Below is my original post.

I finally got around to do some more investigation on the clutch noise (LOUD CLICK) when I press the clutch all the way to the floor..

I've check the linkage and it IS NOT the problem.
I removed the rubber around the clutch fork and had my wife step on the clutch and eliminated the suggestion the Viet Nam Vett made below. The ball does not move at all.

When I installed my rebuilt engine I had the flywheel cut and installed a new clutch kit that I purchased from ZIP PRODUCTS which was described as (57-78 10.4" X 10 SPLINE CLUTCH KIT).
The kit was manufactured by LUX (http://www.lukclutch.com/support/ins..._tips.phtml#e). I called them and explained my problem and they seem to think the the flywheel may be to thin. I don't know if it was ever cut before since I only own the car for 2 years. It was HEAVY and looked OK to me. I don't have any measurements.

I have 2 questions.

1. Is it possible that if the flywheel was cut TOO MUCH that it could create a loud click when pressing the clutch ALL the way to the floor.

2. Does anyone have a measurement if the total thickness of a flywheel?

Thanks for any comments.

Craig






I'm getting a loud click when I press the clutch pedal ALL the way to the floor. I recently installed a new clutch, pilot bearing, throw out bearing and the pivot ball for the clutch about 500 miles ago.
I've adjusted the clutch as described in the shop manual a few times to be sure it was adjusted right.

My questions are:

1. Is there anyting that stops the clutch other then the floor, maybe a rubber stop like the one that it rests on when it comes up?

2. Would moving the pedal as discribed in Black-Magic's post by Buns do any good?

Any comments would be greatly appreciated.

Craig

 

Ok..well this might not be what's wrong with your Vette but I'll relate a story about my 86 Corvette.

I also developed a loud "click" after the clutch got to the floor. I could also feel a slight bit of it in the pedal at my foot.Now ...the clutch in the 86 was Hyd and not mechanical like yours.

It turned out to be a crack in the bell housing right at where the ball stud screwed in. The ball stud was shifting over about 1/4 to 1/2 inch as I depressed the clutch causing the clicking sound. I think it was the fork shifting on the stud as it moved.

I had to replace the bell housing for the fix.

I'm not saying that this is what 's wrong with yours but a close check at the bellhousing ball stud area woulldn't hurt.

As long as you have the correct components installed and they are properly adjusted per the manual it should operate quitely.

Good luck in your hunt...keep us posted..

 

Thanks for the reply Viet Nam Vett. I can also feel it in the pedal when it happens. I'll check the bell housing.

Thanks Again,
Craig

 

The clutch rod runs pretty close to the clutch pedal arm and even with the proper spacer installed at the connection pin, may come in contact with it at some point when pushed in. Under some circumstances it might create a click. I had to put a subtle custom bend in my clutch rod so that it would clear.

Dan

 

Good point Dan... That spacer can get pesky.. It is important to have the correct spacer in their for proper clearence.

 

I had a '56 Chevy years ago that developed a "snapping" noise when the clutch was depressed, after I put a different clutch in it. It was caused by worn clutch linkage that was now operating in a different range and when it would get to the worn spot, it would "snap" and you could feel it in the pedal. I never did fix it. Just a little irritating.

You may have the same problem. I think it was one of the rods on the bellcrank.

 

When you installed the throw out bearing on the fork did you depress the spring steel clip and slide the bearing over the clips and the fork ends or did you put the bearing under the clip and on the fork ends?

 

Plaidside,
Good point, But I know I installed it correctly.

MikeM,
I hope you are right. It's alot easier than replacing the bell housing as Viet Nam Vett as suggested, but I fear his is right, because I disconnected the rod from the clutch pedal and moved the lever it attaches to and I still get the noise. This eliminates the possible cause being the spacer at the pedal as the problem. It still could be the cross shaft. The rod from the cross shaft to the fork is new, ( the one with the two springs) it was badly worn.

Thisn weekend, I hope to remove the rubber boot around the fork to see if I can see any movement on the pivot ball.

Thanks for all the comments.

Craig

 

I added my new comments above. Maybe I shouldn't have done it that way but it seemed easier at the time, but the system didn't allow me to do it that way.

 

exactly

 

I sell and install the same parts and they are quality. Well the clutch and pressure plate have to be correct. I dont have a clue as to what year you have, but if it matches up visually, it`s correct. The 3 finger lever type uses a short throwout bearing and so does the bent cone diaphram. If by some mistake you have the long bearing, thats wrong and may overide the plate. Flywheel resurfacing, you would have to nearly cut it in 1/2 by thickness to have any effect. I suspect your issue is a installation problem and not the parts.

 

I believe there are a couple of different size pivot *****. Do you still have the old one to compare the new one?

 

Get a piece of garden hose. Put one end to ear the other end goes where you think the "click" is coming from. Get wife to depress clutch pedal. Find the "click".

Shouldn't take long; there aren't many places.

 

OK, I'll take a guess and I don't know if this would cause the noise you hear. Is it possible that when you press the pedal all the way to the floor, that you are overcentering the clutch. Might the noise come from depressing it too far. Do you have a stop, other than the floor?

Again, I don't even know if it would cause the noise you are hearing...but...???

 

Craig,
As everyone has stated, it could be a number of things. It probably is due to something that you replaced, but sometimes noises are hard to track because the sound and vibration gets transferred through the metal parts.
Here's a problem I had once: Where the clutch fork rides on the pivot ball inside the bell housing there was a "flat spot." Every time the ball rolled over the spot the fork would shift and cause a clicking. It could also happen at the other end of the fork where the linkage sits in the cup of the fork.
Just to see if it's either of these things, take a little wheel bearing grease and dap a little on each spot and see if it makes any difference.
Good luck. I know how annoying it is when you try to make something better and cause another problem that you didn't have before.