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Project CB350F
McCabe-Thiele (Ted):
I had two Groundhog days when assembling my 400 cases - we live & learn.👎👎👍
magpie114:
The bottom end is back together again and installed in the frame. I've replaced the cam chain, after my blunder, with an endless chain courtesy of Ken. The front engine bolts (M10 x 74) which were missing from the bike are discontinued but got some longer bolts at the Scottish Motorcycle Show yesterday. They will need cutting to length to make sure that they don't hit the oil gallery. Decent show, had a look around the classics displays in the morning but only saw one Honda 4 SOHC, looked quite nice.
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I was going to fit the alternator today but had forgotten that the stator wire connectors were burnt. I can't see any visible signs of damage or deterioration on the stator itself and I've checked the resistance and continuity to ground which are ok. I'll solder new connectors and adjacent wiring which is fairly crispy. Seems from posts on here that the stators are generally reliable. Also one of the screws securing the inner field coil has been butchered and will need drilling out - so not quite sure what's been going on there. I've got an Electrex harness to fit later in place of the original which is showing abuse, wear and tear plus a few "modifications".
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I'm sending the rear hub to Full Circle Wheel Building this week. I've tried to remove the studs from the sprocket to fit into a new one, but they are stuck fast. Going to try again with some heat. I've screwed nuts on the ends to protect the threads but I'm concerned about damaging them as it seems they aren't available.
Laverda Dave:
Making good progress there. The sprocket studs were pretty well stuck in my hub but they did come out in the end with the application of some WD40 and I left it for a week but kept giving it another spray whenever I was in the garage (daily!).
The 400/4 at the show looks great, there's an owner with class, its a yellow one 8)
magpie114:
Due to various commitments, progress has been sporadic to say the least but now I’ve got a clear spell and hopefully I can get upto speed.
Today I fitted the pistons and barrels which have been rebored +0.5. The pistons have been individually identified to each cylinder by Trigger. Although I was a little apprehensive about doing it on my own, it was surprisingly easy and straight forward. The bores had been coated in Graphogen and starting with the two central pistons I just took my time to squeeze each ring in turn with my fingers allowing the barrels to slide down. Then I turned the engine to raise the outer pistons a little before repeating the process. Tomorrow I’ll fit the head and camshaft
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I also fitted the powder coated air cleaner/battery box and associated electrics which have cleaned up well. The regulator point gap was 0.3mm as specified. Forward and reverse continuity tests on the rectifier checked out ok.
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The HT leads are in poor condition and one of them can be rotated in the coil so I’m going to see if they are repairable following Ashimoto’s fix.
--- Quote from: Laverda Dave on March 18, 2024, 09:01:58 AM ---The sprocket studs were pretty well stuck in my hub but they did come out in the end with the application of some WD40 and I left it for a week but kept giving it another spray whenever I was in the garage (daily!).
--- End quote ---
The sprocket studs finally did come out after applying more WD40 and some heavy blows with a lump hammer.
I’ve started polishing the clutch cover using a Dremel with the plastic bristles recommended by Ken. The cover was heavily pitted and has started to come up well but needs a little more work. Its strangely boring but addictive at the same time!
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Laverda Dave:
Excellent progress there. The polishing mops are a brilliant piece of kit.
Trigger probably bored your barrel and mine at the same time!
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