First time for me experiencing this problem this severe.
Shakes whole car.
EM Corvair 4 speed drive train.
Please advise opinions / causes in decreasing order of probability
TY in advance
BC

Bob C aka Dryenko
Dobson, NC 27017

Oil on the clutch would be a likely cause of chatter.

Unfortunately no matter what it is probably going to have to come out.

---

Gary
1966 Corsa Convertible
Northern New Jersey

Possibly lost material on clutch disc? Clutch adjustment / worn pins in clutch linkage?

Might want to check motor mounts / cross member mounts, also.

I experienced some real bad chatter coming out of first gear when I initially got my four speed. Check the mounts between the body and the trans. I had loose and damaged bolts that were nearly ready to fall off.

--------------------------------
Was a 1962 Monza Convertible
Now a 1964 Spyder Clone/Tribute
Santa Cruz/Northern CA
--------------------------------

On my Rampside, the crossmember to transmission bolts were loose (really, really loose).



Eric P.
DeWitt, IA

isucorvair Wrote:
-------------------------------------------------------
> On my Rampside, the crossmember to transmission bolts were loose (really, really loose).
>
>
>
> Eric P.
> DeWitt, IA


On my EM vert...that was the case with mine as well! Like....how didnt anything fall out on me!

--------------------------------
Was a 1962 Monza Convertible
Now a 1964 Spyder Clone/Tribute
Santa Cruz/Northern CA
--------------------------------

Exploded clutch disk. I had this happen, and the resulting clutch chatter really was severe enough to shake the whole car.

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car
Test Start#2 [www.youtube.com]

I would like to think that Bob has seen the obvious loose or worn mounts/trans to support bolts loose and oil soaked disc facing.


How about a couple of hidden possibilities? First the disc face is not straight with the center. It has a wobble. Not out of round but same as a bent wheel.

Next is the diaphragm is not releasing even between the flywheel and the pressure block of the clutch cover.

Good luck figuring it out.

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo---1965 Crown V8
1967 monza 110/4---1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC/V8 Registry

I've sometimes had good luck with the old idea where you put the wheel against a curb, slip the clutch until it smokes, shut it off and walk away for at least 1/2 hour until it cools. Sort of extreme and risky but I've never had one get ruined. Knock on wood.
I put a used still riveted flywheel/disc/pressure plate in my Van. It was not engaging smoothly but is maybe getting better with use.

Jim Brandberg
Isanti, MN
CorvairRepair.com

happened twice to me. First time was a really bad pilot. Second was the trans motor mounts. The motor mount bolt rusted and the nut slid way down. With the mount it was worse in reverse

J.O.

65 Corsa Turbo Vert
79 Honda XL 500S
69 Honda CL 160 D
2010 BMW F 650 GS
2003 Bounder 36D
2013 KIA Optima SX turbo-AKA ZIPPY (wife,s car)
69 Newport Holiday Sailboat
Baja 150 dune buggy cart
Coleman HS 500 UTV
2016 KIA Sorento SXL Turbo

Bethlehem,Pa

on my rampside I changed the pilot bushing twice each time it was worn and the clutch always chattered , third time was the charm , the flywheel had 0.080 wobble runout not radial

Roger R
Madison Wi
62 ct pg turbo
65intercooled 180 4sp,autocrosser
62 Rampy

It has been my experience with the early's that all the mounts need to be in near perfect condition so the engine does not move fore and aft. The second thing is the horse collar body mounts, they also need to be good as they will also let the engine move.

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

Did you do a recent clutch replacement? If so you could have a hard spot problem with the flywheel and or the pressure plate. The newer non asbestos discs dont like the possibly lumpy clutch / flywheel surfaces and will chatter. If this is the case refinishing the clutch/flywheel friction surfaces is the solution.


Ray Johnson Villa Park IL 63 Spyder Conv. 140 EFI