miko_supra Posted October 16, 2006 Share Posted October 16, 2006 Doing the first cat nearest the engine. and i literally cannot undo any of the bolts at the top! anyone else had a problem. i've put some rust spray on it as well. Link to comment Share on other sites More sharing options...
Jake Posted October 16, 2006 Share Posted October 16, 2006 Yeah, common problem. The nuts rust onto the studs. You'll be trouble if you snap a stud. Applying heat to the rusted nut often helps if penetrating oil doesn't. If all else fails take it to an exhaust place and bung them a few quid to fit the pipe. At least if they snap a stud they'll have the right tools to replace it. Link to comment Share on other sites More sharing options...
mr lover Posted October 16, 2006 Share Posted October 16, 2006 Yeah, common problem. The nuts rust onto the studs. You'll be trouble if you snap a stud. Applying heat to the rusted nut often helps if penetrating oil doesn't. If all else fails take it to an exhaust place and bung them a few quid to fit the pipe. At least if they snap a stud they'll have the right tools to replace it. i took mine to my local bathwick tyres, chraged me 20 quid, bargain Link to comment Share on other sites More sharing options...
mikeyb10supra Posted October 16, 2006 Share Posted October 16, 2006 as jake said....be real careful not to shear one, or worse, snap one off!! cain them in WD40 for a few nights and have another go at them a few days after Link to comment Share on other sites More sharing options...
Bob Posted October 16, 2006 Share Posted October 16, 2006 I can really recommend Loctite Freeze 'n Release from Halfrauds. I used it on my cat along with a 2' breaker bar and everything came off easy peasy! Link to comment Share on other sites More sharing options...
Angarak Posted October 16, 2006 Share Posted October 16, 2006 I used "Plus Gas" on mine, its better at penetrating than WD40 IMO. Link to comment Share on other sites More sharing options...
Kranz Posted October 16, 2006 Share Posted October 16, 2006 A handy hint I learned a few years ago is to 'crack' the nut loose by TIGHTENING first it until it just moves, then slackening it off. This breaks the rust off, but doesn't get the rusty bits jammed further into the threads. Keep tightening and undoing it until it moves freely. Every time it seizes, back it up and spray it with plus gas/WD40/duck oil/KY Jelly or whatever you have. Link to comment Share on other sites More sharing options...
squiffy Posted October 16, 2006 Share Posted October 16, 2006 extra fat boy sized breaker bar does the trick:d Link to comment Share on other sites More sharing options...
Bob Posted October 16, 2006 Share Posted October 16, 2006 Screaming abuse at it also seemed to help, although the neighbours give me a lot of funny sideways glances now Link to comment Share on other sites More sharing options...
Kranz Posted October 16, 2006 Share Posted October 16, 2006 Also skinning your knuckles and bleeding profusely does the trick, after a visit to A&E Link to comment Share on other sites More sharing options...
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