496 Plugs?
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Join Date: Jan 2004
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Our recommendation on platinum tipped plugs in these new engines is if you expierence a change in the way the engine normally operates or has a hard start or misfire then remove the plugs to check them. If the engine is running normal and good - DON'T FOOL WITH THEM! If you remove them, they normally should have a light tan insulator and the shell should be a gray color without a lot of heavy carbon or oil deposits. If you have oil or fuel wet plugs or heavy deposits this points to a problem other than the plugs. If the plugs look normal then use a tooth brush and not a wire brush and some alcohol or solvent carefully clean the tip and the threads and then blow dry. If the gaps are still around .060 to .065" these platinum tipped plugs should last a thousand hours or so unless damaged or erroded. Put a small amount of oil on the threads only and re-install, being careful not to overtorque or crack the insulators. If you have a misfire in any cylinder or a plug that's been removed and looks wet and un-fired then I would replace that plug just for good measure and check the compressionin that cylinder or fuel and spark system (injectors,wires, coils, etc.).It's kind of like the old saying. "IF IT AIN"T BROKE, DON'T FIX IT"
Regrads,
Ray @ Raylar
Regrads,
Ray @ Raylar