One thing comes to mind. Check the freedom of flow of the fuel return line. One fuel line from the pressure reg returns excess pressure (fuel) to the tank. Disconnect that line from the reg, attach a couple foot piece of hose to the reg and put the other end in a gas can. Then check the pressure to see if it is now stable. If it changes at all there must be a restriction in the return system. Mark "Blake C. Thornton" wrote: > > > > > >I changed out my fuel pressure regulator and tried running again. It ran > > >better, but here is the wierd part, the fuel pressure quickly flucuated > > >between 28-40psi. I mean the needle on the gauge bounced so quickly > > >between 28 and 40 that it was a blur. Very wierd. Anyone ever see this? > > > > > >I guess the next thing to try is swapping out my temp sensor. Maybe I'll > > >give that try right now. My current temp sensor is only about a year old. > > > > > >Thanks for any help, > > >Blake > > >84 Westy > > > > Was the vacuum line connected, to the regulator, when testing the > > pressure? If not try disconnecting it and see if the pressure still > > bounces all over. > > I just tried this and its still bouncing all over the place. the only > difference with the vacuum disconnected is that the range is now higher > (its bouncing from 35-45 instead of 28-40). > > Also, I took out all my injectors while the fuel gauge read about 30psi > and watched. All the injectors stayed dry, no dripping. So, I am now > doubtful if there is one that is leaking (although I'm not 100 sure yet). > > Its still running rich and still sounds horrible. > > Thanks, > blake |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.