I changed the plugs in my daughters Mazda last night before I took it though
the pollution test this morning where it passed I'm happy to say. My
question is about the difficulty I had in removing two of the plugs. I've
never had a plug so reluctant to be taken out. Two of them fought me all
the way out. The engine had been run briefly about 3 hours previously so it
was pretty cold by the time I removed the plugs. The most difficult one had
aluminum in the bottom two or three threads. Does the aluminum melt into
the plugs or what? The reason I am so concerned is that I need to change
the plugs in my wife's Olds V6 which is going to be a misery anyway as I
have to disconnect the dog bones and rotate the engine toward the front in
order to remove the plugs on the firewall side. Since it also has aluminum
heads and I know that the plugs have never been changed, am I looking at the
same kind of difficulty to remove those? I understand that it is a good
policy to put anti-seize compound on any bolts that go into aluminum and I
assume this is correct for plugs as well? The only MG content is that there
are aluminum heads available as replacement heads which I assume could cause
the same kind of problem.
Thanks in advance,
Dave 72 B
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