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nybugguy
Samba Member
Joined: September 21, 2008
Posts: 117
Location: Upstate New York
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 Posted: Tue Jul 21, 2009 7:34 pm Post subject: need help with master cylinder.... |
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| I have a fiberglass buggy on a 1974 shortened pan. My problem is trying to get the new wheel cylinders bled.I have tried numerous times to bleed them and I can only get the right front to pump up. The rest just drip out a couple times and that's it. Is it possible for just one wheel to bleed correctly and the other 3 not? Should I just go with a new master and hope that cures the problem. Could there be something plugging up inside the master or some kind of plunger problem?Thought I would consult the experts before buying a new master cylinder. Thanks!! |
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nightmanx11
Samba Member
Joined: November 15, 2007
Posts: 549
Location: Downstate Illinois
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| Posted: Tue Jul 21, 2009 8:03 pm Post subject: |
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Are you able to open the bleed screws on each wheel cylinder?
Have you verified that the flex lines are good? Sometimes when they go bad they collapse internally & block the flex line |
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BL3Manx
Samba Member
Joined: August 29, 2006
Posts: 6767
Location: Northern California
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| Posted: Tue Jul 21, 2009 8:28 pm Post subject: |
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| nightmanx11 wrote: |
| Sometimes when they go bad they collapse internally & block the flex line |
X2
Replace all the flex hoses. |
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nybugguy
Samba Member
Joined: September 21, 2008
Posts: 117
Location: Upstate New York
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| Posted: Wed Jul 22, 2009 5:17 am Post subject: |
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| I have replaced my resv. with a rabbit resv. so I got rid of the flex hoses to the master cylinder.I can operate the bleeders on all the wheel cylinders just fine. Do you think it is just a crappy master? If only one wheel will bleed after numerous attempts I think that is my next step.What do you guys think? |
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dan macmillan
Samba Member
Joined: October 19, 2003
Posts: 3110
Location: Northern Ontario, Canada
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| Posted: Wed Jul 22, 2009 6:26 am Post subject: |
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| nybugguy wrote: |
| I have replaced my resv. with a rabbit resv. so I got rid of the flex hoses to the master cylinder.I can operate the bleeders on all the wheel cylinders just fine. Do you think it is just a crappy master? If only one wheel will bleed after numerous attempts I think that is my next step.What do you guys think? |
They are referring to the flex hoses that lead to the 2 front wheels and the 2 at the rear alongside the frame horns to the rear wheels.
_________________
Licensed Automotive Service Technician
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66 Modified Manx,68 Kyote,74 Thing,74 Beetle, 76 Transporter,75 self made Double Cab,65 Meyers Manx,78Westy,68 Ghia, 79 Bradley GT2
Current projects:
Built for others:69 Manx Clone |
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Glasser
Samba Member
Joined: September 18, 2007
Posts: 1640
Location: Calgary Alberta Canada
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LeeVW
Samba Member
Joined: June 14, 2006
Posts: 1016
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| Posted: Wed Jul 22, 2009 8:46 am Post subject: |
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Before you start bleeding the wheel cylinders, tighten all the brake shoe adjusters on that circuit as far as they will go. This will put the shoes right up against the drums and all of the pedal action will go towards pushing fluid out the bleeder. Don't forget to back the adjusters off when you are done!
Oh, and yes, replacing the flex hoses is cheap insurance. They can fail in ways that don't make sense!
Lee |
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