Tear down rev 2

[pauldeepsea]

Alright been having problems with the pit bulls compression releases backing out..
This was the only thing that I took to a shop to rebuild and after many tries decided to get after the problem. Problem found the threads are completely stripped??? Thought about tapping it but decided that I am going to remove the motors and tear down the rear head. Get it machined and this time do it myself.

 

[FrankBDPS]

How do they fix that Paul? Some kind of insert?

 

[cdogg556]

How did they get stripped out in the first place? Just seems kinda strange, previous owner maybe?

 

[HMAN]

That sucks Paul. Hope its not too bad a fix....?

 

[pauldeepsea]

How did they get stripped out in the first place? Just seems kinda strange, previous owner maybe?

I am not sure the motor was rebuilt and I am not sure if they over torqued the releases.

 

[pauldeepsea]

How do they fix that Paul? Some kind of insert?

They do make inserts, I am going to start by just running a tap to try and clean the threads.

 

[FrankBDPS]

Paul instead of a tap use a thread chaser. It will not cut as much metal out like a tap will. Good luck!

 

[popsicle069]

Paul, I had a machine shop here locally weld up the head and re-tap the hole. worked out perfect.

 

[BWG56]

Can't you just put a heli-coil in it?

 

[liferider]

Can't you just put a heli-coil in it?

No you can not. Way to much torque. I own a machine shop & Popsicle is correct. They use a lighter rod specifically for this and weld the hole up. Then re-drill and re-tap it. Anything short of that and you will be doing another tear down! I may still have a few pounds of these rods. They worked great when customers would snap a bolt head off. I would put a nut over the snapped off bolt shaft and weld it to the nut. Then back the bolt out. My dad use to say a gorilla can snap off a bolt but a wise man can remove one! Like I said. Heli coil's are great but they have their place & time. On top of a head under compression is not one of them!

 

[Th3InfamousI]

Paul instead of a tap use a thread chaser. It will not cut as much metal out like a tap will. Good luck!

Not to HiJack here but speaking of thread chasers. The ONLY kit i have been able to find is the below. Does anyone suggest a different kit? I've been wanting to buy one, this one seems to be the most common but I really only care about the taps not the dies in the kit.

https://www.amazon.com/Kastar-971-M...3&sr=8-1-spell&keywords=Kaystar+Thread+Chaser