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| | | | Joined: Jan 2009 Posts: 38 New Guy | | New Guy Joined: Jan 2009 Posts: 38 | I got the old 51 GMC running today. Had it idling for about 20 minutes. For some reason the clutch is not releasing. I checked all the linkages and everything is hooked up. I can watch the clutch fork move when I press the pedal. I am guessing maybe the clutch is rusted to the flywheel. Am I close? And is there an easy fix that doesn't require taking out the engine and trans? | | | | | Joined: Jul 2006 Posts: 79 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2006 Posts: 79 | If you have the 216 or 235 there is an inspection plate on top of the bellhousing that you can remove and see what the problem is.
Bluedawg
Bluedawg
God fearing, Gun toting, Constitution loving extremist.
| | | | | Joined: Jan 2009 Posts: 38 New Guy | | New Guy Joined: Jan 2009 Posts: 38 | It is the original GMC engine. | | | | | Joined: Jul 2006 Posts: 79 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2006 Posts: 79 | I think you'll have the same inspection point. Its a plate on top of the bellhousing, about 2 in. x 4 in., held in place with two screws.
Bluedawg
Bluedawg
God fearing, Gun toting, Constitution loving extremist.
| | | | | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | You got brakes? If so, put in gear and slam the pedal in and out until she lets go. If not, push the pedal to the floor and hold it there with a board and crawl under it and try prying it loose with a heavy duty gasket scraper,
Scott | | | | | Joined: Sep 2007 Posts: 154 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2007 Posts: 154 | I agree with Extreme Gabster. With lots of room or road & with a good set of brakes put the machine in as high of a gear as possible. ( you will need to start in low gear & shift up if possible ) With the clutch peddle engaged, then hammer the brake peddle hard many times. Lots of punishment and you stand a good chance of the clutch breaking loose of the fly wheel. If this fails you may need to take the unit apart.
I also did the same thing with the rear tires blocked off the ground. Make sure the blocking is solid. Either way you need to give the brakes a lot of punishment. Hit then hard and as fast as you can. ( bam, bam, bam ) | | | | | Joined: Sep 2007 Posts: 154 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2007 Posts: 154 | I agree with Extreme Gabster. With lots of room or road & with a good set of brakes put the machine in as high of a gear as possible. ( you will need to start in low gear & shift up if possible ) With the clutch peddle engaged, then hammer the brake peddle hard many times. Lots of punishment and you stand a good chance of the clutch breaking loose of the fly wheel. If this fails you may need to take the unit apart.
I also did the same thing with the rear tires blocked off the ground. Make sure the blocking is solid. Either way you need to give the brakes a lot of punishment. Hit then hard and as fast as you can. ( bam, bam, bam ) | | | | | Joined: Sep 2007 Posts: 154 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2007 Posts: 154 | I agree with Extreme Gabster. With lots of room or road & with a good set of brakes put the machine in as high of a gear as possible. ( you will need to start in low gear & shift up if possible ) With the clutch peddle engaged, then hammer the brake peddle hard many times. Lots of punishment and you stand a good chance of the clutch breaking loose of the fly wheel. If this fails you may need to take the unit apart.
I also did the same thing with the rear tires blocked off the ground. Make sure the blocking is solid. Either way you need to give the brakes a lot of punishment. Hit then hard and as fast as you can. ( bam, bam, bam ) | | | | | Joined: Jan 2009 Posts: 38 New Guy | | New Guy Joined: Jan 2009 Posts: 38 | The brakes don't work  I guess I'll have to fix them. | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Prop the pedal down like 48 says & put it in high gear. Rock the truck back & forth. You will want to be on level ground & put some blocks spaced apart, as it will start rolling when or if it comes loose.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Sep 2007 Posts: 154 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2007 Posts: 154 | How about an up-date. How are you doing ?? | | |
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