Every now and again give the bolt a sharp rap/shock & you may also need an impact resistant hex socket. You certainly do for nuts/bolts. A nice tight fitting one as well. Best of luck with him.
So the saga continues and the bolt is still solid, has been soaking in diesel for a week from the shock side, bought an industrial grade impact 8mm hex socket, on a short 3/8 impact extension then an impact adapter to 1/2 inch.. We have tried a couple of air impact wrenches and a Mac tools electric.. Nothing.. I think I am in agreement that it is the head that is stuck, if it were the threaded end I would feel some twist in the bolts length, if it were stuck in the shock itself it would still rotate a small amount.. I think I will be trying the acid next, if this does not work then drill the head off and try to easy out the rest of the bolt that hopefully will then turn freely.. If anyone has a any photos of the swing arm around the shock area without the shock in as I have very limited vision of what I am working with, also is the thread in the swinging machined into alloy or a captive nut.. Again thanks for the help on this..
Maybe heat up the swingarm in the area using electric heat gun no heat directed at the bolt head. ..obvs avoid any hydraulic ... electrical cables lines etc ..... Don't know if the swingarm has painted finish ?
I bought one of these the other day, I've only used it twice but it undid 2 nuts I couldn't do by hand no matter how hard I tried. Apparently it'll do 950nm If you lived closer I'd pop her round. https://www.mytoolshed.co.uk/dewalt-dcf899n-xr-brushless-1-2in-pin-detent-impact-wrench-bare-unit
The gun we used was the Mac Tools version Blows per Minute 0-2,400 Breakaway torque 1200 ft-lbs. (1,625 Nm) Free Speed [RPM's] 0-400/1900/1900 Style Cordless Torque Range [Ft-Lbs.] 1200 ft-lbs. breakaway Torque Range [Nm] 1625 Nm Type Impact Wrench I was amazed the bolt head and the Allen socket stood it..
Swing arm is anodised, problem is you cannot get any heat near where the bolt is as it is about 2 inches into the swingarm, I am contemplating an oxy/acetylene welding torch, something small and heat the head of the bolt, I know this will ruin the hardness but least then it will be easier to drill out..
Can’t remember if the design is similar however I had a seized shock bolt on my 916. The head was seized in the arm so I drilled the head off. Once that was done, the threaded shank was simple to remove as it was not seized. Not sure if this helps.
Hi Sev, that is amazingly generous, I would like to pick it up so I could thank you in person but do not have the opportunity, I have already bought a replacement shock but dependent on price would be very interested in the Ohlins. What I will say is that I will keep on and If I can get the bolt out I will return your arm or pass it on as some other poor sod comes up against a similar issue.. Ill PM you with details..
Hi Ricky That is what I am hoping for but if the thread is seized then I am in big trouble, Ill swap the arm out with Sev's replacement then I can work on it at a leisurely pace..
