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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Apr 2014 Posts: 12 New Guy | | New Guy Joined: Apr 2014 Posts: 12 | Just finished all new clutch parts. When I engage the clutch, it makes a switching sound or like something is rubbing ( hard to explain). Stops when I take foot of clutch. Any suggestions? | | | | | Joined: Oct 2016 Posts: 916 'Bolter | | 'Bolter Joined: Oct 2016 Posts: 916 | Did you put the disc in backwards?? That sounds a lot like the sound a disc will make if it's been installed backwards... Is it drivable?
~ Dave
1950 Chevrolet 3600 3/4-ton with 261 engine & T5 Transmission
| | | | | Joined: Feb 2004 Posts: 29,809 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,809 | Which way were the torsion springs at the clutch disc center facing? They're supposed to fit back into the pressure plate. If the disc is installed with the thick part of the spring hub facing the flywheel, the springs drag on the flywheel attaching bolts and make a rubbing noise when the clutch pedal is depressed. Most discs are marked "flywheel side" for this reason.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Apr 2014 Posts: 12 New Guy | | New Guy Joined: Apr 2014 Posts: 12 | The clutch worked just fine for a couple months after ling. And then the noise began. It still works ok | | | | | Joined: Feb 2004 Posts: 29,809 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,809 | OK- - - - -that sounds like the beginning of a throwout bearing failure. The imported bearings being sold these days have virtually no lubricant in them, and it's not uncommon for one to get noisy pretty quickly. It makes sort of a "swishing" noise when the clutch pedal is depressed, and the noise goes away as soon as the pedal is released and the bearing stops turning. It's mostly annoying- - - -a slightly noisy throwout bearing will last a long time as long as there's a slight amount of free play at the top of the pedal stroke so the bearing doesn't run all the time. If it begins to grind, squeal, or rattle, it's time for a new (American-made) bearing.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Aug 2001 Posts: 3,599 Moderator | | Moderator Joined: Aug 2001 Posts: 3,599 | Jerry has sound advice.
I like to add a small amount to a new bearing on installation.
Mind you, not very much,less than half of what you would you would put on your tooth brush in the morning.
As any excess will sling out and could cause issues with your clutch or clutch chatter.
What do you think Jerry?
Don
1967 GMC 9500 Fire Ladder Truck"The Flag Pole"In the Stovebolt Gallery1946 2-Ton grain truck 1946 3/4-ton pickup, 1953 1-ton pickup 1957 1-ton flatbed dually, 1954 Pontiac Straight Eight Of all the things I've lost in my life, I miss my mind the most! | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | I have been repacking good used throwout bearings for years. Here is my blog post on it.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Feb 2004 Posts: 29,809 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,809 | That's an interesting approach- - - -I think I'd stop a couple of pump shots short of a complete fill to allow for heat expansion rather than completely filling the bearing. It doesn't take much thrown grease to make a clutch chatter and/or slip.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Mar 2010 Posts: 10,281 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,281 | The old style square head bolt was a nice touch!
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 |
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Apr 2014 Posts: 12 New Guy | | New Guy Joined: Apr 2014 Posts: 12 | thanks guy's for all the good info. I was afraid it was the through out bearing but I didn't want to remove transmission after installing custom sound barrier and carpet. A major job to remove the floor pan transmission cover plate at this point
thanks again | | |
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