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CB400/4 Front Wheel Speedo Drive

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THUNDERDOWNUNDER:
Good morning all , I took my front wheel off to fix a flat tyre and ended up taking the Brake Disk off to clean and paint centre .Well while I was at it I decid to clean up front brake caliper . All that is now done  but just wondering if I should grease wheel  bearings and grease or Oil up Speedo Drive .  I had a go at undoing the Centre bolt but after 45 years I won’t budge . Any ideas guys or should I just leave it alone .ie if it’s not broken leave it alone . Thanks for reading .

TrickyMicky:
As a firm believer in "If it ain't broke, don't fix it", The wheel bearings are of the supposed sealed for life! type, so, if they are not making any untoward noises, there's no play in them, and there's no grease leaking from speedo drive, then definitely leave well alone. If you overpack bearings and their housings it will actually cause problems. If your tyre wasn't flat and was maintaining its pressure, would you have fixed a puncture that wasn't there? Stay Upright. Mick.

SeanFD:
What centre bolt are you talking about?

The speedo drive is fairly easy to dismantle and reassemble, apart from the worm drive, which I'd leave alone. When I did mine the grease in there was pretty mucky, so if I was this far alone, I'd just clean it out and put fresh grease in.

THUNDERDOWNUNDER:
When I took front wheel off I thought dismantle Speedo Drive and re grease but can’t see how to do it . Took the four bolts holding brake disc out . But that’s as far as I have gone . The spindle bolt  wont undo and that seems to hold Speedo dive in place ?

hairygit:
Yep, the spindle needs to come out to release the Speedo drive.

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