Another Speedo Question

L.A.B. said:

wjrich said:

Interesting also was that when I pulled the drive off the axle, there was no washer/seal, and I was looking directly at the bearings and cir clip which didn't seem correct to me.

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The OB MkIII rear wheel parts diagram shows the seal (06-5662, item 25) in the wrong place, it belongs the other side of the bearing, the AN diagram is wrong too.
The MkIII workshop manual exploded diagram of the rear wheel does show the parts in the correct order and if you check your sprocket assembly then that's where you should find the seal? :

wjrich said:

Looking at the Old Britts/AN exploded diagram, seems as if the washer/spacer shown in the pic with the drive still stuck to the sprocket should have been placed between the drive and the sprocket…

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The large diameter washer [32] belongs where it is shown, spacer [11] fits between the sprocket bearing and the drive gearbox.



I can't be sure, but from your photo I think the spacer [11] might still be stuck in the drive gearbox?

Also, if I remember correctly, my MkIII's assembly needed an extra spacer shim to prevent the drive gearbox from being forced against the sprocket when the axle nut was tightened.

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Unfortunately I sometimes have to go a long time between the short hours I get to work on the bike, so here's where I am at.

I ordered up a new speedo gearbox, and began the reinstall process. My order of assembly was sprocket, spacer (06-5547), speedo drive, then thick washer (06-5549), washer on outside of swing arm, nut on to axle. Tighten axle to 80 ft/lbs.

The result is that when tightened, I completely tighten the sprocket as well. What am I missing here?
The thick washer I mentioned above is the same washer seen circled in black in the picture of the sprocket above.

Also, I am lucky enough to get my wife to pull the wheel off as I tip the bike to the left when removing the rear wheel. She's gone for a coulpe of weeks- is there a trick to re-installing the wheel without another person helping?

wjrich said:

My order of assembly was sprocket, spacer (06-5547), speedo drive, then thick washer (06-5549), washer on outside of swing arm, nut on to axle. Tighten axle to 80 ft/lbs.

The result is that when tightened, I completely tighten the sprocket as well. What am I missing here?
The thick washer I mentioned above is the same washer seen circled in black in the picture of the sprocket above.

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I think it may need an additional internal spacer as mine did, to prevent the drive gearbox from being pulled up against the sprocket when the nut is tightened.

wjrich said:

Also, I am lucky enough to get my wife to pull the wheel off as I tip the bike to the left when removing the rear wheel. She's gone for a coulpe of weeks- is there a trick to re-installing the wheel without another person helping?

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One reasonably able person can do it easily enough, (some of us don't have the luxury of a wife or helper, so we have to learn to do these things without any assistance) by standing on the left side with the bike on the main stand and the side stand also extended, the left hand holding the right handlebar grip with the forks turned to full right lock with the front brake held full on as the bike must be prevented from rolling forward (chock the front wheel if in any doubt) pull the bike over to the left until the side stand touches down and is partially supporting the bike, then use your body to support the leant-over bike whilst you use your right hand/arm to lift the rear wheel (which you have already thoughtfully propped up within reach next to you) over the bike and slot it into position as you slowly raise the bike upright. The same technique can be also be used to remove the rear wheel.

I suggest you do a couple of practice runs first, to get used to supporting the weight of bike, if you suffer from any kind of back trouble then perhaps it wouldn't be wise to attempt this.