Any advice on how to undo this little sucker. I've already hauled on an allen key as hard as I dare without any movement - scared I'll wreak the screw head!
Had the same problem,I made sure that I had a really good quality Allen key with a long shank inserted fully,then I put a 6mm ring spanner on the end to use as leverage,that worked.Good luck,it is scary applying that much pressure.
Thanks for that - I'll get down to the good tool shop and get the best available tool. Hopefully the last few day soaking with penetrating oil will help a bit too.
No success yet; I've had it soaking with wd40 for a few days and got the best long reach 5mm Allen key I can find - but it refuses to move. I think the next thing will be to apply a generous dose of heat from a hot air gun...
Yup, only 5mm socket head. So tomorrow, I'll remove the tank and a few other items not likely to respond well to high temperatures and get to work with the blow lamp.
I made the mistake of trying to undo mine with a ball head T bar, the ball snapped off in the bolt head. I had to get the hacksaw out and cut the bolt. Luckily I was ditching the top yoke otherwise I would have really cocked up...
The good thing for me is that I don't actually have to remove the bolt just now. The head bearing is OK. I do have a set of taper roller bearings I'd like to install but there's no rush. Having found the bold seized though I do want to get it loosened if only so I know I can remove it later. All good advice so far - and basically how I was thinking anyway. Only a thought but is an impact driver any help in this situation? I don't actually have one - but this could be the excuse I need to buy one.
Failure... The screw head finally gave out - after several attempts to undo and when really quite hot! Smokin. So now the damned thing is properly stuck in there and I can no longer use an allen key to undo. As I said, I don't actually HAVE to get it out just now the head bearings are OK - so options: 1 Quit while I can. 2 Drill out the head 3 Saw through the bolt. 2 and 3 leave me with the problem of how to extract the remainder of the bolt. Either way, it looks like I would have to drill out the remainder of the bolt - if I saw though the bolt I'm guessing it will be difficult to centre a drill on what remains of the bolt later - but if I drill out the head there is always the danger of wandering off centre anyway. Any words of wisdom?
