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Messages - Oddjob

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3271
CB500/550 / Re: CB550k1 US Import - UK registration
« on: August 21, 2022, 08:08:28 PM »
Then why is the groove around the camcover flat when the o ring is round, until someone opens a hub up and lets us know exactly which way round it is we’ll not know for certain.

3272
Project Board / Re: The rebirth of Lazarus
« on: August 21, 2022, 05:34:33 PM »
Yeah top hat goes in on the flange side. Correction, it's the other side that has the rim of the hat so to speak.

3273
CB500/550 / Re: 550 F2 started!
« on: August 21, 2022, 05:29:52 PM »
It's solid so that limits what it can be. Not a casing dowel as those are hollow. To small to be a crankcase dowel as those are far bigger.

Few things come to mind.

Locating pin from the crankcases for the gearbox needle roller bearings.
Gear fork engagement pin, goes under the circlip.
Starter clutch as Julie says. Should be 3 in there.

My money is on the locating pins.

3274
CB500/550 / Re: CB550k1 US Import - UK registration
« on: August 21, 2022, 03:55:44 PM »
Flat side on the hub.

So you think flat side down?

Yet Phil says flat side up and was born out by seeing that was it way it came apart. I'm more and more convinced that I remember it being flat side up. If not why have a flat side at all, just use a normal round O ring.

Maybe someone who's taking a wheel apart soon can report back and solve the mystery.

3275
CB500/550 / Re: 550 F2 started!
« on: August 21, 2022, 03:52:40 PM »
Wrong sort of issue Roo. It was TBH a bad idea of B&D and clearly done for cost purposes. The mod I'm doing will improve it's robustness and should outlast the life of the workmate. Like all things though it can be a bit trial and error.

3276
CB500/550 / Re: CB550k1 US Import - UK registration
« on: August 21, 2022, 01:14:39 PM »
Been thinking about this and I still think it's flat side up, I think it's that way so when the sprocket carrier goes on it doesn't risk flipping the o-ring out of the groove as it gets pushed back.

3277
CB500/550 / Re: Well that was a surprise .....
« on: August 21, 2022, 01:02:21 PM »
I'd sell that and refit the old contact plate and Hondaman system. If that fails you're stranded, if the Hondaman system fails you can go back to points really quickly and by the side of the road.

3278
CB500/550 / Re: 550 F2 started!
« on: August 21, 2022, 01:00:50 PM »
Because they essentially just used an interference fit with the bolts, they used a threaded bolt and just forced it into the wood, this created it's own thread as it got pulled in. This was fine BUT the hole I drilled to accept the old bolts was ever so slightly bigger than the B&D hole, I think they used imperial drill sizes and I used metric. So the bolts were ok until you went to tighten them and then they started to spin. Feeling that eventually the top would come off I decided to devise a new way of securing the bolts so I enlarged the area around the bolt hole with a hole cutter so a 8mm shouldered nut would sink into the wood and not get in the way. Turned out that worked ok BUT the bolt head underneath now fouled the winding mechanism. It stopped it going back as far as it used to. I should in hindsight have copied the same style of bolts as B&D used, they were a mix of domed headed bolts and countersunk bolts, it's the countersunk ones that I didn't copy, they sink into the brackets and keep out of the way allowing the back panel to slide back further.

New bolts ordered, countersunk ones.

Also the new low level feet didn't fit, the head (the part that sits against the floor) was too big to fit inside the gap in the flip out feet (high level), I need to see if I can trim the head size down so they fit inside the gap as the high level feet fold up. It's 80% done, it's just not there yet, looks really nice though.

3279
CB500/550 / Re: Well that was a surprise .....
« on: August 21, 2022, 12:48:19 PM »
Yeah CMS sell them as well.

3280
CB500/550 / Re: 550 F2 started!
« on: August 21, 2022, 12:41:18 PM »
The rebuild did not go well. The frame is built but the wood isn't mounted yet, my idea of improving the way it mounted onto the frame just didn't pan out. So more parts on order and try again. Getting a little sick of this now  ;D ;D

3282
Member 4 Sales / Re: 400 bits
« on: August 20, 2022, 09:16:51 PM »
Preferred the 500. My mate was mad on them, he had quite a few at one time, even had one with a single digit frame number, No7 iirc. Regularly went on the back of his 500, used to pull wheelies just going onto the power band.

Don’t see many 400s, the 250 was far more common.

3283
CB500/550 / Re: CB550k1 US Import - UK registration
« on: August 20, 2022, 09:10:16 PM »
You may well be right Bryan, I was working it out logically, although to be honest most grooves for o-rings are flat

3284
CB350/400 / Re: Master cylinder hone?
« on: August 20, 2022, 04:02:17 PM »
Never heard of honing one and TBH if it needed it it's probably goosed anyway. A really good clean is normally all it needs and checking of course for score marks which caused the leak in the first place.

3285
CB500/550 / Re: CB550k1 US Import - UK registration
« on: August 20, 2022, 03:57:26 PM »
Flat side upwards IIRC. If it was flat side down the round side would face up, might as well use a fully round ring in that case.

Make sure you grease the ring where the bearing is located as well as the metal surface that rubs against it on the sprocket carrier, there should be 4 sunken grooves in the carrier, make sure they are full of grease. As the sprocket gets pulled forward by the chain it exerts so much pressure the rubbers inside the hub compress, the carrier moves on that surface slightly forward and gets returned by the pressure from the rubbers, if no grease everything wears and eventually the hub starts to oscillate and that means a new hub.

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