Helicoil repair

[Bandit 286]

Can you use a helicoil repair kit to replace a stripped plug in a cylinder head? I should have explained it is on my 503 rotax.

Edited 26 Sep 2023 by Bandit

[Av8r3400 1179]

Ford uses them all the time...

 

[1avidflyer 1983]

There was an interesting video on youtube where a guy does pull tests on aluminum.  Amazing how much more it took to pull out the helicoil threads compared to just taped threads.  JImChuk

[wypaul 448]

Yes, it will work great for you.  I had a Revmaster with a plug installed at the factory without thread lube and pulled the threads.  I took it to a speed shop for the repair because I wasn’t comfortable boing the repair myself.  Bottom line, it worked great with no future problems.  Just had to install one in a friends 912 engine block the other day.

[Bandit 286]

Brett at Leading Edge Airfoils said you don't get the right heat range if you do that

[Bandit 286]

Just talked to another Rotax repair station and he said he has done it before with no problems.