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Old July 27th, 2013, 08:58 PM
David R Leifheit's Avatar
David R Leifheit David R Leifheit is offline
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Join Date: Jan 2013
Location: Dallas, Oregon
Truck: 1960-1966 1000-4000 series
Age: 62
Posts: 281
Rep Power: 166
David R Leifheit is a jewel in the roughDavid R Leifheit is a jewel in the roughDavid R Leifheit is a jewel in the rough
Default Re: Problem with clutch disengaging

Quote:
Originally Posted by Clarke View Post
Update:

I believe it's a hydraulic issue... When reviewing the service manual, appears I'm supposed to have a "fluid damper valve" installed between the slave cylinder and clutch line (1500 Series with SM420)? Does anyone else have this on their truck? Is it possible this can be the issue, or add to it?
Just curious, what service manual are you using?
You should have the X-6223 manual.
1000-5000 series trucks.

http://www.oeltd.net/doc/GMC_Manuals...6223-5-299.jpg
through
http://www.oeltd.net/doc/GMC_Manuals...6223-5-309.jpg
Are scans of the clutch section of the manual.
Or you can just go here:
http://www.oeltd.net/doc/GMC_Manuals/X-6223/
To see which sections I already scanned in out of the manual.

Each scan is numbered by the manual-section-page

http://www.oeltd.net/doc/manual.htm
The manuals list, ones I own and as well as an overview of all the manuals for the 60-66 trucks. Any that I have scanned in any pages for will have a link. For clarity purposes, any manuals listed in italics are ones I do _not_ own but have found referenced in other manuals or have seen for sale.
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- David R Leifheit
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(2) 1961 1500
1962 1000
1963 2500
1963 4000
1964 2500

Last edited by David R Leifheit; July 27th, 2013 at 09:02 PM. Reason: forgot link to manuals.
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