Heli-Coil in Motor Block

Greetings to all, I have a dilemma with a block of a 2.0i vectra, the matter is that when you go cook If they endure it, then loosen and lose tension, which does not look good. Any idea is well received, thanks !!

I do not know what is a heli-cat, but you can rectify to a measure more of the thread example if you are in 8 pass the male of 10 and you go to a turner and ask you to give you to measure measuring 10 only what thread in the block and the rest of 8 so the butt will enter well.

I felt fooling with the Paint.

Hi Igryo, Heli-Coil is a kind of "spring" that is stoning first with a specific male, then puts on a kind of adexive in thread and then this "spring" is threaded, it is the same, or even more robust than a normal thread, is used a lot in the production of engines, to recover blocks with some defective thread. The paste is its price, the other, to make a thread of greater diameter, I do not dare on the wall of the block, I do not know its thickness .. Then there is the temperate of the screw, because any "iron" is not worth it, in short; I don't know what to do. Greetings!!

Hello everyone, Ismael, what reliability experience have you had with Heli Coil in the medium and long term (many thermal cycles) dilatation-control? And the other is there any difference in Block Aluminio or Foundion? I appreciate advice and/or subjects thank you .slds.