cunferferth Posted November 22, 2010 Share Posted November 22, 2010 Hey all. I recently bought my old Comanche back..need to limp it home. My question is that the brake booster is leaking and the brakes are very poor. Is it possible to plug the vacuum line and run it similar to manual brakes? I need to get it home, thanks! Link to comment Share on other sites More sharing options...
bobby m Posted November 23, 2010 Share Posted November 23, 2010 yes possible, not safe but possible. if the diaphram in the booster is bad then you'll just have harder to push bad brakes. Link to comment Share on other sites More sharing options...
cunferferth Posted November 23, 2010 Author Share Posted November 23, 2010 yea its the diaphram thats bad. Not running the brakes are good and stiff with no pedal travel, once started the pedal drops to the floor, i can quickly pump up the brakes but being the diaphram is busted its constantly pulling vacuum and the engine wants to die. If not plugging the line completely maybe kinking it so less vacuum gets pulled might do the trick? Link to comment Share on other sites More sharing options...
Incommando Posted November 23, 2010 Share Posted November 23, 2010 It may stop the vacuum issue but the brake pedal would still be rock hard. The only cure is a swap to a manual m/c set-up or replacing what you have now,IIRC. Is there any evidence of a fluid leak? Maybe leaking back into the booster(which would have eaten the diaphragm)? The lack of a booster would make the pedal hard, but the pedal slowly going to the floor is usually the fluid bypassing the piston in my limited experience. Link to comment Share on other sites More sharing options...
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