Topic: '76 cb750F exhaust stud removal

[pjlogue]

I purchased a '76 750F engine that has 16,000 mi on it.  I am in the early stages of rebuilding the motor.  What I need to do is remove the exhaust collar studs.  I have tried three nuts jammed together, heat, vice grips on the non-threaded part while using the jam nuts and the stud is still rock solid.

Any suggestions for removing them?  Suggestions would be greatly appreciated!

I plan on using my stock exhaust with the exhaust nipples that are on my 750K,  I also don't want the studs sticking out when I go to put the rebuilt engine into my bike.  Frame is like new condition and I know the exhaust studs will trash the finish on the frame. 

-P.

[pjlogue]

Thanks for the advice.  I think I need a bigger torch.  I have the mapp gas but the torch head is quite small and isn't throwing out a lot of heat.

-P. 

[Tracksnblades1]

Sometimes the rattling impact of a 3/8” impact can work wonders.  a few hammers tighter, a a few hammers looser, tighter-looser, back and forth,  back and forth, watching your socket for progress, can do more that slow steady gorilla torque that just twist things off.. patience patience patience is the key…😇

[willbird]

Yea a rosebud on an oxy acet torch is what you want to heat things red warm when they are threaded into an aluminum heat sink.