SOHC.co.uk Forums > CB500/550
Planning ahead - fitting the primary drive unit back in place'
McCabe-Thiele (Ted):
I was worried about damaging the end of the shaft.
I guess with my current back pain my overthinking has become worse. 😭😭😭
Saw a Chiropractor on Tuesday who pummels the hell out of me for an hour. I have not been in so much pain with my back for decades good news is it's not skeletal "just" soft tissue damage FFS.
Oddjob:
That shaft is hardened steel Ted, just use a piece of scrap plate between the hammer and the shaft and you'll not damage anything. Plus I must have 5 or 6 of those shafts spare lying around if the worst happens.
McCabe-Thiele (Ted):
Done - bearing & gear fitted as you said Ken just a few taps of the hammer.
I need to source a new circlip - are SS ones worth the few pence extra DIN 471 whatever that means or A2?
Oddjob:
Stainless steel are ok to use Ted, always worth a few extra pennies in my opinion.
McCabe-Thiele (Ted):
I've fitted the new primary drive bearing into the left side of the lower casing (oil pump end) - it went in pretty easily using my drift tool.
The washer, new bearing, spacer & gear is fitted to the primary gear shaft.
Looking at the other end of the shaft - in the middleish section there is a circlip, then a plain washer then the collar/spacer followed by the needle roller - the hub then fits onto the starter gear end with the damper unit. End circlip can also be fitted beforehand as I have fitted new drive cushion rubbers.
When I have assembled the casing halves & torqued the bolts up I can then slide the shaft through from the clutch side (right hand) taking care when tapping the shaft in place making sure the washer, spacer & needle roller are aligned centrally as it's tapped through towards the previously fitted bearing on the oil pump side.
At this point some careful leverage is needed to align the shaft with the bearing.
Does this sound right ?
I have an 18 month old tube of Hondabond that appears to be still soft will this be okay or do I need to buy a new tube?
My back has improved I hope to fasten up the cases in the next week or so.
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