hi there guys, i took the top end off my 1999 kx125 and when i put it back on the stud (double threaded bolt) that is screwed into the engine case started to strip, i pulled out the stud and saw it had threaded inside the case(dam japanese die-cast), i crapped myself, i dont no what to do, i was told to use a heli-coil, but am affraid it will just strip again, is there some type off glue or sothing that i can put on the stud after i use the heli-coil to stop it from stripping, or a strong type of glue that will jus hold the stud in strong without using a heli-coil, is it possible to weld it in or wat, ive got a 3 day ride coming up soon so any replies will be greatly appreciated, thanks
stripped case thread AAAAAAHHH
- Thread starter kawaguy
- Start date
Speedfreek
Member
- Nov 3, 2003
- 153
- 0
a heli-coil insert will be stronger then the original threads if installed properly. If you've never done one take it to a machine shop and have them do it for you.It shouldn't be too exspensive
- Thread starter
- #3
does the heli-coil insert go right to the bottom of the thread, i have looked at the heli-coil inserts on the net and they are only short(about 10-15mm) the hole that they need to go into is about 30mm deep, or do they come in a long size and you cut them to the desired length, also what stops the heli-coil insert from turning around in the hole as the instructions say not to thread it to the bottom of the thread hole, and is the metal in the engine case to soft, i seems like if i torque the bolts they will pull up the heli-coil insert and destroy the thread, should i use permenant heat resistant loctite, is there any other thread inserts on the market that work better than a heli-coil insert, or maybe an insert that has some sort of teeth on it that hold it in place, i just dont want to strip the thread again, i may sound paranoid but this is really bugging me,
cheers
cheers
A heli-coil will work just fine , if it is installed properly ....
Like it was said , it will be stronger than the original thread.
And , using the right tools the thread will be deep enough.
You dont have lean on the tools to tighten these things properly you know.
Cylinder stud bolts/nuts can be difficult to reach with a torque wrench and socket , but the correct torque is usually around 20-25 nm .....
Like it was said , it will be stronger than the original thread.
And , using the right tools the thread will be deep enough.
You dont have lean on the tools to tighten these things properly you know.
Cylinder stud bolts/nuts can be difficult to reach with a torque wrench and socket , but the correct torque is usually around 20-25 nm .....
Heli-coil!
Heli-coils are the way to go. I used to design rocket motor components and tooling for assembling them . A lot of aluminum is used in the tooling and components and we would NEVER use the base material (aluminum) for bolt threads. We would always install heli-coils because they are waaaay stronger and do not lose strengh as temperarures increase.
Like Speedfreak said, if you don't know how to do it just take it to a machine shop... it will not cost very much and will be $$ well spent.
Good luck :cool:
Heli-coils are the way to go. I used to design rocket motor components and tooling for assembling them . A lot of aluminum is used in the tooling and components and we would NEVER use the base material (aluminum) for bolt threads. We would always install heli-coils because they are waaaay stronger and do not lose strengh as temperarures increase.
Like Speedfreak said, if you don't know how to do it just take it to a machine shop... it will not cost very much and will be $$ well spent.
Good luck :cool:
