Sinking brake pedal without fluid loss is bad check valves or ports in the master cylinder. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Helmut Blong Sent: Thursday, September 14, 2006 9:33 PM To: vanagon@GERRY.VANAGON.COM Subject: Vacuum pump Thanks very much. Since your clever like that, what do you think is the most common cause for a sinking brake pedal? I figure vacuum as I am not losing brake fluid anywhere. It's a long run from engine to brake servo and I'd love to be able to narrow it down to common fault locations in that vacuum line. cheers, mordo ---------- Forwarded message ---------- From: Doug <vanagons@cox.net> Date: Sep 14, 2006 9:27 PM Subject: Re: Vacuum pump To: Helmut Blong <helmut.blong@gmail.com> Helmut, Yes, pump is for CC only, just follow the hose over to either the accumulator or actuator. Yes, vacuum from engine is ported through a one-way valve directly to the power brake servo. Good hunting, Doug in CT
Helmut Blong wrote: > So, my search of Bentley and the archives seems to bear out that the > vacuum > pump is exclusively for the cruise control on my 90 Carat but I would > like > it if someone on list would confirm this. > > Ken Wilford's excellent posts on CC repair will be helpful when I finally > tackle that beast. > > Power brake servo uses engine vacuum exclusively? > > cheers, > > mordo > |
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