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Problem bleeding clutch

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Old Sep 6, 2015 | 08:29 PM
  #1  
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Problem bleeding clutch

So after i got the 5 speed swapped in, i tried to bleed the clutch, im using a resevoir off of a gas truck (No difference) and the line and slave off of an 87. i switched the fitting on the line so it fits the master correctly. anyways, ive tried to bleed it for about 2 hours but couldnt get it, tried every way i read on the internet. Anybody have suggestions on what i could do? i didnt have a diaphragm in the resevoir while bleeding it, just left the cap off. does that matter? i bled the clutch on a 1988 dodge dakota and it wasnt at all this much of a pain in the ***..
 
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Old Sep 6, 2015 | 10:05 PM
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Originally Posted by lkfldredneck
So after i got the 5 speed swapped in, i tried to bleed the clutch, im using a resevoir off of a gas truck (No difference) and the line and slave off of an 87. i switched the fitting on the line so it fits the master correctly. anyways, ive tried to bleed it for about 2 hours but couldnt get it, tried every way i read on the internet. Anybody have suggestions on what i could do? i didnt have a diaphragm in the resevoir while bleeding it, just left the cap off. does that matter? i bled the clutch on a 1988 dodge dakota and it wasnt at all this much of a pain in the ***..
On brakes its the master that introduces air .
 
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Old Sep 6, 2015 | 10:15 PM
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Gravity bleed then pressure bleed. Pump the pedal until the fork starts to move.you can't one pump then bleed like brakes.the master moves very little volume.
 
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Old Sep 6, 2015 | 11:33 PM
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I have never heard of one pump for brakes . . If it is introducing air in this very small system , ( 2 hours ) the master is bad .
 
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Old Sep 7, 2015 | 07:16 AM
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The way I've always bled hyd. clutch systems was to leave the slave unattached from the bell housing, fill the reservoir partially, push the plunger in the slave with the rod straight down. Let it gravity fill keeping the reservoir full. Do this a few times and all air should be out of the system.
 
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Old Sep 7, 2015 | 08:41 AM
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Originally Posted by Action4478
I have never heard of one pump for brakes . . If it is introducing air in this very small system , ( 2 hours ) the master is bad .
Just on brakes where the master can supply enough fluid to bleed each time whereas the clutch it takes multiple pumps just to refill the slave.

Im not sure if im expressing this in words like i need to.
 
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Old Sep 7, 2015 | 09:28 AM
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We've never, ever, ever, ever, had any luck bleeding a clutch system.
Do yourself a huge favor and go buy the one piece unit (master, line, slave all hooked up and ready to go) from NAPA for like $250 or whatever.
You'll be glad you did.
 
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Old Sep 7, 2015 | 09:31 AM
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So if i gravity bleed it, i should depress the slave all the way, crack the bleeder and let it bleed it for how long?
 
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Old Sep 7, 2015 | 09:32 AM
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Originally Posted by DZL JIM
We've never, ever, ever, ever, had any luck bleeding a clutch system.
Do yourself a huge favor and go buy the one piece unit (master, line, slave all hooked up and ready to go) from NAPA for like $250 or whatever.
You'll be glad you did.
The only problem with that is, its Labour day, and this is my only truck i have. and i need to get to work tomorrow..
 
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Old Sep 7, 2015 | 09:58 AM
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Originally Posted by lkfldredneck
So if i gravity bleed it, i should depress the slave all the way, crack the bleeder and let it bleed it for how long?
The way I posted you don't have to open the bleeder, you'll be pushing the air back up the line to the master each time you push the slave plunger in.
 
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Old Sep 7, 2015 | 01:16 PM
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Originally Posted by mechmagcn
The way I posted you don't have to open the bleeder, you'll be pushing the air back up the line to the master each time you push the slave plunger in.
I think i might have figured it out. we have no bubbles comin through after bleeding it, but the one thing thats completely wrong for the truck is the master cylinder is off of a gas truck. smaller bore. im guessing. and hoping
 
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Old Sep 7, 2015 | 05:33 PM
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Is the master from a 460 truck or a smallblock? I didn't check part numbers, but that would be the only difference, 460 and diesel clutch setups are identical.
The method I have the most luck with is to get under the truck and compress the slave completely by pushing on the release fork about 10-12 times. If this does not work, you have a volume issue.
 
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