SOHC.co.uk Forums > CB350/400
CB400/4 ENGINE STRIP, ASSESSMENT AND REBUILD BY JULIE - NOW COMPLETE
Bryanj:
I think the machining was done on a vertical mill with a Tee shaped drive box and sized cutters plunge milled, it is after all softish alloy
Clem2112:
About the cam journal nachining....
Think Bryan has it. Honda had to have a dedicated setup to do the quantities they produced.
A fast, cheap method using a sized cutter makes sense.
The anoraks among us would like to see some period footage showing the machining of Honda engine castings.
Nurse Julie:
Did some more building today, nice little bits to play with and thoroughly enjoyed myself.
Put all the bits back in the rocker cover. These are the bits I started with
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Fitted the flywheel and took the clucth apart and gave it another clean before reassembling
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I still have to fit the clutch lifter bearing. I have one here but I ordered the wrong one, so have ordered the correct one today.
The rocker cover re assembled with the tacho drive back in, held in with a minute little circlip and new seal fitted
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Everything is all torqued up and the bottom end is now ready to go back in the frame and all the top end components are reassembled. I will refit the oil pump later today along with the neutral switch. The only thing I have not had done yet is the rebore as my pistons and rings are stuck in customs, so the rebore will be done after Christmas or early in the new year.
I must be getting somewhere because I had all the parts in 4 big Lin bins and I am now down to a very few parts in the bottom of 1 Lin bin.........getting there.
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UK Pete:
--- Quote from: Nurse Julie on December 22, 2017, 05:05:00 PM ---Did some more building today, nice little bits to play with and thoroughly enjoyed myself.
Put all the bits back in the rocker cover. These are the bits I started with
(Attachment Link)
And here is it all together
(Attachment Link)
The tacho drive, held in with a very small circlip and greased and a new seal on the outside.
(Attachment Link)
Fitted the flywheel and took the clucth apart and gave it another clean before reassembling
(Attachment Link)
I still have to fit the clutch lifter bearing. I have one here but I ordered the wrong one, so have ordered the correct one today.
(Attachment Link)
Everything is all torqued up and the bottom end is now ready to go back in the frame and all the top end components are reassembled. I will refit the oil pump later today along with the neutral switch. The only thing I have not had done yet is the rebore as my pistons and rings are stuck in customs, so the rebore will be done after Christmas or early in the new year.
I must be getting somewhere because I had all the parts in 4 big Lin bins and I am now down to a very few parts in the bottom of 1 Lin bin.........getting there.
--- End quote ---
This is really getting me in the mood for a engine build I have 2 apart and preped ready to start assembly but it's been a few years a move if house and a shit load of personal problems I really don't Ä·now where all the bits are
Well done so far I have just spent 90 mins going through unread posts on this thread . You are quite lucky as in you have access to good quality tools and triggers knowledge but I admire that you will only use him if you really have too
Keep it up julie
Sent from my SM-G930F using Tapatalk
GiannisFour:
Julie,
a question,what brand gaskets,o-rings and seals are you using?
Thanks
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