1978 BMW R100T Restoration

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Willopotomas · #16 Post by **Willopotomas** » Sun Jun 02, 2013 10:19 am

Falcopops wrote:I'm rapidly coming to the conclusion that you BMW fetish blokes are all a bit mental!

Well, mix that with a thing for old Brit bikes and you'll be about spot on.

I'd like a boxer. This one is my dads. I've been trying to get him to hand it over for years, but he seems reluctant to do so for some reason.

Willopotomas · #17 Post by **Willopotomas** » Sun Jun 02, 2013 9:22 pm

Made steady progress today.

We would've got more done, but BMW being BMW have made the swingarm mountings so German, we need to buy the tool to get the nuts off. Not one of my sockets fits the damn lock nuts! Eh well. At least the bevel box came off with ease and the starter motor is out.

MartDude · #18 Post by **MartDude** » Sun Jun 02, 2013 10:08 pm

Willopotomas wrote:
Falcopops wrote:I'm rapidly coming to the conclusion that you BMW fetish blokes are all a bit mental!
Well, mix that with a thing for old Brit bikes and you'll be about spot on.

I'd like a boxer. This one is my dads. I've been trying to get him to hand it over for years, but he seems reluctant to do so for some reason.

There's definitely something pleasing and satisfying about the boxer concept; perhaps it's one of those things where you either get it, or you don't

Willopotomas · #19 Post by **Willopotomas** » Mon Jun 03, 2013 6:15 pm

MartDude wrote:perhaps it's one of those things where you either get it, or you don't

And we get it!

Willopotomas · #20 Post by **Willopotomas** » Sat Jun 08, 2013 10:11 pm

Well that wasn't as daft as I thought it was going to be. The fun begins when I crack the box open!

Willopotomas · #21 Post by **Willopotomas** » Tue Jun 18, 2013 9:34 pm

Finally managed to get the output pinion off the shaft. Didn't-arf come off with a bang!

After a little heat to the cover, and some gentle persuasion the cover popped off.

Only to find that what I though to be the initial problem was in fact all ok and working as it should.. Which means the gears are stuck on their respective shafts. Bollux.. Full box-rebuild was not on the agenda.. ARSE!

HisNibbs · #22 Post by **HisNibbs** » Tue Jun 18, 2013 9:52 pm

What did you use to get the output pinion off the shaft? I've broken my puller on mine despite heat and a sharp tap or two....

Willopotomas · #23 Post by **Willopotomas** » Tue Jun 18, 2013 10:24 pm

I initially cut a 5mm plate on the waterjet and tried it with my two leg puller I've got.. Promptly bent the plate and broke the monkey metal puller.. So I resorted to plan B, which was to cut a thicker plate. This time 15mm steel bottom and 30mm aluminium top as the bolts I had were 50mm long. Coupled this with a kin'strong three leg puller borrowed from the garage next door, and lots of force, it came off with a bang.

Sharp belts to the top of the puller can help to shock the taper free, but it appeared to have little effect. We didn't use any heat.

#24 Post by **mangocrazy** » Wed Jun 19, 2013 9:43 pm

Willopotomas wrote:I initially cut a 5mm plate on the waterjet

Hmmmm - waterjet cutter.... Are you able and/or willing to do furriners...?

I need a plate/flange cutting out of 4 or 5mm mild steel sheet that's 150mm / 6" square with a hole in the middle of it to just slide over 4" bsp pipe (i.e. 4.5" o/d). The plate will get welded to the pipe; its for a cold air feed on a woodburning stove I'm installing in the French gaff.

We have firms that will do waterjet and laser cutting here in Sheffield, but they have a minimum charge of between £70 - £100 and I only need one plate...

D-Rider · #25 Post by **D-Rider** » Wed Jun 19, 2013 10:41 pm

mangocrazy wrote:
Willopotomas wrote:I initially cut a 5mm plate on the waterjet
Hmmmm - waterjet cutter.... Are you able and/or willing to do furriners...?

Are bears Catholic? .... no that's not right .....

......................

.......................

Does the Pope shit in the woods? ......... no that's not it either .......

anyway whatever the saying ..... you might find the solution to your problem here

Willopotomas · #26 Post by **Willopotomas** » Thu Jun 20, 2013 9:31 pm

£70-£100 for one plate.. Robbing barstools!

Yes mate. I'm about to send you a PM with details.

Willopotomas · #27 Post by **Willopotomas** » Sat Jun 29, 2013 6:48 pm

At least some progress is being made in the workshop.

New gearbox is in. The original requires more extensive renovation, so was far simpler (and cheaper) to just lob another box in.

Also re-fitted the starter motor after a brush and commutator clean up. A common fault for these bikes is poor starting, some of which is down to the motor brushes.

And then the air filter box (with new filter) and swingarm was put back on. Still loads to do, but closer to finish than we were this morning. Also re-fitted the front brake master cylinder as this had gummed up. Can't seem to get it to bleed, so may have to take it all apart again. I hope not.. Was a bit of a twat..lol.

Willopotomas · #28 Post by **Willopotomas** » Fri Jul 19, 2013 5:49 pm

Runs.

Click for video