Quote:
Originally Posted by Freddo
I was planning to go down to parts store & buy a slightly longer bolt to try to get it past the bunged up threads in the head.
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This will be the cheapest and easiest "if it works". You can test the threads in the hole by removing the cover and gasket.
Here's what I'd try (for free!).
1) Remove cover and gasket.
2) Place a bolt in hole without turning. Measure how much it sticks up.
3) Now cautiously turn the bolt into the existing threads and measure when it bottoms out.
4) If the depth ends up being 1.5 times the diameter of the threads then you will be fine using a longer replacement bolt.
BTW, these are 1/4-20 bolts/threads. So you'd like to see the depth at 3/8".