Engine Trouble Stripped Exhaust Bolts

[CrispyLeaves98]

I just got an Mz65 clone right when i put it on I must've not done it properly it ripped right out and now i cant put any exhaust on, the pipe and all got no damage whatsoever. what do i do?

 

[Karl Snarl]

Tap it to 1/4-20, then use 1/4-20 all thread rod and make some new studs.

No need to drill it out, just get the broken stud out, and use a 1/4-20 tap and add the new threads carefully. Twist in 1/4 turn, back out 1/16th, twist in 1/4 turn, back out 1/16, while threading the tap in the hole.

 

[CrispyLeaves98]

Tap it to 1/4-20, then use 1/4-20 all thread rod and make some new studs.

any solutions that require less mechanical skill?

 

[Karl Snarl]

It's not very complex, its exactly like screwing in a screw. only this screw cuts new threads.

 

[CrispyLeaves98]

It's not very complex, its exactly like screwing in a screw. only this screw cuts new threads.

where would I get the thing to do that

 

[Karl Snarl]

Wait let me make sure I'm clear, the holes are stripped, right?

 

[CrispyLeaves98]

Wait let me make sure I'm clear, the holes are stripped, right?

yes

 

[Karl Snarl]

ok, go to hardware store, grab a 1/4-20 tap, just ask a worker where they at. It looks like this https://www.mscdirect.com/browse/tn...Bt3DRJUoddcHCM4gcmRoCBLEQAvD_BwE&gclsrc=aw.ds


make sure it is a "BOTTOM" tap. thats just means it taps to the bottom of a hole

 

[CrispyLeaves98]

can i tap it to 7mm? what thread size is 1/4-20

 

[Karl Snarl]

1/4-20 is slightly larger than a m6. to go to m8, you are going to need to drill. Good luck finding an m7 screw, not common at all.

going to 1/4-20, you wont have to drill. just screw the tap in and out till it hits bottom, and you are done and ready to thread some 1/4-20 all thread rod in or use a 1/4-20 bolt