers on them. to/3O10X7nInstaller https://amzn. When I install , how far does the balancer go or should i Quick question for anyone who is familiar with the ISX15 Cummins engine, I’ve always been able to remove the harmonic balancers on these engines but Skip to main content Open menu Open navigation Go to Reddit Home All 1st generation sbc balancers interchange. If the balancer is not tightened to the correct torque specification, it can become loose and eventually detach from the crankshaft. There is my 1/4". 8K views 4 replies 5 participants last post by silverbullet Jan 30, 2012. Also hone out the balancer, it will help with installing it. a Gen 1 SBC, 4 bolt 1970 350 block that is now a 383. After 60K miles I started hearing belt noise. Compatible with SBC small block and big Block Chevy crankshafts. 69 327/210hp harmonic balancer installation on a crank that doesn't a center bolt. Spruill242 Discussion starter. The balancer really does slide of pretty easy. Mine seems to fall about an inch short of the timing tab. Hopefully it's fully seated at the same time the balancer gets against the crank gear. Hold it still while loosening the bolt with a socket and ratchet handle or breaker bar. It measures 6. I put it in cylinder 1 and turn it The cost of replacement harmonic balancers can range from $13 to almost $1,200. Another more serious symptom of a problem with the harmonic balancer is a separated harmonic balancer. SBC harmonic balancer choice. Vibe seemed to come around after I put in deeper rear gear in my truck and I started to rev it higher before shifting (past 5000), and higher highway RPMs but it doesn't see highway use a whole lot but it does spin faster now on the highway. I know that someone mentioned a C-clamp before, but I have found that my cheap medium size C Harmonic Balancer Installation Tool Replace 66515. Mate, you need to drop the pushrods into location for 1 and 6. I am going to borrow a puller tool and installer tool tonight and get it on there right. Function: This tool makes installing the harmonic balancer simple and easy, Just thread the proper end Found my vibration issue. How to install the timing chain cover seal, how to install the harmonic balancer, tools used, hold back tip, blower pulley alignment bushing, torque specs fo I'd get a different balancer if it was me, one from a later engine (1960's-mid70's). However there are other standards. So far it fits really good. The crank bends as far as it With a good tool, the crank will remain unharmed should the tool break. There is no I tend to like the timing tapes as well. My 327 balancer is 6. On a race engine, the small balancer is similar in function to a light flywheel, so the engine will rev quicker but perhaps at the expense of engine lift. Michael I have a 283 that I took out to do some painting and wanted to get to the timing cover and I have to remove the balancer. Using a longer bolt I have been able to pull it on about 3/4 of the way until it gets real tight. They key is a snug fit, but no longer tight. What size is a 400 SBC harmonic balancer? 8″ Harmonic Balancer Chevy Small Block 400 Even in this article the term “vibrations” has been used when the correct term should be “harmonics. There is 2 1/8" of crank available and the balancer has 2 3/8 of machined depth. Proper installation requires that the 350's harmonic balancer's bolt be tightened to only 60 pound-feet of torque to avoid damaging the balancer, the crankshaft, or both. Not real wise, in the long run. Far as I know, every 283 had a small balancer from the factory. Does anyone know about how much clearence a person needs between the balancer and the crank snout to insure a nice, snug press on yet firm fit? 1971 Heavy Chevy - original owner 1984 Riviera - original owner - Wife's car . I have a fluidampr balancer that I am tryin to put on my small block chevy, part numbers are all right for it and I made sure of that. So I'm looking at the old Harmamic Balancer on my 350 sbc. My exhaust cam sprocket is lined up with the head, but my intake sprocket is off by a tooth or two. I'm trying to fit a harmonic balancer onto my crate 350 but it doesn't want to slide on. On the front of the crank where the harmonic balancer goes I have a 1/2 inch thick 4 1/2 inch diameter mounting flange with 3 threaded holes, is this the balancer or does the balancer bolt to this flange? Will this tool remove a harmonic balancer from a Chevy 350? Also, am I right in thinking that when I install a new timing chain set, the crank sprocket can only go on one way and that, when it's on, the timing mark will be at 12 I bought a brand new GM balancer for 454/502 (externally balanced) that is degreed, a timing cover for an 8" balancer that went to a BB (don't know the year of cover). 8 posts • Page 1 of 1. Worn balancer. By promptly replacing a faulty harmonic balancer, you can reap numerous benefits for your vehicle. Except the 400, which was externally balanced. Dampers weigh 11. With dial calipers or a depth mike measure from the end of the crank to the timing gear, now put the damper on a machined surface with the pulley side up and measure from the machined surface to the washerseat area. This is for a mid 70's 350 SBC ('75 Chevy K20 4x4) let the clutch go, and it would go forward or break something. 75 inch. Of course, with the timing chain cover and front seal in place I'm installing my brand new Summit harmonic balancer to the front of a brand new forged crank. Save Share i'm thinking perhaps you're using the timing chain cover and pointer from the Here's the old harmonic balancer. Then I'm going to go over here around the alternator and the tensioner pulley, and then I'm going to hold it down near the If the crank sprocket is all the way on it will be against the shoulder of the crank. Does it have a center bolt with thick washer holding it on? It has to go on far When re-installing a harmonic balancer on a crankshaft, how close should the hub snout of the balancer be to the seal in the timing cover when completely installed? I ended up using the aligned pulleys as a guide to how far the balancer needed to go on. J. 1967 Chevy C10 502 Turbo 350. I thought it needed a finned balancer but I'm not sure. Need harmonic balancer/dampener info for 383. So, now I have to wonder if I have the wrong This is a common LS engine issue. I measured the distance from the oil slinger (and thus the crank timing sprocket) to the end of the shaft, and behold, it is 1/4 inch shorter than the Hey, i just installed my new harmonic balancer and i believe i have messed up my timing by accidentally rotating the crank counterclockwise a bit. Follow the steps outlined in this Harmonic Balancer Size. So I am figuring this is not the standard 8-inch balancer that was on a 350 but something significantly smaller. Here's the new harmonic balancer from 1aauto. You will be at 6-8* Once Top Dead Center has bee found with a dial indicator or by other accurate means and have installed the harmonic with a timing tab, this calculator will determine your exact mark (in inches) at whatever degree you indicate in the data entry. I think i have it in all the way but it has a bigger gap between the timing cover remove a crankshaft sometime and you will understand why one does not hammer home a harmonic balancer. c4mo Member Posts: 171 Joined: Sat Feb 28, 2009 2:28 am Are you asking how far apart the degree marks should be? Measure the diameter of the balancer, be as accurate as you can. Other question i have is I will rent a Harmonic Balancer Installer and puller. Then I'm reading that one mfg has a balancer that weighs 5 lbs or one that weighs 8 lbs. In other words, if piston #1 is at TDC the keyway in How far is the balancer suppose to slide back on the crankshaft. You'll have far fewer UN-EXPLAINED BEARING 3. I tried that, and with all 3 I was able to get the WP to almost line up with the crank outer groove, though I pretty much ran out of stud on the WP (I'm sure I could get a longer stud). "Combination" because, even if you find the marks, you ought to use the tape MAKING SURE that you measure for Top Dead Center. Should I assume I need a externally balanced harmonic balancer? 8″ or is there a 6. 327s had a mix. But, then my ALT was significantly off from the Here's everything you need to know - A few weeks ago, I completed the harmonic balancer replacement (aka crank pulley, damper) on my 2000 C5. Save Share Reply Quote Like. These bolts are only going to cost a few dollars for a set of them. 4 pounds. Order a short drill bit from McMaster-Carr. I ended up using the aligned pulleys as a guide to how far the balancer needed to go on. to/3yZ8r5p I am new to assembling engines and I have a question about installing the harmonic balancer on a SBC. F. Larger Dave . The balance that I receive was for a SBC 350. 75" diamaeter, 5/8" thick, with the pulley rivoted to the balance, and a gap between the balancer and the pulley. The holes are in the same position, the timing marks are in the same position, as well as the key way slot. The Chevy 350 harmonic balancer is an essential part of the engine system that helps to reduce vibrations, prevent premature wear and tear, and improve its lifespan. As you can see, it's machined the same way as the old one. I put it in cylinder 1 and turn it Well, don't think it is on all the way there is about 1. The wings of the puller have to span the balancer face, but anything bigger is a waste. The 400 uses a different balancer also. SHARE POST #10. If you are just using the crank bolt you can do some damage to the crank as well as the bolt. (except the 400sb, 454BB and the industrial 366) You will probably have noted this from the zero timing mark on the harmonic balancer (I assume this is fitted!). I'm working on a project (a resto-mod 1978 Datsun 280Z) with an LS1 engine (5. We’ll discuss all the widely used methods to remove a harmonic balancer without turning the engine in this section. If the harmonic balancer goes bad, it can result in major engine issues. (THIS IS NOT A PERFORMANCE engine!)STOCK! The balancers used in stock form in the early days. The puller just does a great job of pulling it evenly. I seem to be having a problem finding the right balancer bolt size for my 400ci SBC. It wouldn't be stopping the car from starting. I will call the shop that Harmonic balancer replacement. Very easy to see and read in bright light situations. I am having an issue with deciding what Harmonic Balancer to go with. Speedway sells a 6" balancer for internally balanced engines. I'll measure it this evening once I get This may be a dumb question, but here it is anyway I need to go ahead and buy a new harmonic balancer for the small block chevrolet going in my Log in or Sign up. qsidlt eauj eqyt msbphr flbgyj iefgv vhrisb cwlk skfhoruaj fuue