All after is true. Also bad gas (low octane) is equally important. anything
below 95/97 deisels in my car too.
OK
Use a coloure tune to check the carbs.
Check the compression for carbon (highly unreliable) and,
I have found that if you pour water into the carbs at 2500 to 3000 rpm in a
hot engine you can "dislodge" enough of the carbon to reduce the problem.
There are some risks to doing this which I hope others will describe. And
this is not a recommendation (disclaimers apply) But I've used it on my
wife's ford (163,000) mi. (I'd never let this happen to MY car!)
_______________________________
>>so,
>>
>>what causes a motor to run on or "diesel"?
>>how to stop it?
>>could my motor actually spin backwards?
>>
>>thanks,
>>
>>kbt
>
>often, there is excessive carbon on head/pistons, may act like "glow plug"
>and stay hot and also raises compression ratio (since it reduces effective
>combustion chamber size), thereby raising the temperature of the fuel/air
>charge enough at the end of compression stroke (remember the ideal gas
>equation, Charles' law, etc.) to ignite without spark, just like a real
>diesel- a clue is cylinder pressures that are too high (probably *much*
>higher than 160-170)- you may have to pull the head, please keep us
>informed
>joe
>
>
>
>Joseph R Schneider, MD, PhD
>Assistant Professor of Surgery, Northwestern University Medical School
>100 Burch, Evanston Hospital, 2650 Ridge Ave, Evanston, IL 60201
>voice: (708) 570-2565 fax: (708) 570-2899 e-mail: joe-schneider@nwu.edu
>
>"We don't need no stinkin' UNIX" (attributed to j-norstad@nwu.edu)
>
>
>
>
|