Quote:
Originally Posted by RescueU
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You know, Sean80...I'm half tempted to pull plug #6 since i'll be yanking the boot anyways, just to see how it's doing so far. That way I'll be able to tell if the replacement of the #6 wire made a difference with getting good spark.
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Do it if you are in there - you will at least get an idea how long it will last before having to replace again. BTW - I went through this with a 280Z - I am just guessing 20 years ago now. It was fuel fouling the plugs due to a faulty sensor in the fuel injection. I did it for a year or so. I found that NGK plugs held up to the conditions the best by far - lasting 3x longer than any other plug I put in there. I have used them in every application since - and was happy the LC specified them stock.
Now, if it were mine, I would do the head gasket PM - or at least start planning it. The reason I would is because it will expose all three possible areas that the oil could be getting in and put you at ease of mind with the HG at the same time. When the head comes off - send it out to be cleaned, new valve seals(1), and valves adjusted. Do the head gasket(2) as described here or the FSM and while you are in there you would be able to see if the rings(3) are in bad shape by the bore of the cylinder.