SOHC.co.uk Forums > CB500/550
Speedo Drive 1972 500 K1
Charliecharlcomb:
--- Quote from: Oddjob on November 16, 2022, 02:06:21 PM ---If I was giving one piece of advise on doing this Charlie it would be to make sure the screwdriver you are using to remove the grub screw fits perfectly. It's made of brass ( I think) and it's very soft and it's very easy to round it off with an ill fitting screwdriver. A little heat when removing it can't hurt as well. The bung in the end is a press fit, it's knurled so don't try to spin it out, the only way I found to get it out is to use the drive gear to push it out, that can be a little daunting as the small tang for the cable is all you have to press against, it's possible though. So remove the large seal first, remove the circlip holding the drive bevel in place and the shim and the drive bevel, then remove the grub screw, press out the drive gear and you can finally remove the seal on the drive gear then.
Got 2 of mine part right now, not decided on a grease yet but leaning towards using MolyD due to it's high loading properties but feel free to use what you think is best for you.
--- End quote ---
Great advice and I feel properly warned. Thanks Ken!
P.s. Has anyone ever replaced the seals in the speedo drive retainer pressed steel plate 44641-341-000 and know what the replacements should be?
Bryanj:
There are no seals on the drive plate so no idea what you are on about
Oddjob:
There are 2 seals fitted to the speedo drive Bryan. The large one which fits against the wheel part of the drive and is clearly visible and a smaller one hiding down the cable shaft. Both seal the grease in and dirt out so to speak. Not so much an oil seal but a grease seal.
Bryanj:
Yes i agree but not on the drive plate attached to the wheel which is what that part number relates too.
That number is also the later type which is different to the very early 750 but will also fit the early ones with the appropriate chrome cover
Charliecharlcomb:
--- Quote from: Bryanj on November 16, 2022, 03:29:58 PM ---There are no seals on the drive plate so no idea what you are on about
--- End quote ---
It looks like the top piece is rubber mounted so I'm guessing it's not a seal, more like a cushion. See photo
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