Hello,
I am struggling with the spark plug replacement. I have 2 volvo 240s. I never had a problem changing last time.
This time I took out #1 spark plug (i.e. difficult one against the wall). Then I carefully screwed in a new one a little but realized that it was not going in right. So I took it out and found that the gap was pushed in a little. So I corrected the gap. I tried to put it back in but was not successful.
Visually I cannot see the obvious damage to the spark plug hole. Did I damage the thread in engine? The spark plug itself is fine, which I know for sure.
Is there any trick to align the spark plug? Should I force?
Thanks!
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