o2 sensor bolt difficult

[Spoolin4Ever]

This bolt is more difficult than the rest. Can't get the closed end of the wrench over the bolt head, only open end. I sprayed it with PB Blaster and some Pyroil lubricant.

Anyone got any tips on this one? Pic attached..

 

[TSiAWD666]

Blow torch and a breaker bar.

 

[1990AWD]

Get a torch on it to heat the bolt up and try fitting a socket on there. Make sure its a 6 point socket btw.

 

[fwdmaster]

Torch the bolt and use a hammer

 

[Spoolin4Ever]

Where is the best spot to heat the bolt? Bottom threads, head or middle in the o2 sensor?

 

[1990AWD]

If you can, heat a little from the backside of the bolt and then the head. Don't hold the heat on it to long at once otherwise you'll make the head too soft to turn with the socket. The heat is just to seperate the bolt from the housing.

 

[Spoolin4Ever]

breaker bar did it without the heat thanks all..now for that one last pesky exhaust manifold bolt