1962 Superhawk Restoration: Here I goSteve
... and why is it that if you had just wafted a bit of paint at it over rust and dirt it would have fitted right first time?.... Life's just not fair some times. I'm having to strip the new paint of my lovingly restored CL77 frame because I didn't actually check what the front seat mount should look like. The clever PO had removed it completely for me. Now I have a second 'parts' frame (which is actually better than my 'best' frame and has a matching engine number) I see the error of my ways. Still, it keeps us off the street. :-) G '60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160 '66 Matchless 350 '67 CL77 '67 S90 '77 CB400F I've got an oil leak on the right side of the engine. It seems like it's coming from behind the rotor but I can't seem to locate it's direct source. Once it comes out it kinda gets everywhere at once.
The lower case was split and reassembled with hondabond and brand new seals. The leak is brand new along with them. Any ideas on what to look for as I take a second round at trying to solve this? I've read that the starter sprocket seal is the culprit sometimes, thought mine seems to be just fine (and new). Maybe some Hondabond there if I don't find anything else? I'm concerned because the wind is blowing the leak onto the chain as I ride, throwing oil onto my rear tire. Massive safety concern. I need to get it fixed by Friday night so I can ride to the meet in Auburn on Sat. Current restoration: 1962 CB77
http://www.flickr.com/photos/1962_cb77_restore/ i would pop the rotor and starter sprocket off and inspect the new seal. It's possible that the garter spring was displaced as it was assembled. Then I'd slip the starter sprocket back in place and see how well it appears to seal on the shaft and into the crankcase.
You could probably fire it up with the rotor off and the starter sprocket in place first to see where the oil appears to be coming from. Is the top end getting oil? I'd hate for there to be a blockage to the top end that's causing over oiling at the bottom end. Good tip on running the motor without the rotor. Any tips for inspecting proper oil flow to the head besides peeking in the valve covers?
Current restoration: 1962 CB77
http://www.flickr.com/photos/1962_cb77_restore/ Not that immediately comes to mind. If you loosen the caps before you fire it up, and then pop a couple off and see if there's oil splashing around at the top while you watch for leaks at the bottom end.
If the top end is dry, you could crack the cam covers loose and see if they weep. if there's no oil leaking out with loose cam end caps, there's a problem with oil getting to the top end, but I'd expect the problem to be in one of the two oil seals at the crank end. LM may have a more conclusive way to check. He has way more experience trouble shooting street bikes than I do.
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