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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: CHUCK41 on May 12, 2016, 09:52:29 pm

Title: HYDRAULIC CLUTCH
Post by: CHUCK41 on May 12, 2016, 09:52:29 pm
 I have a 1987 GMC  V1500 350. 4speed Muncie SM465 transmission, it has a
 11 inch hydraulic clutch,  the flywheel, clutch disc, pressure plate, throw-out
 bearing, were new in 2011 the truck did not move with it`s engine until last
Monday May 9th I put on a new clutch master cylinder, slave cylinder and line.
I have one inch of travel on the slave cylinder rod.is that enough ? is there more
then one slave cylinder for this truck?    THANKS  CHUCK41 
        don`t know why half my post got lost   
 
Title: Re: NYDRAULIC CLUTCH
Post by: Irish_Alley on May 12, 2016, 10:21:20 pm
what are you asking? or telling?
Title: Re: NYDRAULIC CLUTCH
Post by: CHUCK41 on May 12, 2016, 11:08:43 pm
I`m telling you what  I have and what has been done and what is happening, and I appreciate
any help .        CHUCK41
Title: Re: NYDRAULIC CLUTCH
Post by: Blazin on May 13, 2016, 05:03:00 am
" I have a 1987 GMC  V1500 350. 4speed Muncie SM465 transmission, it has a
 11 inch hydraulic clutch,  the flywheel, clutch disc, pressure plate, throw-out
 bearing, were new in 2011 the truck did not move with it`s engine until last "

Okay?
This makes no sense as a question.
Is there a question hidden in here?
 
Title: Re: NYDRAULIC CLUTCH
Post by: roundhouse on May 13, 2016, 08:38:31 am
You Gotta finish the question


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Title: Re: NYDRAULIC CLUTCH
Post by: CHUCK41 on May 13, 2016, 09:03:54 am
 :-[What could be wrong? could I  have the wrong slave cylinder? is there more then one for this truck?  is one inch of travel enough for the rod on the slave cylinder?  THANKS CHUCK41
Title: Re: NYDRAULIC CLUTCH
Post by: zieg85 on May 13, 2016, 09:08:36 am
What is exactly the issue.  Does the clutch not press in enough to dis-engage? 
Title: Re: HYDRAULIC CLUTCH
Post by: CHUCK41 on May 13, 2016, 09:35:22 am
Is one inch of travel on the slave cylinder rod  enough to release the clutch?   CHUCK41
Title: Re: HYDRAULIC CLUTCH
Post by: roundhouse on May 14, 2016, 09:40:10 am
Should be


Is it not releasing ?
These are very hard to bleed but if you're seeing one inch of movement that should work


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Title: Re: HYDRAULIC CLUTCH
Post by: CHUCK41 on May 14, 2016, 07:45:57 pm
ROUNDHOUSE  THANK YOU

The clutch is not releasing, is there more then one slave cylinder for this truck? Last week I put
on a new clutch master cylinder, slave cylinder and line. The pressure plate, disc and throw-out
bearing were bought sometime between 2001 and 2011, when the engine was put back in the
truck. Last Monday was the first time it moved  by it`s engine sjnce  2001. I don`t   know if
any of the clutch parts are right. I`m thinking of pulling the engine and putting in a new clutch.
                                            THANK KOU   CHUCK41
Title: Re: HYDRAULIC CLUTCH
Post by: 1967KaiserM715 on May 14, 2016, 10:25:57 pm
Is the fork seated all the way, and did you make sure the throwout bearing was properly installed?


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Title: Re: HYDRAULIC CLUTCH
Post by: CHUCK41 on May 15, 2016, 10:59:51 am
1967KaiserM715  THANK YOU
 It`s put together right but I don`t know if the clutch parts are right, and I don`t know if I
have the right clutch fork, ball stud or throw-out bearing.  It`s been apart so long I`m not sure any of the parts are right. I think the only thing I can do now is pull it down and put in what I know are the new right parts.
                       THANK  YOU   CHUCK41
Title: Re: HYDRAULIC CLUTCH
Post by: 1967KaiserM715 on May 15, 2016, 12:40:14 pm
I know when I threw my bellhousing on the fork felt weird (new fork and ball stud), turns out one of the spring clips that goes around the stud wasn't seated right, giving a lot of play in the fork, without putting pressure to the clutch

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Title: Re: HYDRAULIC CLUTCH
Post by: CHUCK41 on May 15, 2016, 04:10:28 pm
1967KaiserM715 THANK YOU
 I`ll check that,  it will be the next thing I do            THANKS AGAIN  CHUCK41
Title: Re: HYDRAULIC CLUTCH
Post by: VileZambonie on May 15, 2016, 06:26:09 pm
Sounds like you have air in the system.
Title: HYDRAULIC CLUTCH
Post by: roundhouse on May 15, 2016, 11:00:39 pm
The only way we could get all the air out was to disconnect the Hose from the reservoir to the master and use a hand held vacuum pump to pull the air out backwards

Bleeding it like the brakes just didn't work


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Title: Re: HYDRAULIC CLUTCH
Post by: CHUCK41 on May 23, 2016, 09:08:24 pm
 roundhouse
 I may be able to get a vacuum pump, what did you hook the pump to?
The clutch fork must have a weak or broken retainer and or a bad ball stud
the fork will not stay on, I`LL replace both     THANK  YOU     CHUCK41
Title: HYDRAULIC CLUTCH UPDATE
Post by: CHUCK41 on June 16, 2016, 12:09:33 pm
 1987 GMC V1500 4X4, 350 SM465 MANUAL TRANS.
 I said in a earlier post I was thinking  about pulling the engine to see what throw out bearing
was in there, I didn`t remember if it was a 1.1/4 inch or a 1.7/8 inch bearing, it turned everything was
 wrong, just another of a dozen or more things the previous owner brought that have cost
me many hours trying to make things right. I put in a 12 inch bent finger diaphragm clutch with
the 1.1/4 throw out bearing and it is working fine. I have the truck so it can be moved when
needed so the next thing is to find a good body man.      THANKS  CHUCK41