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OAP Ted's CB400F2 rebuild - engine not run for about 12 years.
McCabe-Thiele (Ted):
A brief recap about my previous crankcase assembly fails.
Groundhog Day 1 - sticking conrod so seperated them again.
Groundhog Day 2 - gearshaft endfloat so seperated them again.
After a fitful night sleep dreaming about a potential groundhog day 3 on the crankcase halves assembly today I went for it and assembled the cases again.
I ensured there was some Hondabond on the places where the gearbox bearings sit in the casings - ensured bearings were pushed inwards from the outside to reduce excess movement.
All bolted together like a well practiced routine - everything is hunk dorey so then came to fitting the primary gear shaft - never had any issues previously until this time when the shaft did not want to pass into the primary gear hub centre. (I'm starting to think - the new primary bearing is just making everything a bit tighter fit)
After much sweating and making no progress I decided to try to rotate the crank a little to ensure the primary chain was seated nicely on the crank end. Then as if it was all a bad dream it slotted in nicely. Spacer - second new bearing pushed in place - end circlip - end spacer & gear all fitted.
The only real casualty of my previous failures is the nice paint finish on the crankcase halves has been removed in paces when taking off the Hondabond with thinners.
I will do some masking up and get the cases re-painted before I fit the casing unit into the frame.
I will sleep soundly tonight lol
taysidedragon:
Well done. Progress at last. 👍
Sesman:
Stick with it Ted. Nothing in life worth having comes easily.
philward:
Your getting there Ted - it will all be worth it!
McCabe-Thiele (Ted):
This afternoon I fitted the pistons making sure it was impossible to drop a circlip into the engine as I progressed. Trigger had numbered the positions 1,2,3 4 on the tops with his marker pen.
Fitted innermost circlip on the bench then worked my way outwards fitting number 2 & 3 pistons so that the second clip could be accessed from the ends. Then lastly fitted numbers 1 & 4 all have the letters "IN" facing the inlet side of the engine.
Finally covered up the top of the engine to keep out dust etc finally placing an inverted cardboard box in place ready for Monday when my brother will help me fit it into the frame.
Just noticed a small run in the engine paint I'll get that sorted next - turned out to be an oil drip!.
pistons fitted to rods by Macabe Thiele, on Flickr
wrapped ready for fitting in frame by Macabe Thiele, on Flickr
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