Sheared bolts and bearing holders.

[Monstyr]

I have almost got my frame down to its basic structure before stripping and repainting starts.
Just one glitch though, a sheared bolt holding the centrestand.
I'm guessing that it's siezed further in so I'm not sure just how to remove it at the moment.
Any suggestions?





Also, do those bearing cups just hammer out with a drift or is there a trick to them before I go bashing away blindly.

[buell1203]

I had a similar problem. Heat and centre drilling removed the threaded portion without damage to the frame.The remainder drifted out.

I drifted the bearing cups using an alloy drift just big enough to pass through.No damage caused to the cups that way. They go bacl quite easily.

[jfh]

Drift the bearing cups out with a piece of solid bar or a substantial screwdriver (the type where the steel goes up through to the top of the handle). Should be an article in the next (or the one following that) issue of Classic Bike.

[Monstyr]

Actually, can anyone tell me where the threads are that are holding this?
I only have a parts manual to go on as the workshop manual skips over this bit.

I'm presuming they may be at the nut end at the left side of the frame mount, or is there also a threaded frame mount at the bolt end on the right side where it has sheared?

[EVguru]

One side of the centre stand is threaded. The pivot bolt screws into the stand (until it touches, NOT until it narrows the stand!) and is then locked with a nut.

The pivot bolt and the replaceable pivot tube inside the cross tube in the frame are meant to be sacrificial.

Get a slim blade (like a junior hacksaw) blade between the stand and the frame and cut the pivot bolt so you can get the stand off. The you can work on using a combination of heat, penetrating oil and brute force to get the remains of the pivot bolt and pivot tube out of the frame.

[Monstyr]

One side of the centre stand is threaded. The pivot bolt screws into the stand (until it touches, NOT until it narrows the stand!) and is then locked with a nut.

The centre stand itself can move freely with a small gap visible around the bolt, do you mean the box section of the frame is threaded? (presumably on the left side where the nut attaches)

[EVguru]

The centre stand itself can move freely with a small gap visible around the bolt, do you mean the box section of the frame is threaded? (presumably on the left side where the nut attaches)

No, one of the flattened ends of the stand is threaded (the side with the nut). Or at least it was originally, the thread may be stripped out. To fix the stand, you can either weld it up and drill and tap a new hole, or weld a plain nut to the stand and use a second nut to lock the bolt.

[Monstyr]

Thanks for that.
I've just gone out and hacksawed the broken bolt end off which has allowed me to remove the centre stand, I can now see the thread you mentioned but its long since distorted.

That leaves me with the through bolt, I can now see the spacer tube that holds the bolt too and have a deep suspicion that someone had powdercoated over this.
I've fried everything with a blow torch and cleaned it up, doused it with plusgas and will repeat this a few times.

Am I right in thinking it will now just drift out with enough force?

[unreal]

Hi, I had exactly the same problem, I tried everything. I ended up taking to Alex at NLM he shifted it with a big hammer then the hydraulic press. I had made it worse by spreading one end trying to drive it out...

But it did come out and I replaced the tube and bolt, then added a shim where I'd had to cut through.

May also be worth checking the welds on the stand, they're not that well welded and catch all the crud.

Good luck.

Simon