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Date:         Mon, 20 Aug 2001 10:30:04 -0700
Reply-To:     "Scott G. Terry" <sgterry@ENGINEERING.UCSB.EDU>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         "Scott G. Terry" <sgterry@ENGINEERING.UCSB.EDU>
Subject:      Re: do we have a vacuum leak?
Content-Type: text/plain; charset="us-ascii"

Jay,

OK, 15" of vacuum at idle! Your Westy is now King/Queen of manifold vacuum until someone can top that. How many miles on your engine? Original valve guides?

This is in line with the result of my experiment that I posted last Thurs/Friday: in order for the fuel pressure regulator to give 28 psi at the fuel line test tee you need 15" manifold vacuum (1.9L engine).

I connected my gauge to the same place you did when measuring vacuum. Connecting the gauge to other locations didn't affect my measurements.

Scott Terry '85 Westy "Pearl" Santa Barbara, CA

>I am getting 15" at idle. I adjusted my valves over the weekend as per >Boston Bob's procedure. Excellent so far. Quiet valves and more power. >Also, cold starts are much improved. I backed off the adjusters to 0 lash, >and just tightened ~1/4 turn. I think most of the fuel pressure problems >are vacuum related. I would suggest replacing the FPR if it is still the >original piece (10 to 20 years old). I teed the vacuum guage in at the >distributor/FPR line. Is this where everyone is measuring it? > Jay '85 Westy


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