Re: Back to the Intake Backfiring - #$%#$%ing car

[Barry Schwartz <bschwart@pacbell.net>]

There are only about three BASIC things that will cause a backfire, that is
actual burning of the mixture in the intake tract.  A really lean mixture
can cause it, Incorrect timing of some type, be it misadjusted points (too
small a gap) if not electronic or timing that is erratic or firing at the
wrong time, or a burned otherwise wrong opening (sticking, bent?) intake
valve allowing the hot mixture to continue burning in the intake manifold
- something is igniting the fuel in your intake manifold -


Barry Schwartz (San Diego) bschwart@pacbell.net