Helicoil pains

[larrys40]

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Bob,

I would try the Permatex on the threads first..... it will probably fix the weepage. you might want to put a little on a stick type q -tip into the back of the hole so you can get sealant on the back of the threads... also coat bolt before installing...Everyone might have their favor of sealant but for the threads like that I'd try Permatex #2 first.

No offense to Brent's suggestion.. as I regard his advice as the best... having had bad experiences with stop leak more than once... ( fixing one problem, causing another-clogged up radiator) , I would do everything I could first to thwart it at the bolt and hole as opposed to putting something in the radiator that could potentially have clogging effects on the system.
When you have something like this you just have to patiently, methodically, try to fix it from least evasive and simple to the next step until it is fixed.
I'm confident that it will be OK . Let us know how it pans out.
Hope we all helped Bob!
Larry Shepard
St. Charles, MO