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1977 400F2 first restore project
smoothoperator:
Panic over, must learn to stop trusting my instincts and measure first. After a lot of plastigauging, both mains and big ends found to be well in spec so the old shells are going back in for another tour of duty. Started rebuilding the engine only to be stalled by another gremlin, one which doesn't rely on instinct, just eyeballs. Should have spotted it earlier however, 2 missing needles from the starter drive needle bearing. Part number is a superseded one so as the weather was nice went out for a ride to the local Honda dealer however it was a polite no can do and have you heard of David Silvers. The part is on a 2 week waiting time. Lot's of painting left to do before the weather turns.
Big ends now feel fine with some lubrication in them btw.
https://photos.app.goo.gl/QFsHMVdFrBpvn8uZ9
McCabe-Thiele (Ted):
Good news on the crank bearings a pain about the needle roller though. I'm waiting for a pair of dowels before I can fit the barrels.
smoothoperator:
New needle roller received and fitted. Joined crankcase halves together, moving on to installing the clutch side parts next. Most of these have been cleaned ready however I have yet to look at the clutch plates which are currently still in the basket untouched since I took the engine apart way back in December.
https://photos.app.goo.gl/tRHzLsapSjHFDNYS9
McCabe-Thiele (Ted):
Nice looking bolts you have!
smoothoperator:
Clutch fitted with new Koyo bearing bought through Simply Bearings at an amazing price. Oil pump fitted. Points fitted with gap and static timing set. I replaced my points plate with a second hand one but found actually that the 2 stripped threads were screws and not the back plate which is obviously harder than the screws. One way to by screws I guess. New pistons in, a job I was a bit apprehensive about but with care and patience, they actually went in without putting up a fight.
I have built the engine up on the bench so far as I don't have a bike lift and didn't want to put the pistons in while crouched down. For now I am thinking about the choice between putting the engine into the frame with just a few parts fitted, e.g. Main stand, swing arm, OR building up the frame so that it has both wheels fitted. Any tips welcomed. I took the engine out by laying the bike on its side whilst it was pretty much fully built, and found this easy. In reverse though it seems it would be easier to protect the frame by putting the engine in at an early stage, but then how does this impact on building up the rest of the bike...
Pics
https://photos.app.goo.gl/yTV3j1RgXTKCbzV3A
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