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Ticking Noise

Forum: C3 Engines, Driveline and Handling

13 Messages
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Ticking Noise

Posted: 4/26/09 3:10pmMessage 1 of 13
j
jp75vette
Former Member
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Bloomfield Hills, MI - USA
Joined: 6/29/2008
Posts: 199
Vette(s): 1975 Corvette coupe, 4 speed manual, 383 ci 9.5:1,Edelbrock dual plane Air Gap intake, Alum Heads,Comp Cam, roller Rockers, PS,PB,Tilt
Ok , I rebuilt the transmission over the winter, new bearings and syncros and sliders. Transmission is back in and the good news is that  I now have 3rd gear back. In the past I could never shift into 3rd gear.  I have a temporary eBay CPlus shifter in as the original went to Hurst for rebuild, but that takes 8 weeks.
The issue is that there is some kind of ticking noise near the bell housing. I drove the car around the block and all gears work OK, but there is a ticking noise. The noise is also there when the car is stopped and running in neutral and also with the clutch in.
The car is back on stands as now I need to find out where the ticking comes from.
Anyone have any ideas?
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Ticking Noise

Posted: 4/26/09 3:16pmMessage 2 of 13
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DaveM
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Flanders, NJ - USA
Joined: 1/27/2004
Posts: 2556
Vette(s): 1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.
Does your clock work? Rolling On The Floor Laughing  Sorry I just could not help myself.
I'm sure some guys will come up with good ideas for you, good luck with it.
Dave

 

Lifetime Member #116
Dave's '82

   

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Ticking Noise

Posted: 4/26/09 4:56pmMessage 3 of 13
j
jp75vette
Former Member
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Bloomfield Hills, MI - USA
Joined: 6/29/2008
Posts: 199
Vette(s): 1975 Corvette coupe, 4 speed manual, 383 ci 9.5:1,Edelbrock dual plane Air Gap intake, Alum Heads,Comp Cam, roller Rockers, PS,PB,Tilt
Right now the clock is out of the car, so that's not the root cause. By the way I have the clock running on a power supply after I filed the points. This seems to be a common cause for inop clocks. Does anyone know where you can buy new points?
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Ticking Noise

Posted: 4/27/09 11:30amMessage 4 of 13
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aceinthehole
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Manteca, CA - USA
Joined: 11/20/2005
Posts: 3623
Vette(s): 1978,two tone,Metalic Rootbeer & gold 1975 L48 4 speed
You didn't say if you had replaced the clutch and throughout bearing. the throughout bearing sounds suspect, though it usually changes tone when engaged (when noisy) unless it's engaged full time. Though I'm new to Chevys, I've replaced several new throughout bearings on Fords that were faulty. Good luck Jack.

Jimmy B.
Just can't wait to get on the road again.

 
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Ticking Noise

Posted: 4/27/09 3:18pmMessage 5 of 13
j
jp75vette
Former Member
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Bloomfield Hills, MI - USA
Joined: 6/29/2008
Posts: 199
Vette(s): 1975 Corvette coupe, 4 speed manual, 383 ci 9.5:1,Edelbrock dual plane Air Gap intake, Alum Heads,Comp Cam, roller Rockers, PS,PB,Tilt
Yes, I did replaced the clutch, pressure plate and pilot and through out bearing. I also had the flywheet resurfaced. I will pull the starter and the cover plate at the front of the bell housing to see if I can see anything wrong. I hate the thought of pulling the transmission again.
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Ticking Noise

Posted: 4/27/09 5:30pmMessage 6 of 13
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ebo
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Holland Patent, NY - USA
Joined: 6/3/2008
Posts: 4422
Vette(s): #1 *1980 White, Red interior 14,000 mile #2 *1980 Red, Oyster interior 93,000 miles Resto project car, rebuilt to 383 stroker
So if the clutch is in and it makes noise that at least rules out the tranny right? So is it a metal to metal noise and does it increase with RPM?

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Evil Smileebo
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Ticking Noise

Posted: 4/27/09 6:15pmMessage 7 of 13
j
jp75vette
Former Member
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Bloomfield Hills, MI - USA
Joined: 6/29/2008
Posts: 199
Vette(s): 1975 Corvette coupe, 4 speed manual, 383 ci 9.5:1,Edelbrock dual plane Air Gap intake, Alum Heads,Comp Cam, roller Rockers, PS,PB,Tilt
Yes tranny seems to operate fine.
 
I have a hunch that it's something to do with the front cover on the bell housing, tomorrow I will pull the starter and remove this front cover.
 
Yes it inceases with RPM, I'm thinking that I did not thighten a bolt or put in the wrong size.
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Ticking Noise

Posted: 4/28/09 2:55pmMessage 8 of 13
j
jp75vette
Former Member
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Bloomfield Hills, MI - USA
Joined: 6/29/2008
Posts: 199
Vette(s): 1975 Corvette coupe, 4 speed manual, 383 ci 9.5:1,Edelbrock dual plane Air Gap intake, Alum Heads,Comp Cam, roller Rockers, PS,PB,Tilt
Found the root cause. I removed the starter and the front bell housing cover. That cover was rubbing in the end of the crankshaft. I took off the cover and reinsatlled starter. Everything sounds great.
 
Thank goodness, I was not looking forward to removing the transmission again.
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Ticking Noise

Posted: 4/28/09 3:53pmMessage 9 of 13
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ebo
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Holland Patent, NY - USA
Joined: 6/3/2008
Posts: 4422
Vette(s): #1 *1980 White, Red interior 14,000 mile #2 *1980 Red, Oyster interior 93,000 miles Resto project car, rebuilt to 383 stroker

All's well that ends well!


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Ticking Noise

Posted: 4/28/09 7:40pmMessage 10 of 13
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aceinthehole
Former Member
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Manteca, CA - USA
Joined: 11/20/2005
Posts: 3623
Vette(s): 1978,two tone,Metalic Rootbeer & gold 1975 L48 4 speed
All right Jack ! Thumbs Up Found a similar thing on the wife's inspection cover recently. Guess she hit a speed bump and caved it into the ring gear.

Jimmy B.
Just can't wait to get on the road again.

 
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