Re: New NGK Plugs Installed

From: Bernd D. Ratsch (bernd@dodgetrucks.org)
Date: Fri May 25 2007 - 00:19:59 EDT


How in the world are you cracking the coils on removal? I've taken out
hundreds and have never cracked one yet.

- Bernd

Jon Smith wrote:
>
> 122k :-O !!!!!
> Our 02 KJ w/ 3.7 was pushing the gaps to 0.065" after 30k miles.
> Typical wear from what I see on the 3.7/4.7. Like Bernd said, 45thou
> is nothin to worry about. I had logged approx. 1-2mpg difference in
> plug refreshing though, so for the whopping $12 in spark plugs, I
> wouldn't bat an eye over changing them ~ every 6mo. (of course Melissa
> is logging about 39k/yr).
> Good thing you greased the coils Kyle, I've cracked more than a few
> coils coming out of 4.7s w/ 50-60k on them. Seems like it doesn't
> take a whole lot to split the case..... but perhaps it's that 4ft
> prybar I'm using to persuade the coilpacks out of their holes???? =)
>
> -Jon Smith
>
>>
>> 16K miles and .045" isn't anything to be worried about.....you should
>> see the plugs at 38-40K when I have to change them due to misfires
>> and rough running issues. ;) Yes, i've actually had one customer
>> come in with 122K miles on the original plugs - gap was opened up to
>> .080"...and it still ran.
>> - Bernd
>>
>> Kyle Kozubal wrote:
>>
>>
>
>
>
>



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