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well, coolant was definitely coming thru bolt hole on pressure test, sealed with permatex #2 just like the haynes manual says and leak is gone. not sure of the whys or why nots but



Good that you got the leak stopped.

Hopefully the bigger issue of WHY there is coolant coming up that hole doesn't get worse.

then there is the torque aspect, I don't know how the torque value of the bolt is changed by the use of permatex vs. oil.

But as long as your happy with the result I guess that is all that really matters :