[DeTomaso] Spark plug question

[adin at frontier.net]

Xmas list for Asa jay:

Penzoil
Platinum plugs


The plat plugs "might" not foul if you drive the car, IMO.



Quoting asajay at asajay.com:

> I HATE PLATINUM plugs in a 351C.  Tried them once, NEVER again.  Ran
> GREAT for a little while... six months later, performance was
> suffering badly.  Changed to NGK UR4 and never looked back.
>
> Platinum (for me) just don't see to be a good choice for a big old
> fashioned iron V8 like the 351C.  I would pull them and toss them
> about as far as I could chuck them.
>
> Now with that said, some of the plugs look fine, but one or two look
> like you are getting some oil fouling.  That could be rings, valve
> stem seals... OR simply poor plug performance allowing more oil to get
> into the cylinder by not firing well enough to properly pressurize the
> cylinder.
>
> Did I mention I HATE platinum plugs?
>
> Asa Jay
> (AC Delco, Bosch, Champion and anything else except Autolite or NGK
> will not work in a 351C)
>
> Quoting Brent Stewart <bjbstewart at yahoo.com>:
>
>> All,
>>
>> I changed mu plugs for the first time in a year and didn't think
>> much of it. It was my first change since owning the car, and I was
>> actually surprised at how easy it was. The previous owner said that
>> he had just changed them before I purchased the car. I wasn't
>> changing for any particular reason other than I was doing annual
>> maintenance and figured I should before Reno.  I replaced them with
>> what was currently installed - Autolite Double Platinum APP 25's.
>>
>> Upon taking it out for a quick test drive, i was REALLY surprised at
>>  how much more powerful and, well, quick it was! Throttle response
>> was much better, acceleration was more than noticeably better. While
>>  initially excited about my findings, I soon began to try and
>> understand why this would have had such a big impact.
>>
>> Here are my questions.  I went back to study the plugs I had
>> removed. One thing I was immediately bothered by was the amount of
>> oil around the threads. I don't recall that as being normal.  I
>> don't have leaks, and the engine certainly doesn't smoke, but it is
>> an internally stock engine with 72k miles.  Also, how do the plugs
>> look?  There seems to be a lot of build up around the base of the
>> plug, but he tip looks clean?  Take a look at the pictures and let
>> me know what you think.  Appreciate any feedback!
>>
>> Single plug:
>> http://tinyurl.com/cxsalk
>>
>> Several other picts:
>> http://tinyurl.com/d5rguw
>>
>> Thanks!
>> brent
>> _______________________________________________
>>
>> Detomaso Forum Managed by POCA
>>
>> Archive Search Engine Now Available at http://www.realbig.com/detomaso/
>>
>> DeTomaso mailing list
>> DeTomaso at list.realbig.com
>> http://list.realbig.com/mailman/listinfo/detomaso
>>
>
>
> _______________________________________________
>
> Detomaso Forum Managed by POCA
>
> Archive Search Engine Now Available at http://www.realbig.com/detomaso/
>
> DeTomaso mailing list
> DeTomaso at list.realbig.com
> http://list.realbig.com/mailman/listinfo/detomaso
>