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Date:         Sat, 11 Aug 2001 19:20:10 EDT
Reply-To:     FrankGRUN@AOL.COM
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Frank Grunthaner <FrankGRUN@AOL.COM>
Subject:      Re: Boston Bob Engine - Follow Up
Comments: To: mike_l_f@hotmail.com
Content-Type: text/plain; charset="US-ASCII"


In a message dated 8/11/01 9:53:30 AM, mike_l_f@HOTMAIL.COM writes:


<< At about 3000 miles on the new engine, we just had a chance to re-measure
the vacuum, fuel pressure and compression.


Fuel Pressure at idle - 34 Connected  38-39 Disconnected


Engine Vacuum at idle - 10 >>


Gentlemen,


There seems to be something wrong here. While I am, fortunately, very
uninformed as regards the water boxer engine, this idle vacuum level seems
dangerously low. On my 8V 1.8L inline 4 (RV) Digifant engine, I maintain an
idle speed of 700 rpm and hold a sea level vacuum of 17 to 18 inches. Never
saw a vehicle with proper valve and ignition timing draw less than 15 inches
at sea level.


Just a comment for what it may be worth.


Frank Grunthaner
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