pletner

I'm trying to remove my exhaust pipes so I can replace the driveshaft u joints. Does anyone know how to remove the three bolts from the rear of the cat without breaking them? I've sprayed them with liquid wrench. Any other thoughts? :confused: :banghead:

Topless87

If that doesn't do it, you may have to heat them up. Most of my experience with exhaust bolts is once they are heated up with a small torch, they will come off without breaking. But, will need to be replaced with good grade 8 anyway if they are that bad.

DISCLAIMER: Be careful whenever using an open flame, flames are dangerous :yesnod:

marrepka

Carefull, when I put my Corsa's on I broke all three of those little suckers, major pain in the back side to get them out after that.

Midnite 88

I've had good luck with "P-B" as a penetrating lubricant to break loose rusted nuts and bolts. I can't remember what the "P-B" stands for but it's ... something "buster" in a yellow can with red and black writing.

It is used by the guys on "Two guy's garage" on discovery channel.

Hope this helps.

BTW, with PB spray it, hit the head of the bolt with a hammer a few times and let do it's work for an hour or so. It should break it loose.

I have had much better luck with the PB than WD-40.

Mike.

Alchemist

That did the trick when i swapped out the exhaust on the '94!

:iagree: ESPECIALLY with petrolium penetrants already on the nuts! :iagree:

loknload

Try and soak them with Kroil, If not available in your area they do have a web site! :thumbs: