15-07-13, 10:55 AM
Well, I have my "new" set of pipes cleaned up.
Valve removed (after a week of soaking with plusgas), and even with gratuitous application of a blowlamp, giving the bolt and surrounding areas a bit of a gentle bashing with a hammer to try free things up, i still had a bolt shear on me.
2 came out very easily though, so the plusgas and heat must help, but I do think that the chances of getting all bolts out unscathed are slim to none.
I did manage to successfully drill out the busted bolt this time though
The valve on this one was seized beyond belief. Loads of carb cleaner to try break down some of the carbon deposits, loads of plusgas again and still no joy. Ended up with the valve held in the vice and having to hit the mounting plate (carefully!) with a hammer to get things moving. Once it started though, it was all good with some WD40 to help things. lots of rusty colour liquid came out, but it's nice and free now (and doused in copper grease).
So all good for the exhaust swap, which I'm dreading. The exuast studs don't look too badly corroded to be honest, but after the exup experience, I'm very apprehensive.
Valve removed (after a week of soaking with plusgas), and even with gratuitous application of a blowlamp, giving the bolt and surrounding areas a bit of a gentle bashing with a hammer to try free things up, i still had a bolt shear on me.
2 came out very easily though, so the plusgas and heat must help, but I do think that the chances of getting all bolts out unscathed are slim to none.
I did manage to successfully drill out the busted bolt this time though
The valve on this one was seized beyond belief. Loads of carb cleaner to try break down some of the carbon deposits, loads of plusgas again and still no joy. Ended up with the valve held in the vice and having to hit the mounting plate (carefully!) with a hammer to get things moving. Once it started though, it was all good with some WD40 to help things. lots of rusty colour liquid came out, but it's nice and free now (and doused in copper grease).
So all good for the exhaust swap, which I'm dreading. The exuast studs don't look too badly corroded to be honest, but after the exup experience, I'm very apprehensive.