rusty exhaust studs
Instructor
Joined: Jul 2013
Posts: 140
Likes: 2
From: York PA
You're not a machinist, are you...
My advice would be to spray it several times with something like PB Blaster, giving it an hour or two in between applications. When you try to remove it, do it very gently, with LIGHT taps of a light hammer. Reverse direction of your LIGHT taps every six or so taps. The key is to get ANY movement at all out of the bolt. If you can get it to move at all, repeat the above, possibly several times, until it comes out.
It can be done, but it takes a delicate touch and patience....
Good luck,
Al
My advice would be to spray it several times with something like PB Blaster, giving it an hour or two in between applications. When you try to remove it, do it very gently, with LIGHT taps of a light hammer. Reverse direction of your LIGHT taps every six or so taps. The key is to get ANY movement at all out of the bolt. If you can get it to move at all, repeat the above, possibly several times, until it comes out.
It can be done, but it takes a delicate touch and patience....
Good luck,
Al
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
If you're concerned about damaging the head of the bolts use a "flank drive" six point socket or wrench. It puts pressure on the flats instead of the corners, so there is much less chance of rounding off the head:
Thread Starter
Advanced
Joined: Aug 2013
Posts: 97
Likes: 0
From: Indiana
almost got her off. Im having rouble with this band clamp. I have the nut free but the bolt is locked solid... even after PB... even after pushing up on the bolt with an extra jack. can I cut this off and replace with a new exhaust clamp? is it part of the pipe? I see a rivet on the outside of the band. is there a post on the inside that keeps everything aligned?
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Instructor
Joined: Jul 2013
Posts: 140
Likes: 2
From: York PA
Team Owner
Joined: Sep 2003
Posts: 25,398
Likes: 2,742
almost got her off. Im having rouble with this band clamp. I have the nut free but the bolt is locked solid... even after PB... even after pushing up on the bolt with an extra jack. can I cut this off and replace with a new exhaust clamp? is it part of the pipe? I see a rivet on the outside of the band. is there a post on the inside that keeps everything aligned?
Team Owner
Joined: Aug 2005
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From: Riverside County Southern California
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You're not a machinist, are you...
My advice would be to spray it several times with something like PB Blaster, giving it an hour or two in between applications. When you try to remove it, do it very gently, with LIGHT taps of a light hammer. Reverse direction of your LIGHT taps every six or so taps. The key is to get ANY movement at all out of the bolt. If you can get it to move at all, repeat the above, possibly several times, until it comes out.
It can be done, but it takes a delicate touch and patience....
Good luck,
Al
My advice would be to spray it several times with something like PB Blaster, giving it an hour or two in between applications. When you try to remove it, do it very gently, with LIGHT taps of a light hammer. Reverse direction of your LIGHT taps every six or so taps. The key is to get ANY movement at all out of the bolt. If you can get it to move at all, repeat the above, possibly several times, until it comes out.
It can be done, but it takes a delicate touch and patience....
Good luck,
Al
Safety Car
Joined: Aug 2013
Posts: 4,430
Likes: 609
From: Minneapolis Mn
Rusted head bolts
Sometimes using a torch and heating the nut works too.
One thing I've found working on old machinery is a 50-50 solution of ATF and Acetone. Use it just like PB Blaster etc but it seems to work into the threads better and I've gotten things loose using that where products like PB Blaster and Kroil failed.
Hope that helps.