[DeTomaso] Asa Jay's 1985 built 351C Forensics

[Asa Jay Laughton]

Hmm, interesting hypothesis.  Unfortunately, the only thing left from 
that possibility is the spark plug itself.  The cap, rotor and plug 
wires were all replaced with the new engine that went in.  However, I'll 
give the plug a good once over.

:)
Asa Jay

Asa Jay Laughton, MSgt, USAFR, Retired
&  Shelley Marie
Spokane, WA
******************************
http://www.racingagainstautism.com
http://www.teampanteraracing.com


On 11/27/2010 09:29, MikeLDrew at aol.com wrote:
> The 289 in my Mustang exhibited the same symptoms once, due simply to a
> plug not firing for some reason.   I believe it fired occasionally at best; it
> never idled smoothly.   The fact that it fired *sometimes* made it extremely
> difficult to diagnose.   The motor vibrated enough to break the air cleaner
> hold-down stud flush with the top of the carburetor; it was then suspended
> precariously above the carburetor for unknown miles until the wing nut
> unthreaded itself, and it dropped into the carb, through the #8 intake port and
> became intimate with the piston.   Mad Dog was riding with me at the time--I
> blame him!
>
> When I pulled the engine apart, the damage from the offending air cleaner
> stud was evident in #8, but what was surprising was the carbon buildup (much
> like yours) in an adjacent cylinder.
>
> I rebuilt the engine with the help of Gary Roys, and when equipped with new
> plugs, wires and cap and rotor, the thing ran perfectly.
>
> Mike