From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [LML] Mechanical Fuel Pump Failure?
To: lml
Date: Sun, 10 Oct 2004 19:48:19 -0400
Message-ID: <web-459783@logan.com>
In-Reply-To: <6a.46faf4f3.2e9b1258@aol.com>
References: <6a.46faf4f3.2e9b1258@aol.com>
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Posted for Tubamanflies@aol.com:

  Larry,
  
  I don't think you are looking at a mechnical problem with the engine driven
  pump.  I had the same problem.  Good pressure that would drop off.  Boost
would
  help.  Replaced engine pump and good for a while and then same problem.
  Pulled injectors and tested flow and found air comming in from the boost 
pump
  seal, it was a Dukes.  Replaced boost pump, air went away and the "bad"
engine
  pump was no longer bad.
  
  Check your boost pump for seal leakage.  I bet you don't have a header tank.
  But even if you do it could still be the problem.  If you don't want to pull
  the injector lines get a long clear plastic tube and run from the engine 
pump
  discharge back to the tank and run the boost and look for air.
  
  I think you may find some.  Check the archive searching for "Dukes".
  
  Ray Gardner