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| | | Forums66 Topics128,089 Posts1,056,139 Members48,435 | | Most Online14,466 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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#76480 04/18/2007 10:12 PM | Joined: Jan 2007 Posts: 172 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2007 Posts: 172 | Hello, My C30 has the four speed on the floor. When I am cluched I hear something spinning...with like a light metal on metal noise. This is not a grind or a sharp noise...just a metalic whirring.
So while experimenting I decided to take it out of gear while stopped...so as not to hold the clutch pedal down. That stopped the noise.
But....then when I went to get back into gear it was a hard shift...as if the engine was running too fast or something.
Any ideas...and is it fixable? 1965 Chevy C-30 1-Ton "Work like you don't need the money. Love like you've never been hurt. Dance like nobody's watching." | | |
#76481 04/18/2007 11:23 PM | Joined: Mar 2005 Posts: 1,029 Member | | Member Joined: Mar 2005 Posts: 1,029 | Could be the pilot bearing, but more likely the clutch release (throw-out) bearing. | | |
#76482 04/18/2007 11:50 PM | Joined: Nov 2001 Posts: 1,517 'Bolter | | 'Bolter Joined: Nov 2001 Posts: 1,517 | Throwout bearing is my guess too. | | |
#76483 04/19/2007 12:09 AM | Joined: Jan 2006 Posts: 586 Shop Shark | | Shop Shark Joined: Jan 2006 Posts: 586 | Could also be the tin plate just in front of the flywheel held on by two tangs to the oil pan and two bolts to the bellhousing.If the plate jumped out of the oil pan lip it would make that noise when the clutch is depressed and the flywheel moves forward.Remove the plate and check for rubbing like it was put on a grinding wheel.
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#76484 04/19/2007 12:31 AM | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | While you have the plate off inspect the throwout bearing. It will probably be bumpy when you turn it by hand, indicating it is bad. | | |
#76486 04/19/2007 1:52 AM | Joined: Nov 2001 Posts: 1,517 'Bolter | | 'Bolter Joined: Nov 2001 Posts: 1,517 | That site pretty much sez it. | | |
#76487 04/19/2007 1:52 AM | Joined: Jan 2007 Posts: 172 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2007 Posts: 172 | 1965 Chevy C-30 1-Ton "Work like you don't need the money. Love like you've never been hurt. Dance like nobody's watching." | | |
#76488 04/19/2007 1:56 AM | Joined: Mar 2005 Posts: 1,029 Member | | Member Joined: Mar 2005 Posts: 1,029 | One other source of noise while disengaging the clutch is bad thrust bearings in the engine, allowing the harmonic balancer to rub when the crankshaft is pushed forward. This you would see if someone else does the clutching while you look. | | |
#76489 04/22/2007 4:04 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | That,s an informative link Surfer. I learned why they went to the Hi-cone fingers on the pressure plate. They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
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