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Old 07-30-2015, 10:54 PM
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2door 2door is offline
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Default Re: Cylinder Stud broken

I don't disagree with anything Dave said above, but, my guess would be that the threads in the aluminum case would let go before a steel stud stretched enough to actually break. Stripped threads is one of the most common things I've seen in engines that were returned to a supplier. I'm not saying a broken stud is impossible but a believe damaged case threads are much more common.

Of course with either failure over tightening is usually the culprit which is why we stress the use of a torque wrench when working on these little engines. And not exceeding the set torque value. Check the fasteners but checking them for tighness doesn't mean seeing the wrench turn. It means checking to see if they are still at the torque recommended. If they are, leave them alone.

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