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cylinder head post

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07 crf 250r, tore top end down, new piston, cylinder and valves, while replacing head I noticed the post on the left side intake appeared to have more threads exposed. measued, and in fact it does. With the washer on and I tighten it down it will push thru the top of the acorn nut, What would cause this? Could the post have pulled up? Can I put an additional washer on to take up thread?

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Fully seated, someone else must have been in there and over tightened, the post was stretched, added a washer to take up thread and use the post, but at 25lbs. it snapped. Have to replace that now...thanks

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Fully seated, someone else must have been in there and over tightened, the post was stretched, added a washer to take up thread and use the post, but at 25lbs. it snapped. Have to replace that now...thanks

Better it happened now than at WOT. :smirk:

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