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  1. #1
    TheEngineer's Avatar
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    Would you consider these plugs to be 'fouled'?

    Just curious whether or not the plugs I just pulled out of my RXT would be considered fouled or not. There's anti-sieze on the threads.

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  2. #2
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    If anything... they look a bit hot (lean) to me, how old are they There is no real way of reading plugs on these things. When in question, or running shitty... replace them!

  3. #3
    Eric Ocman's Avatar
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    Try a set of the iridiums. I'm pretty happy with them.

  4. #4
    TheEngineer's Avatar
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    Quote Originally Posted by BigDaddyRXP View Post
    If anything... they look a bit hot (lean) to me, how old are they There is no real way of reading plugs on these things. When in question, or running shitty... replace them!
    They are about 10 hours old. I'm asking because I had a problem with my ski and took it to Barn*** St Pete only because I'm still under warranty. $250 later the only thing they tell me is that all of my plugs are fouled and misfiring, and they want to replace them and my oil for another $170.

  5. #5
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    If your under warranty... why are you spending $250

  6. #6
    dnielsen's Avatar
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    Quote Originally Posted by BigDaddyRXP View Post
    If anything... they look a bit hot (lean) to me, how old are they There is no real way of reading plugs on these things. When in question, or running shitty... replace them!
    Actually there is a way to read these but you'll need a microscope an a bit of knowledge to do. Had this same conversation with Mike Steele (Owner of Steele's Nitrous Shop) yesterday. We were discussing the ability to fine tune the maps on the Rude controllers, got on the topic of not being able to fine tune each injector independently but having to take AFRs across all three at the exaust through the O2 sensor. He was telling me how to read each plug with a microscope. He has patented nitrous systems through Edelbrock Racing (ES1 and ES2 seytems, the ES is short for Edelbrock/Steele).

  7. #7
    GarageX's Avatar
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    Do you read them down inside on the center of the the porcelain ?

  8. #8
    Eric Ocman's Avatar
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    Those plugs look like they were ran to lean/hot to me...

  9. #9
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Engineer dude ... what were the initial issues that you were having that made you take the ski to the dealer Details always help... to properly diagnosis the issue

  10. #10
    TheEngineer's Avatar
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    Quote Originally Posted by BigDaddyRXP View Post
    Engineer dude ... what were the initial issues that you were having that made you take the ski to the dealer Details always help... to properly diagnosis the issue
    Because they didn't find a defective "part", the inspection and diagnosis were not covered by warranty. Initial problem was a lower than normal, muffled, rumbling sound. Slight vibration, and not much speed with RPMs. My initial thought was to check the pump, but it was clear of foreign objects. Dealership claimed it was my spark plugs, but I am in doubt. If anything, I think my intercooler might have been clogged with something, and it somehow has now passed through.

    When you say running "lean/hot" what exactly does this mean? Sorry for the stupid question, my engineering skills are with computers.

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