Pulled treads in block for head bolts

[ridewot]

Has anyone repaired the head bolt treads in the block? i have 2 holes the pulled the treads out.

 

[DMCTurbo]

Has anyone repaired the head bolt treads in the block? i have 2 holes the pulled the treads out.

Did you overtorque them?

 

[ridewot]

Did you overtorque them?

No, did the 18 ft pounds then went to do the angle degrees and had the first two i tried
pulled the threads out i stopped after that happen. i did oil the threads of the bolts, the other thing is this motor was overheated and blew the head gasket. I don't know if the aluminum is fatigued from over heating. Also was told never oil the treads on the head bolts

 

[Turboflash]

Helicoil. In order to install them, you first have to drill correct size hole. Then tap with correct helicoil tap, then install correct helicoil.

 

[Srxspec]

If the engine has been overheated, you can have aluminum that no longer is strong enough to hold threads. I haven't had this happen on a Sidewinder, but have had it happen on a Polaris Ranger 900 before, I even had the standard helicoil pull out after installing them, the aluminum was that soft. I would suggest a EZ LOK time cert rather than a helicoil if it was me.

 

[74Nitro]

I had one come in last year with the threads pulled on two holes.
It had been overheated.
I did all eight holes and used 30mm long helicoils and then ARP standard head stud set.

 

[74Nitro]

If you haven't already I would highly recommend having the head surface checked.

 

[ridewot]

If you haven't already I would highly recommend having the head surface checked.

Did this already and was cut .006 to flatten it.

 

[ridewot]

I had one come in last year with the threads pulled on two holes.
It had been overheated.
I did all eight holes and used 30mm long helicoils and then ARP standard head stud set.

Yes i am doing them all, but with ARP head studs 20mm is all the amount of threads on the end of the stud.