Purging air - huh?

[Toby Erkson <Toby_Erkson@ccm2.hf.intel.com>]

How does pumping the pedal, with only the fuel pump running, purge the fuel 
lines of air?  I know running the fuel pump will pressurize the system, so 
please don't explain that part.  All the pedal does is turn a dial on the 
intake manifold.  This would make sense on a carbed engine, however.
     Toby Erkson
     air_cooled_nut@pobox.com
     '72 VW Squareback 1.6L modified to 2.0L
     '75 Porsche 914 stock 1.8L


______________________________ Reply Separator _________________________________
Subject: Cold Start Systems
Author:  type-3-errors@umich.edu at SMTPGATE
Date:    1/15/97 8:16 PM


...
I have one car that has a very bad problem with this.  On this one only, I
have installed a momentary contact switch which I can depress to run the
pump without running the starter.  If I do this for 10 seconds and pump the
pedal the pump will clear the air out of the lines and the car will start
easily.

NOTE:  for very important safety reasons you should not be tempted to just
wire in a permanent switch that is not momentary.  Do not disable the fuel
pump relay.  This could be a matter of life or death.

Jim
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       Melissa Kepner                                    Jim Adney
       jadney@vwtype3.org              jadney@vwtype3.org
                             Laura Kepner-Adney
                             Madison, Wisconsin
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