Posted by Al Baker(pumpman) on September 30, 2021 at 07:27:25 from (199.192.180.1):
In Reply to: Need some help posted by Dutchman on September 29, 2021 at 18:00:04:
A pipe is very thin at is threads. Use a dremal or die grinder to grind just a pinch thinner in a few places. Not enough to hit the threads in the head. This will weaken it. Then peal it out with a chisel. Never try a inner type tool to grab the piece. This causes them to expand and make the pipe tighter. You can also heat the head some, but not to much. I use a thermal temp gun to gauge it. never much over 250-300. Pipe fittings are interference fit. so they are slightly tapered. Very little heat makes the threads looser. This works very well in aluminum where the female thread will expand at 3 times the rate of the steel pipe. If you ever heat exhaust, whither it is pipe, or cast,(like a manifold) remember if you bring it up cherry hot or more it will pull carbon from the exhaust soot and make it harder than heel. Only a few minutes and you should be able to peal it out. Al
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