SOHC.co.uk Forums > CB350/400

1976 cb400F generator rotor puller size

<< < (6/6)

DayvW:
I will gladly do that (so far feel all I have done is gained loads from people on this forum and yet to give anything back -and I have loads more questions yet  :)).  One other thing is that when undoing a bolt on the end of the primary shaft (I think it was) with the crank locked by the OddJob technique (as I now call it!), whilst applying load the shaft actually skipped under the chain.  By just resting my finger on the chain on the sprocket it was enough to hold it and the bolt came undone, but it tells me the chain is toast.  Also - on another post I mention a graunching noise at certain (generally lower) revs that I have yet to identify - but I think may have been the primary chain skipping (a suspicion that also hastened this strip).  Having said that the gears and dogs all look fine, no chips or wear that I can disern - so I'm assuming that if this were the case that the chain took the brunt of any scraping.

DayvW:
The graunching noise was when the engine was under load - like pulling away, sometimes after changing up.  You could sometimes stop it by snapping the throttle off then on.  At tick-over there was a kind of slapping nose which may have been the carbs out of balance, timing chain - or - indeed - perhaps the primary chain slapping.  I'll take a look for that gouging - cant recall seeing anything - but then I wasn't looking.  One end of each of the primary chain guides are worn - but (1) they appear to be discontinued and (2) I guess a knackered chain will have worn them and that a nice shiny new one wont.

fisjon:
I would change the bearings as a matter of course, if one is on it's way, disturbing it during a rebuild is the quickest way of pushing it 'over the edge' and you just don't want to do another strip down and rebuild to replace a whining bearing.
They can be expensive if you buy Honda originals, but each bearing has a number on it.
Take that number (and the bearing) to a good bearing supplier and tell him it is for a high revving Honda and he should be able to match the bearing exactly, at a fraction of the cost.
All bar one of the bearings that went into my cb650Z were made in Taiwan. Taiwan supplies Japan with bearings for the major bike manufacturers. You can get the same bearing in a different box for half the price!
 

DayvW:
I'll check those later - thanks for the tips re other suppliers of bearings - well worth bearing in mind (pun not intended :-[).

Navigation

[0] Message Index

[*] Previous page