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Rocker Arm Bolt Hole Thread Stripped - Need Advice

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Old 11-13-2007, 11:08 PM   #1
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Default Rocker Arm Bolt Hole Thread Stripped - Need Advice

The thread on one of my rocker arm bolt holes is stripped out. I tried a helle coil repair kit which included a bit, tap, and correctly sized metric 8mm helle insert. I'm running a TT with 10 psi and 9:1 compression and it keeps backing out and breaking my rocker arm guide plate. I even tried drilling and installing a larger 3/8" helle coil and that pulled out to.

What options do I have at this point to repair the existing head? Should I get it welded up and redrilled and tapped to factor spec? Can I use JB Weld and try to weld in another helle coil?

Your advice is greatly appreciated as I'm running out of patience. Please email me at joey.wheeler@wellsfargo.com or call my cell at (972) 898-0101.


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Old 11-13-2007, 11:08 PM
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