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Re: 69 MG pre-ignition

To: ek_john_luthy <luthy@cesd.servtech.com>
Subject: Re: 69 MG pre-ignition
From: Larry Hoy <73253.1136@CompuServe.COM>
Date: 14 Sep 96 20:48:06 EDT
Lex,

I have had a lot of input on this situation.  In general most feedback seems to
confirm your comment,
my car is idling too fast.  It appears that I need to do a little timing and
carburator adjustment so it will idle a little slower.

 
> you can take the distributer out and 
> throw it across the street and your engine would still run-on!!

Tried that  ;-)



>I know that it sounds too simple <

The simplier the better.

Thanks,

Larry
1969 MGB
Denver Co

==========================================================
> > 
>  I hope that you are the person with the run-on problem ... not one of 
> the replys..
>   A Gasoline engine that continues to run after the ignition is turned 
> off is considered a Disel (temporay status) there is NO source of spark 
> the only source of ignition is heat, you can take the distributer out and 
> throw it across the street and your engine would still run-on!!
>  The most common cause of this is a high idle speed (over 900 rpm). Many 
> auto makers know this also and they have incorated in to the carburators 
> many differnt ways to stop the flow of fuel to the engine after the key 
> is turned off. Some enginers have designed a fuel shut off in to the 
> carb. that stops the flow of fuel to the engine, and others have designed 
> a solonid that allows the throtle blade to close a bit more after the key 
> is turned off. 
>  Of course you can not be expected to redisgn your fuel dilevery system 
> but you can make sure that every thing is in working order and the idle 
> speed is not to high. 
>  I know that it sounds too simple but trust me. I have had 25 years 
> experance reparing autos. and with out fail, every time, run-on can be 
> cured by lowering the idle speed.
> 
>               Lex 
> 


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