how to balance a flywheel and clutch

If the flywheel and clutch assembly are out of balance, noise, vibration, and harshness levels will dramatically increase, and will inevitably cause extreme damage to the engine, transmission, or driveline. All rights reserved. You also need to know for sure what imbalance the flywheel and harmonic balancer are that you have. Granted, it does make for a smoother revving engine, that is assuming that it is out of balance in the first place. Steve (CTR). It only cost me $20. TECH GUIDE: Choosing a Ford Flywheel - What You Need To Know For not a lot of money the crank could/should be done also. The posts are mounted to the plate base which should be on rubber mounts to the feet. Tech: The Engineering Behind A Lightweight Flywheel - LSX Magazine You will need to know what imbalance the motor is that you bought. Come check out discussions on performance, specifications, modifications, purchasing, maintenance and more! All of our flywheels are SFI Certified which meet the top performance standards in the automotive and motorsports industries. This is also why companies manufacture heavier weighted flywheels. % VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Little known fact Vizard has driven my race cars and I have a collection of pre publication manuscirpts I have proof read for him. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright . We'll send you the most interesting LSX Magazine articles, news, car features, and videos every week. With so many performance flywheel options on the market today, it can be difficult to understand all of the different items available. Let us know how it goes. So, instead of drilling balancing holes into my brand new flywheel (which is really the correct way to balance everything individually), I just opted to offset the heavy point of the flywheel against the light point of the clutch cover. Flywheel Runout. Randy, I've been using Fort Wayne clutch in (Big surprise here) in Fort Wayne IN for years. Oct 27, 2007. The style of driving or racing will usually determine the need for a specific style clutch, which will strictly translate to the type of flywheel necessary as well. DIY flywheel & pressure plate (aka clutch cover) static balancing for Passwords are case-sentive.If you continue to have problems click on the Help Icon for additional options. Its recommended to balance the entire assembly as a whole after verifying the tolerance level of the flywheel itself. I would balance them before I put them in so you don't have the same problem I'm having. They also do driveline repair. Since this is such a massive part with large diameter, it has to be balanced, and the factory usually does a pretty good job of it. SPEC reduces unwanted weight on a vehicles driveline by reducing mass in its entire clutch assembly, starting with its flywheel. Is this a good idea? //damperdoctor.com/index.php?route=common/home. Yea,..you have to have everything that rotates including the washers and bolts and..andand send it to the shop and watch them balance it with the crank and all the parts attached to the crank. I've been very happy . When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Any time you're going to be using a clutch that has a puck typeface, semi-metallic, ceramic, doesn't matter. Also, enthusiasts must prioritize performance and drivability. Fidanza Performance applies a unique protective coating to identify any remaining oil or residue from its machining process to each of its flywheel and clutch assemblies. You may not need much weight then to balance. These would be resurfaced like a conventional flywheel and do require replacement once the surface gets to its minimum tolerance. :cheers: MTI 383 Stroker Motor. You need to check with the shop that did your balance work or any of your machine work to find out what flywheel you need to order. Add to that the flywheel and clutch when used on an externally balanced crank need to be balanced with the crank assembly which means the engine has tp come apart. Changing a clutch in a car is never an easy task. Like many other go-fast parts, the flywheel is not a one-size fits all type of component. We do offer a lineup of steel flywheels that do not have a replaceable friction surface. Please try again. This question is important because many enthusiasts have claimed that depending on the material that the flywheel is manufactured out of, it can inadvertently affect the vehicles drivability. Login with your E-Mail Address. not trying to be smart here.. but your way over your head in this dept. If in doubt, flat out. However, when you get into the options from all of your aftermarket companies, you'll either have billet steel, billet aluminum, or both in fifty-ounce imbalance, twenty-ounce, and even a complete zero neutral balance. As we mentioned earlier, the flywheel is a specific component which must also be matched with the correct clutch assembly for that application. Never built another without balance. do you know how to set the ring end gap? Norton/SPEC:SPEC flywheels are precision-balanced before shipment, as well as balance-checked after being paired with a clutch assembly, which is also balanced after production. That component is the flywheel. 289 Flywheel Installation | Mustang Forums at StangNet Reply. All flywheels are balanced and thoroughly inspected for quality and fitment. If I was you, I would get the short block, take the crank out , at least ,( you should do the pistons too), and find a balance shop. They are balanced and no metal had to come off or be added. Colin Chapman. Flywheel Alignment and Balance - FreeASEStudyGuides.com In the 25 years I worked at an auto machine shop I'd guess I worked on over 1000 balance jobs. to do the flywheel, back plate diaphram, pulley and damper using my balanced crank. Factory flywheel was cast iron, and six bolt pattern, and also 50 ounce imbalance. Steve (CTR). I have nothing to gain from leading you astray. Should you need information on something not found below, there will likely be a little more research to be done. Balancing doesn't "have" to be done, and race builders also alter the balance to allow for some positive benefits by overbalancing. 383 Stroker - Internal or External Balance? | Hot Rod Forum which way the piston rings go on the piston as well as how to index them on the piston? That must be a clutch only price. Norton/Spec:Chassis setup, power curve, gearing, and tires are variables to consider when choosing inertia properties. The billet steel will also work great in a stock application if you just have to have the best of the best for your car. Build your own custom newsletter with the content you love from LSX Magazine, directly to your inbox, absolutely FREE! SPEC maintains a one-one-thousandth machine tolerance to assure a perfect rotational integrity, fast clutch seating, and maximized drivability. When a clutch assembly begins to wear outandneeds to be replaced, the friction surface of that flywheel in that clutch assembly is often resurfaced instead of being replaced. These engines needed more weight to balance them so Detroit put some of the extra needed weight . In our hay day we got 17 sets of V8 heads out each day. An example of this is that some companies use different materials to manufacture flywheel options, or even different lightweight flywheel design styles. All of your factory flywheels were cast iron, six-bolt pattern, and also fifty-ounce imbalance. I had a really bad vibration. Someone who has been rebuilding engines for 30 years+ and is still in business should know what they are doing. The down side is i didn't include the cost for these new parts in my engine rebuild buget :0( Oh' well there's no saving these parts, so i gotta get em all new Man this is an expensive hobby! . 1 Piece Rear Main Seal Flywheel Help? | Pirate 4x4 As long as it can be mounted on his balancer. It should also be checked Jerry I am just trying to help..I also did some learning the hard way.. PDF Installation Instructions for Clutches & Flywheels With so much inconsistency in enthusiast reports of flywheel performance, we felt this was a topic that merits discussion. This is the heavy spot. BALANCE & TRUING OF FLYWHEELS - YouTube cam and bearings, frt. Chromoly flywheels are an excellent choice for any performance or stock build. Copyright 2021 action clutch. Action Clutch specifically designed our Chromoly flywheels for a reduction in weight and inertia for better engine response. However, not a major concern if you change the flywheel at a later date on these motors. Mal stop me man, Hey I'm OK. If you don't have your shaft balanced you will have wasted your money. eV/ .c}%&?i.csayH,/~D^U! }X2pF?Ui4+D9?zsz0k n'O|oF}O3I}oa-7|. Many SPEC aluminum flywheel options, as well as certain steel flywheels feature a replaceable friction surface. Our billet aluminum flywheels are a great choice for street performance vehicles, as well as, ones used in road racing, autocross, time . When it comes to high-performance applications of any sort, there comes a time when the capabilities of the vehicles OEM clutch assembly will have to beevaluated. Decent used stuff comes up on the bbs every so often if you are not in a hury You can balance individual components but the balancing isn't perfect. From the factory, your '82 to '95 Mustangs came with a 10 inch clutch. What is Chromoly? I have been retired from there 15 years. don't even ask him " how much " when he calls and says it ready, just go down there with a wad of cash and pay the man and thank him. When parts for the old balance machine went NLA they spent $28000. The larger balancing cones used on the static balancer came from No Mar as I remember (for their BMW motorcycle kit). The shop is not in ahigh rent district and that probably helps. Balance flywheel/pressure plate yourself - Club Cobra Now that we know what a flywheel does, we can see just how important it is when it comes to the balance of the transmission, clutch, and even the engine assembly. Flywheel Clutch Balancing Information Help Please This translates to a safer and smoother drivability on the street. He doesn't need the clutch. My bits are ready for balancingthe second engine needs a SPI clutch (an MPI clutch was sent) and crank lapped then both can go off together. Some enthusiasts may want the maximum power gains and choose the lightest unit, whereas others may want the most stock-like drivability and choose a stock weight or slightly lighter flywheel. If you're going to be visiting the track a bunch, doing a bunch of high RPM clutch dumps on sticky tires, probably not the best choice. p.s. In addition, engine balance there are three other important factors to consider. 440 flywheel & clutch questions - For B Bodies Only Classic Mopar Forum The lighter a flywheel is, the faster it spools up RPM; but also means the harder it is to start from a standstill. If you have a zero balance motor it means that you need a flywheel balanced to zero. Sep 21, 2010. for teh 383 to balance correctly without an expensive flywheel any 86 and up single rear main seal flywheel and get a balance plate that bolts between the crank and flywheel fyi these plates are available for 454 as well helps save money when ya already spent a pile on small block stuff. By the same method one could balance , theoretically one could balance the complete motor in place. Weekend Automotive - Instagram I just had the Spec III put in my car using the stock flywheel. non biased Shelby Cobra related site! Each flywheel option the company offers is manufactured for a specific vehicle application, and different driving habits. The inertia properties of the flywheel can accentuate clutch attributes. For starters, it provides the initial inertia to get the engine running and also provides the rotational inertia to keep it going, otherwise, the engine would stall when you lift your foot off the gas. Manufacturer of Performance Clutches and Flywheels Since 1962. 2023 Power Automedia. The SFI Foundation, Inc. (SFI) is a non-profit organization established to issue and administer standards for the quality assurance of specialty performance and racing equipment. Flywheels can be manufactured from any of a variety of materials, including various grades of steel and billet aluminum. PRESSURE PLATE BALANCE - Whenever balancing a pressure plate to a flywheel, do not weld on the clutch lever . Have you been searching for the correct flywheel for your 82-95 Mustang? While the flywheel is not an obscure component to comprehend, selecting the proper flywheel for a specific application is often shrouded in mystery for manyenthusiasts. The friction surface material and inertia most directly affect how the clutch feels to the end user, and will ultimately dictate other factors, such as performance and wear life., Our flywheels are designed as a direct OEM replacement, which means they willmeetor exceed all factory tolerances. clutch balance - BMW Motorcycle Owners of America Pull your crank and have it balanced then have them add parts and balance each as they go. <> I try for the very best result. Broken cranks, cracked bell housings, are all a result of out of balance. Cobra Make, Engine: Contemporary with 482 KC/SO, TKO600,IRS Jag/AMP, 3.54 Salisbury PL, Now that I have to order a new shortblock to replace my busted Pond sideoiler by courtesy of Eagle Cranks I have to separately balance the flywheel with the pressure plate attached, and also the harmonic balancer. When I was in the biz 4 cyl balance was $125. I would order a new front pulley and damper. As long as the clutch and pressure plate bolt up and have the proper static pressure engagement then they will work together. OK, I just found out my engine rebuilder DOES do balancing. On a racecar, the flywheel is often times made as small and light as possible. In drag racing, having too light of a flywheel will not slow the engine enough to allow for up-shifts. Machinist will match mark the PP and flywheel so you assemble them in the same fashion that they were balanced. However, that same flywheel would warp or even flex under the load of a larger style diaphragm clutch. All I have seen are junk. i know you don't with that done and you somehow manage to assemble the rest correctly..you will be able to beat the liven crap out of her for a long time. Steve (CTR), Maybe I should not go here, but I would not bother with a rebuild damper/ balancer. The flywheel is an important part of the clutch assembly. Due to the loss in mass, these tend to require changes in your driving habits which can be a bit irritating for daily use. After rearranging the parts (moved the clutch housing and spring plate marks closer together to offset the flywheel) it hung level. Flywheel | O'Reilly Auto Parts Another broken crank would suck!! When it comes to flywheel options, more specifically, a lightweight flywheel, many enthusiasts worry about the issues associated with them. FOLLOW: I'm sure you do as well. This means the flywheel will not require any extra balancing after the machining process. Living in San Diego for most of his life, Harrison was exposed to a variety of cars at an early age. The flywheel also balances the engine as it is specifically weighted the engines crankshaft, and most importantly, the flywheel connects the engine to the transmission through the clutch in order to provide power to the wheels. This is the point we are trying to get across. Balancing a flywheel is very important for rotational integrity and safety, and drivability. Was a 50 ounce imbalance flywheel and it's a very common upgrade to make those a 10 and 1/2 inch whenever you go to swap out the clutch. Our aluminum flywheels are made from 6061-T6 Billet Aluminum or 1045 / 4140 Billet Steel depending on application. Were a forum community dedicated to the Chevy Z06 Corvette. , Had two crank grinders running all the time. Register now for free! 2 0 obj Hovsepian/Quarter Master:If an enthusiast plans to re-use the existing flywheel for a new clutch assembly, wed recommend the flywheel be machined to a new tolerance. Some drag racers prefer the additional weight to aid in launching off the line. According to Autoguru.com, the flywheel has a few different purposes. According to Vizards book crank balancing is fine if you have the cash and the time, but not really cost-effective. Mustang & Lightning Tech, Articles, How To Videos, 94-04 Mustang Tech, Articles, How To Videos, SVE Flywheel - Billet Steel - 10.5" - 0/28/50oz (79-95) 5.0/5.8, Cast Iron Flywheel - 10.5" - 50oz (79-95) 5.0, McLeod Flywheel - Nodular Iron - 10.5" - 50oz (79-95) 5.0/5.8, Ford Performance Flywheel - Billet Steel - 10.5" - 50oz (79-95) 5.0/5.8, Ram Flywheel - Billet Steel - 10.5" - 50oz (79-95) 5.0/5.8, McLeod Flywheel - Aluminum - 10"/10.5" - 0/28/50oz (79-95) 5.0/5.8, Ram Flywheel - Aluminum - 10.5" - 50oz (79-95) 5.0/5.8, Ram Flywheel - Billet Steel - 10.5" - 28oz (79-95) 5.0/5.8, Ram Flywheel - Aluminum - 10.5" - 28oz (79-95) 5.0/5.8, Ford Performance Flywheel - Billet Steel - 10.5" - 0oz (79-95) 5.0/5.8. Just my 02c. On a 40+ lb flywheel / pressure plate assembly, that's good enough for the pickup truck. off centered off balance. The ability of the flywheel to control heat and maintain tolerance can also prolong clutch performance and wear under extreme conditions. As such, the flywheel can obtain hot spots due to the excessive friction and heat over time, which in turn can cause vibration whenever its engaging and when the vehicle is under acceleration. The threaded rod of the static balancer are inside of some .250 wall thickness tubes, which helps reduce deflection and also aids in rotational surface against the bearings on the static balancer. Chromoly is an abbreviation for chromium-molybdenum steel" due to its property of incorporating alloy elements chromium and molybdenum. YES! Can't wait to get it installed now. Cause you know while you're balancing it, you could always take off a few lbs. lol, any race rules where you can "balance a flywheel" please they're shaving off every ounce of weight possible claiming it was necessary for balancing because no one is going to check the damn flywheel, After starting my tear down, i realized how bad my flywheel, PP, and clutch plate really is. I think that bolt in the back of the Flywheel may hit the block anyways. so how many engines have you guys balanced????? The flywheel can typically be resurfaced pretty easily and should be a relatively low-cost procedure. This is, of course, after the flywheel has been balanced as well. Flywheel Balancing | Hot Rod Forum George Hovsepian, Quarter Master. DIY Dynamic Flywheel Balancing - YouTube When choosing a flywheel, the right choice ultimately comes down to the intents and purpose of the vehicle, andthe amount of power the engine is making. Our job is to analyze the original flywheel and engineer major improvements. I hope when you get it all together and running it does not have any unusual vibrations as you will have wished you took the advice. The balancing machine in the picture is supposed to have the piece being balanced spun , not too fast maybe 800 - 1000 rpm . :0). Saleen is a registered trademark of Saleen Incorporated. The bike is back together and it is very smooth. Now that we know what a flywheel does, we can see just how important it is when it comes to the balance of the transmission, clutch, and even the engine assembly. Norton/SPEC:The flywheel is the component that contributes the mostto the performance and the overall drivability of the clutch system. The correct tolerances would be matched to what the OEM toleranceis, although this will vary per application. They are specifically made for light to high tuned racing cars that see drag racing, drifting, autocross, street use, and rally events. The clutch cover was also out of balance (about 20 grams). The manufacturers we involved in this article have dedicated an immenseamount of research and engineering to develop a high-performance, highly capable flywheel for virtually any application imaginable.
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how to balance a flywheel and clutch 2023