I was about to replace the clutch slave cylinder with an Oberon one but hit a brick wall in that I could not budge the banjo bolt at all! I was just rounding the nut so I had to give up. Any suggestions as to how I tackle this? Also could anyone point me in the direction of a replacement as the outgoing one is going to be mullered when removed. Cheers Dave
Have you got a decent six sided socket in there? It sounds like a deranged Gorilla has fitted it as they shouldn't be that tight. Sometimes a bit of corrosion can occur and they need to be ‘cracked’. Worse case scenario is to weld a nut on the back of the banjo bolt. Edit- decent torque driver should shift it as well. My cordless dewalt does most stuff but I have a mains one for the really tough stuff.
Before you try anything get the slave cylinder warm with a hair dryer or very carefully with a hot air gun. The body of the cylinder is alloy and so will expand to a greater degree than the steel bolt and should help to crack the bolt loose.
Short 6 sided sockets and a decent breaker bar really help in these cases, plus a piece of steel tube for the really tight stuff. But to be honest I tend to break out the torque driver if anything is tight these days. Heat also helps, but not ideal on a clutch slave even if you are going to scrap it if you only have a blowtorch or welder. As mentioned above , heat gun could help.
you turning it the correct way..... as its upside down? I don't believe it will or should be that tight on a copper washer.
have you tried using a punch to give the bolt a good whack with a hammer, also tightening its tiny bit before loosening off? i think the oberon comes with its own bolts 77150652BB
Thanks for all suggestions and interest. It is kept at my mates garage while I get mine sorted, so I only go round on Saturdays for maintenance and Sundays for riding. Hopefully will be back to it on Friday as I have a day off.
No picture of it post mullering. I will take an as is before I attempt again on Friday. I do have some deep 6-point sockets.
nearly all sockets have a "lead-in" chamfer which robs surface area - it's worth grinding this away if you can if using on a shallow hex head and/or it's potentially really tight to undo.
