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Disk brake jammed

PostPosted: Mon Apr 25, 2022 8:18 pm
by birdbmw
Due to my speedometer not working correctly I decided to investigate.

I had to pull the worm small gear out of my disk brake I saw extreme wear on the worm.

Due to this I decided to strip out my disk brake and replace every worn part

My brake disc had already previously had the three holes enlarged and the circlip removed. in fact the disc is very loose on the three location pins.

But I cannot split the two halfs I suspect that the speedo worm gear has broken and is jamming the removal of the two parts.

I have tried using a soft punch hitting the back of the brake disc, does not work.

Any idea how to split the two pieces?

Re: Disk brake jammed

PostPosted: Mon Apr 25, 2022 10:19 pm
by gp200ts1
Have you taken the spindle out?

Re: Disk brake jammed

PostPosted: Tue Apr 26, 2022 10:08 am
by birdbmw
Have removed the spindle, oil seal and one bearing.

According to Stickys book I have used a block of wood to hit the thick part of the brake disc.

The brake disc is loose on the location pins!!!

Re: Disk brake jammed

PostPosted: Tue Apr 26, 2022 10:59 am
by Storkfoot
Possibly the rubber seal was snagged when the hub was put together. If it is ripped it may well be catching as you try to separate the hub.

Re: Disk brake jammed

PostPosted: Tue Apr 26, 2022 5:21 pm
by hullygully
If you've being riding with the disk assembled, then to me nowt can be catching or it wouldn't spin............ :?
when was the last time you rode with it on lammy bud?

Re: Disk brake jammed

PostPosted: Tue Apr 26, 2022 7:20 pm
by birdbmw
I have managed to separate the two halves by using a piece of wood and a lump hammer.

The problem was the speedo gear had broken up jamming the disc.

Re: Disk brake jammed

PostPosted: Wed Apr 27, 2022 9:56 am
by hullygully
happy daze ;)