SOHC.co.uk Forums > CB350/400
My New Project arrives after a 44 year wait!
Johnny4428:
33607-377-670 Part No listed for these models Dave.
Oddjob:
The stays whilst looking like the same part as fitted to the 500 are not for the 500, I think the arm is longer but the main difference is that the part has an earth connector fitted to it on the underside, the 500 doesn't have that. The 500 is the same as fitted to the early 750s IIRC.
If the arms were the same length I'd say they would be an improvement on the 750/500 brackets due to the earth wire fitting, tidier.
The brackets BTW are listed on the 400F.
Laverda Dave:
I got back out into the garage today after a week's break (although time indoors was spent wisely ordering various parts) and before the next deluge of rain. I am contemplating halting the bike rebuild and building an Ark :o
I should be collecting the frame next week from Microblast, it was actually ready on the 23rd December, only three days after I dropped it off but then I dropped off the exhaust flanges for a silver creokote finish so will collect everything next week. That's one item completed and the first bit of visable progress.
Today I checked over the gears for chipping etc, all looked good until I found really bad wear on the low gear of the countershaft, it actually wobbles! Is this normal? I noticed the gear has an internal bush and this is not available as a separate part, as is the gear itself! I attach a photo but obviously you cannot see the wear.
Following that discovery I inspected the main shaft, the gears are fine but the needle roller bearing housing has been cracked, I can only assume the PO did not align the crankcase dowel with the bearing housing and used a hammer instead to mate the cases, how else could that damage have been caused, i have never seen damage like that before unless an engine has siezed or blown up! The end of the main shaft also looks very dubious, it appears the case hardening has worn from the shaft (assuming Honda case harden the gear shafts?) although the damage does not go all the way round the end of the shaft just a third of the way round it which is strange. I don’t know if this is a result of the shaft running off square due to the bearing housing damage although all the neede rollers in the bearing cage itself are fine and turn freely with no binding?
So, what to do now, do I get a new s/h main shaft or is this wear considered normal, the photo makes it look worse than it is although I can feel a very slight lip with my finger nail on the end of the shaft were the damage is. The same applies to the 'wobbly' gear on the countershaft. I know Steve at 400Bits has some gearbox parts but I will wait until the experts on here can offer some advice first.
The bike didn't look to bad when I first got it but the more I delve into it the worse it gets especially in the engine department, I'm glad I only paid £500 for it :(.
Laverdaroo:
I think I might be tempted to replace the lot if it’s possible Dave, the damage sounds too far gone for my ‘peace of mindometer’ if it was me. It’s apart so you might as well. You’d be kicking yerself it it goes pop after all that work. Expensive and frustrating but it sounds like a no brainer. No doubt somebody with more marbles might be along soon to offer better advice than firing the parts canon but as you know, it doesn’t take much to knacker things when they’re not doing what they should through wear!
Sent from my iPhone using Tapatalk
Nurse Julie:
They need replacing Dave.
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