eg_b18c

So I just replaced the stock clutch on a b16 tranny with a Clutchmasters Stage 3 and now it makes a clunking noise anytime the car is in gear/clutch engaged. If I put the car in neutral or depress the clutch pedal while in gear, the clunking noise goes away. As you go faster, the clunking noise becomes a fast clicking noise, almost like a ticking clock. The flywheel was resurfaced and the throwout bearing was replaced prior to installing the clutch.

Any help would be greatly appreciated.

Thanks.

Mike K

pilot bearing. sucks to be you. you're gonna have to drop the tranny again.

eg_b18c

is that the bearing on the flywheel? son of a b*tch!

thanks for your help.

eg_b18c

I'm looking through the archives and people are saying that the only time the pilot bearing is turning is when the clutch is disengaged. When I disengage the clutch, the noise goes away. I only get the noise when the clutch is engaged and in gear...

scLSteg

bump . .i have the same problem any one else want to take a stab??

sackdz

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg_b18c &raquo;</TD></TR><TR><TD CLASS="quote">I'm looking through the archives and people are saying that the only time the pilot bearing is turning is when the clutch is disengaged. When I disengage the clutch, the noise goes away. I only get the noise when the clutch is engaged and in gear...</TD></TR></TABLE>

true, besides its a tiny *** bearing and i don't think its capable of a clunk maybe a tick... want to elaborate milfman?

JimBlake

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg_b18c &raquo;</TD></TR><TR><TD CLASS="quote">... the only time the pilot bearing is turning is when the clutch is disengaged...</TD></TR></TABLE>True.

Throw-out bearing? Tranny shaft bearing? Disengage the clutch (press down the pedal) very quickly. Does the noise stop instantly (T-O-bearing)? Or does it take a second or 2 to coast to a stop (tranny bearing)?

eg_b18c

Yes, if I disengage the clutch very quicky, the noise stops instantly. I can be in 2nd gear, where I've gained some speed and it's clunking away and as soon as I put the car in neutral or disengage the clutch, the noise will stop right there and the car will be rolling with no noise whatsoever. Put the car back in gear or engage the clutch and the noise comes back.

FYI: I installed the new throw-out bearing that came with the clutch kit and greased it down pretty well when installing it...

Thanks again for your help.

JimBlake

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg_b18c &raquo;</TD></TR><TR><TD CLASS="quote">... as soon as I put the car in neutral...</TD></TR></TABLE>That statement bothers me. Maybe an axle or diff??

Does it make the noise when stopped, idling in neutral with the clutch engaged (pedal NOT pressed down)?

Does it make the noise coasting along in neutral with the clutch engaged?

eg_b18c

When stopped, idling in neutral with the clutch engaged, it does not make the noise.
Also, it does not make the noise when coasting in neutral with the clutch engaged.

Basically it will not make the noise at all in neutral (clutch engaged or not) nor will it make the noise at all if the clutch is disengaged (pedal pressed down) and in gear.

JimBlake

That doesn't really fit either T-O bearing or tranny shaft bearing. Maybe it only happens when there's a load on the driveline?

Any way you can make the noise with the car stopped? So you can pinpoint it's location? (Like maybe supported so the front wheels are in the air spinning?)

Some kind of wind-up or backlash in the drivetrain? What happens when you turn off the engine, put it in gear, NO parking brake, & rock the car back & forth. Excessive looseness or klunking?

eg_b18c

Yup, I'm testing this with car jacked up so the front wheels are spinning as I'm testing this through the gears. I actually haven't tested the car yet with the wheels on and driving on the road. I just bought a stethoscope to see if I can pinpoint the exact location.

I'll also try putting the wheels on and rock the car while in gear. Good idea. Thanks!

sackdz

Does the clunk increase frequency with engine speed or wheel speed?

Does it stop when its in gear but you let off the throttle (engine braking?

eg_b18c

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sackdz &raquo;</TD></TR><TR><TD CLASS="quote">Does the clunk increase frequency with engine speed or wheel speed?

Does it stop when its in gear but you let off the throttle (engine braking?</TD></TR></TABLE>

Yes, the frequency of the clunking increases with engine speed.
No, it does not stop while its in gear and letting off the throttle.

sackdz

Well its definitley on the mainshaft/input side then. Did you open the tranny at all for anything? Are you sure you torqued the PP down correctly?

scLSteg

i've got the same problem . .anyone else??

eg_b18c

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sackdz &raquo;</TD></TR><TR><TD CLASS="quote">Well its definitley on the mainshaft/input side then. Did you open the tranny at all for anything? Are you sure you torqued the PP down correctly?</TD></TR></TABLE>

Nope, I didn't open the tranny at all. Just pulled the tranny off to install the clutch.
Yes, I don't remember the exact number, but I torqued the PP down per the Helms manual.

Mmendes424