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stripped some upper rocker threads

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Old Jul 5, 2008 | 03:40 PM
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Default stripped some upper rocker threads

Good day people,

I would like you to advise me if it's ok to bolt on 3 first stripped rocker threads on one valve. When I bolt it down it sits tight with no problems.


should I be worried?
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Old Jul 5, 2008 | 03:53 PM
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Shouldn't be a problem if it can be torqued to specs...
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Old Jul 5, 2008 | 03:57 PM
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alright, thanks for calming me down
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Old Jul 5, 2008 | 09:06 PM
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Not sure I understand, there are only three threads left?
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Old Jul 6, 2008 | 12:04 AM
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stripped the first three of four sets, but if i tight the bolt staight it goes without a problem.
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Old Jul 6, 2008 | 08:26 AM
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From: Little Rhody
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I think I would heli-coil them. I would want about 2 diameters of thread to get good strength. How many turns of thread engagement do you have. The problem is if they let go you can do a lot of damage so you will be taking on some risk just using them as is.
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Old Jul 6, 2008 | 08:51 AM
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I have at least 5 threads in good condition
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Old Jul 6, 2008 | 12:13 PM
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From: Little Rhody
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I would heli-coil the threads.
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Old Jul 6, 2008 | 01:28 PM
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the rule of thumb is 1 1/2 times the diameter of the bolt. ie 1/2" bolt you want 3/4" of thread engagement.
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Old Jul 6, 2008 | 04:58 PM
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Originally Posted by styoung
the rule of thumb is 1 1/2 times the diameter of the bolt. ie 1/2" bolt you want 3/4" of thread engagement.
I diffenately have that amount, thanks guys for your help
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Old Jul 6, 2008 | 05:57 PM
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From: Little Rhody
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Originally Posted by styoung
the rule of thumb is 1 1/2 times the diameter of the bolt. ie 1/2" bolt you want 3/4" of thread engagement.
I tend to go more than that in bare aluminum. 5 threads is 4mm.
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