(09-01-2017, 08:36 AM)Jonny81191 Wrote: You'll struggle to get enough heat into the head, I find just cooking the bolt seems to help a bit. If it doesn't go, you can always cook it then cool it with plusgas a couple of times, heat cycles should help to crack it off.. Be careful with the irwins though, if you round it off with those it's game over.No the exhaust flanges on the head actually stand off away from the main block of the head so you can get most of the way around them and behind them with the gas.
(09-01-2017, 08:38 AM)tigerstyle Wrote: Can't you just give them a tap with a chisel?They are so domed I think I'd struggle to get enough purchase and with the fact I've had to use my big breaker bar on the ones that actually have heads says I'm not gonna get enough force with the hammer and chisel.
(09-01-2017, 08:41 AM)Piggy Wrote: If you have a little grinder with a worn 1mm cutting discs.Nope, they are all actual bolts, if they were nuts I'd of had them off by now.
Make a slot at an angle across the nut (assuming they are stud n nut jobbies)...this should release the tension in it...get heat in there and allow you to smash a socket on it
(09-01-2017, 08:58 AM)zx_volcane Wrote: need to get it as hot as possible imoI don't, I have been tempted by an oxy/mapp set up for a while but it's £150 I don'e want to spend on it. This is the kit for info https://www.thewelderswarehouse.com/Weld...Kit-2.html
anyone you can borrow an oxy torch off?
MAPP on it's own isn't far off oxy really