View single post by srq2002
 Posted: 08-06-2014 01:18 pm
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srq2002

 

Joined: 07-14-2014
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 I started down the helicoil road to fix the holes, to discover that you can't do it while the cam towers are on the car.

From a JH factory trained tech from back in the day:
1) The holes in the cam towers were originally drilled and tapped from the back side. This is why you will see 8 or 10 turns of thread outside of the hole on the sides of the front end ones.
2) Because of this, a drill from the top would be pushed toward the outside, resulting in a misalignment with the cam cover.
3) The helicoil insertion tool can not be put flush against a hole from the top.
4) People who try wind up with a kludged mess that still leaks.

So, I will pull the cam towers and do all 12 holes from the back.

Last edited on 08-06-2014 01:19 pm by srq2002