How did u guys go about this ? Mine are soooo rusted its ridiculous. And i dont wanna force them and snap em. I sprayed them down with PB with no luck.

 

When they get that bad, it's easier just to torch them out and get new bolts and nuts.

 

Ahaha, my CRV had some that were rusted solid and I just changed the cat today.

Had to get out the old angle grinder and cut all the bolts off. There's no way you will be able to undo them....they will strip before they turn. I had the weight of the whole car on some of my bolts (jack under the wrench) and they just rounded off.

Hopefully yours aren't that bad.

 

haha close....theres so much rust a 12mm doesnt fit and a 13 spins.

 

agreed thats what i did with my crx when i had it rusted all took a torch to them came right out.

 

hahaha.

i had to grind mine out also.

oh well. time to upgrade cat anyways.

 

Wut kind of torch propane or oxy set. ?

 

Eventually I'll do mine, but there is no sign of a hex shape at all. Its just a glob of rust. I'll end up using a dremel if the cutting bit isn't too small.

 

I got mine off with some PB Blaster, 6 point socket, and an impact...or did I use a breaker bar... either way, it took a long time. And I was lucky enough to have a lift, so I could stand under the car

 

I used a die grinder, and after I cut them, the studs were seized into the flange. So I had to get a propane torch to heat and hammer them out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by InvaderTrax &raquo;</TD></TR><TR><TD CLASS="quote">I got mine off with some PB Blaster</TD></TR></TABLE>

PB Blaster FTMFW!

 

I was lucky on 2 of mine a 1/2 inch impact got them off, the third, I cut an edge off with my dremel and a cutoff wheel, then a second edge, then I popped the nut off. I had to fix the threads up a lil bit, but it was better then having to put a whole new stud in there. Lucky my header came with new upper to lower bolts, and the old nuts from there fit the cat studs perfect.

 

lol im in this boat now...i cant get mine off pb blaster didint work i was at 100 psi with my impact no go...so my friend with his 1000 ft lb impact is coming over 2 morrow lol try that if not well ill pull out the dremel and torch...

 

yea man cut it or if youve got the balla craftsman extractors like yo soy then you can get your forearm on...

 

the stripped bolt extractors worked wonders for me.

Still a PITA though.

 

yea..they worked wonders for me esp. when SOMEONE stripped a head bolt..cough cough someone...cough cough someone