Quote:
Originally Posted by A26B
I think the one you have is a 1/4" NPT plug. These are used in the rear of the camshafts. Its a tapered thread, smaller on the end, bigger towards the top. In the middle of the plug threads, it would measure abt 0.532" on the thread o.d.
I have heard of new, aftermarket, new & reground camshafts being installed without the plug. I have not heard of one coming out, but would bet this is what you found. If you are lucky, you will pull the correct cam cover first!
A spec plug like this would be abt 0.405" long.
My money is on the rear cam plug.
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It does match those dimensions and it is NPT, it screwed right into the back of one of my air tools... although its path into the bottom of the oil pan remains a head scratcher. If it is a camshaft oil plug how big a deal is this? Oil pressure is still within minimum spec, am I looking at a rapid wear issue?