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I'm thinking about replacing my clutch. What's the best? Centerforce? GM? I get a kind of whirring vibration with the clutch pushed in while coasting up to a stop sign. If I start to let the clutch back out, it goes away. I'm thinking throwout bearing or clutchplate.
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k
I use the McLeod pressure plate & clutch. No problems or slippage & I've got more power than most
Alan
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T
Gary,
Based on a friend's reccomendation, I ordered the Hayes Street/Strip clutch. But it was backordered from Jegs & Summit.Another friend installed a Centerforce Dual Friction & he loves it. It has a good pedal feel & the more he revs, the more it grabs.
I installed the Centerforce too, but I haven't got my baby on the road yet.
Be sure to order a matched kit with the right throwout bearing. It won't hurt to have your flywheel inspected or even resurfaced also.
Good luck,
Anthony
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22720
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Sounds like a pilot bushing wear noise. If the bushing is worn, or even the end of the input shaft of the trans, it can make this kind of noise. When you are downshifting, or just coasting with the clutch in, the input shaft is spinning inside the bushing faster than the engine is turning. When the bushing is worn, then the input shaft will "flop" around inside the loose bushing, and set-up a vibration type noise.
Sometimes, if it is the bushing, you can get it to make the noise just sitting still. Push in on the clutch, and rev the engine up a bit, and hold it steady...about 1500rpm or so. Put the trans in any gear, so the input shaft stops turning, and see if you get the strange noise then. Try it a few times, just to make it a good test.
As far as what brand/type of clutch, it all depends on how you drive. I have a stock clutch in the '74...replaced it in '98, and I've had no problems with it. Hard driving, or racing would be best to go with a better set-up.
Sometimes, if it is the bushing, you can get it to make the noise just sitting still. Push in on the clutch, and rev the engine up a bit, and hold it steady...about 1500rpm or so. Put the trans in any gear, so the input shaft stops turning, and see if you get the strange noise then. Try it a few times, just to make it a good test.
As far as what brand/type of clutch, it all depends on how you drive. I have a stock clutch in the '74...replaced it in '98, and I've had no problems with it. Hard driving, or racing would be best to go with a better set-up.
Joel Adams
C3VR Lifetime Member #56 
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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I talked to my local garage last week, and they said to stay away from a Centerforce. Said that Centerforce will chatter. These guys are old school mechanics and drag racers, and really know their stuff. They suggested Hayes. Also, while I was there, they had a 78 L82/Auto Pace Car in a stall. They were working on the brakes. I commented on the nice car, and one of them said, "Yea, too bad the owner is a drunk. This car won't last too long."! Wish I coulda saved it. It had an Edelbrock carb and intake and headers. Oh well.
I check out the pilot bearing.
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in Forum: C3 Engines, Driveline and Handling
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