Vacuum Bleed Clutch?
Thread Starter
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New User
Joined: Apr 2008
Posts: 23
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From: Laceyville, PA
Vacuum Bleed Clutch?
I was just wondering if anyone has every tried to use a vacuum bleeder for bleeding out their clutch. I have the ZF in my 90 f250 with the 5.0. I replaced the clutch line, slave cylinder, and clutch. Now I gotta get the air bled out, and I don't feel like having it take forever. I was wondering if a) it will work b)if you think it's gonna be the quickest/easiest way? 
Thanks in advance for your help
Thanks in advance for your help
Post Fiend
Joined: Jan 2005
Posts: 8,402
Likes: 10
Is it an external slave cylinder? If so then your best bet, as far as I can see, is to pump up the pedal as best you can, get under with a pry bar and push the cylinder piston back in as far as you can. Do this three or four times and you should be good to go. Having said that I knew a guy a few years ago who tried everything to bleed the clutch in an old John Deere combine harvester and the only thing that worked was a vacuum bleed kit.
Thread Starter
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New User
Joined: Apr 2008
Posts: 23
Likes: 0
From: Laceyville, PA
It is in internal slave cylinder. What I am thinking is, unhook the line up top from the master cylinder. Than hook the vacuum pump up to the line, than at the bleeder put a fitting over the bleeder with a hose attatched to it that will go down into a bottle of brake fluid. THan I will be pull the brake fluid up through the slave and through the line up into the vac pump. Since the air is naturally going to want to go up, I thought that this might be the best way to go.
Post Fiend
Joined: Jan 2005
Posts: 8,402
Likes: 10
It is in internal slave cylinder. What I am thinking is, unhook the line up top from the master cylinder. Than hook the vacuum pump up to the line, than at the bleeder put a fitting over the bleeder with a hose attatched to it that will go down into a bottle of brake fluid. THan I will be pull the brake fluid up through the slave and through the line up into the vac pump. Since the air is naturally going to want to go up, I thought that this might be the best way to go.
