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ggriffis426

2000 YZ426 oil delivery pipe bolt stripped

3 posts in this topic

I stripped the threads out of the hole in the right side crankcase cover where the oil pipe bolts in. No problem, I thought, I'll just heli-coil it and be on my way. Not so fast... I am measuring M8 x 1.30 on the threads and can't find a thread repair kit with this thread pitch. Has anyone ran into this problem before and fixed it without replacing the crankcase half?

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The thread is M8x1.25. You'll have more luck finding that.

On another note, a Time-Sert is a better repair because it spot faces the top of the hole to ensure it's square with the bore axis and will seal better.

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Thanks grayracer513, I went back and measured the bolt and your correct, M8 x 1.25. The threads had stretched towards the top of the bolt. doh! I'll go with the Time-sert as well.

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