Re: preignition? or what do you call that?(forgot)

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

The condition you are experiencing is called "dieseling".  That means the 
gasoline fuel mixture is still being ignited even though there is no spark 
being produced to fire it -- similar to how a diesel engine works, thus the 
term.  Generally in a gasoline engine when this happens it means there's 
something wrong.  Unfortunately I can't remember some of the conditions 
that cause this, though the fuel cutoff solenoids help stop the dieseling.  
I have dual Dellortos with no fuel cutoff solenoids and I don't have a 
dieseling problem (never had one with these carbs but that is just 
coincidental as there are those who have the same carbs and have 
experienced dieseling on a stock engine).
     Toby Erkson
     air_cooled_nut@pobox.com
     '72 VW Squareback 1.6L bored and stroked to 2.0L
     '75 Porsche 914 stock 1.8L for sale


______________________________ Reply Separator _________________________________
Subject: preignition? or what do you call that?(forgot)
Author:  type-3-errors@umich.edu at SMTPGATE
Date:    3/25/97 9:04 PM

When you turn off the key after driving, and the car keeps
chugga chuggin for a few seconds, that is a symptom of what?
This is a '66 type3, 1600 with dual carbs.  I believe the
valves are correct.
...