Net profit exhaust bolts

[BrawnFG]

long story buy first bash in about 4 years and I have lost both bolts from the exhaust port.

Can anyone tell me the thread size and bolt length so I can but a bag of spares?

Engine is 23cc zennoah and exhaust is jet pro marder/Baja with silencer (flat plate type)

 

[renbar]

I know there m5 thread but not sure on length mate

 

[BrawnFG]

Cheers dude, I'll have a rummage in the parts bin at work tomorrow. I think I need a conical spring washer there too so it doesn't work loose again when the engine is hot.

Also just read the title of my post... Dumbass autocorrect!

 

[BertR]

They should be M5x25

 

[Todd5b]

don't forget High temp thread lock

 

[BrawnFG]

Yep Spring washer (conical type) has fixed it. Must have been thermal expansion loosening them because there's no stench in such a short screw.

 

[BertR]

If you keep having issues with this you can get Stage 8 locking header bolts from DDM.