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Old 11-10-2009
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4.0 spark plug gap

Probably been hashed out plenty, but I don't have time to search right now. Hoping someone can post up before I get home. Manual says .061 - .068, seems like a big range of choices there. Thought about .065 just to split the difference, what do you all gap to?
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Old 11-10-2009
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even if you dont have time to use the search button use it anyway
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Old 11-10-2009
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even if you can't say anything nice or even help, go ahead and be rude. wow...stern words coming from someone who just joined last week...




JT...even the radiator core support says 61-68 thou. I shoot for 65 thou when I throw plugs in it.
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Old 11-10-2009
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Thanks for the scolding you handed out, it saved me the time.
As for the .065 I figured that middle of the road would be the best option.
....... CHEVY GUY (I'd be in a Ranger forum too?!).
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Old 11-10-2009
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Im sorry fella's, and yes it is sad that I have to be here instead of a chevy forum, the bowties just ain't cutting it any more
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Old 11-10-2009
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.061 to .068 isnt really that large of a range if you think about it, thats the thickness of two sheets of paper approx, i go .065 as well
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Old 11-10-2009
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No prob Chevy, just friendly ball smashing. Glad to see you've seen the light.
Can you guru's tell me what is the difference to expect from the low end to the high end? Sorry to keep kicking this horse, but I'm still learning this Ranger. I'm trying to keep her running her best.
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Old 11-16-2009
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.065 is fine--thats what I use, besides, better Dead than Chevy I always say.
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Old 11-17-2009
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Quote:
Originally Posted by Toreador4x4 View Post
.061 to .068 isnt really that large of a range if you think about it, thats the thickness of two sheets of paper approx, i go .065 as well
um i think i rember it being .050 -.055 and just for the record a piece of paper is around .003
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Old 11-21-2009
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skyway is right..... With a coil pack you can open it to 0.65 otherwise if you're on a stock coil do 0.55
Edit: wait what? Why does my doc for my screamin deamon pack say open to 0.65? Should I open them to 0.75?

Last edited by Ranger093; 11-21-2009 at 12:24 PM.
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