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Messages - Oddjob

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1
CB500/550 / Re: Engine teardown and inspection
« on: November 28, 2020, 10:51:16 PM »
2nd gear counter shaft is the same as the 550. Only 2 of the gears are not and that's the 1st and 5th gears or as you look at the countershaft the first on and the last on.  The other 3 gears are the same for the 500 and 550. That includes all the circlips and thrust washers. I pretty certain you could at a pinch use the 550 countershaft in the 500 so long as you use all the 500 gears and needle bearing, except of course for your wrecked 2nd gear, use that one off the 550.

I'll have a look for a spare 2nd and countershaft for you on Monday as I'm working all day tomorrow

2
CB500/550 / Re: Engine teardown and inspection
« on: November 28, 2020, 01:24:14 PM »
My initial thought was that the 500 and 550 are interchangeable, I’m not 100% sure of this without checking and I’m at work right now. The 550 countershaft was changed from the 500, hence the different part number, however I strongly suspect that the only difference was internal and not external. Some of the 500s suffered from needle bearing failure due to lack of oil, to prevent this Honda fitted a small oil pump inside the needle bearing and to run this fitted a small gear internally inside the countershaft, this I suspect is why it had to change part number. Fit the 500 needle bearing on it and I think it should fit. You’d need to compare the 500 and 550 shafts side by side to check of course but I think they are identical except for that gear, the gears however are not so you’d need to use the 500 gears on the 550 shaft. Compare part numbers for 2nd gear as that gear may be the same on both engines.

I threw 3 countershafts out last year, couldn’t see the need to keep them, however I would have kept at least one as a just in case part along with a spare set of gears. I’d need to dig in my big box of bits but I’m fairly sure I’ll have what you need. If I have you can have them foc, just pay postage which may be high as the shaft is heavy.

3
CB500/550 / Re: Engine teardown and inspection
« on: November 28, 2020, 09:41:19 AM »
20 is the thrust washer and 19 is the tabbed washer.

Were you aware that the tabbed washer is used to lock the thrust washer into place, in that the tabs don't face toward the gears , they face toward the thrust washer.

Oh and the 2 washer thing, the smaller holed washer is the correct one, I suspect that whoever re-built the box forgot where things go and put the clutch basket thrust washer onto the mainshaft instead, was there a washer behind the clutch basket?

4
Project Board / Re: CB550 K0 #449
« on: November 27, 2020, 11:26:10 PM »
I love the way they look at night. Might not be original but who cares,  if you like them that’s all that matters

5
CB500/550 / Re: Engine teardown and inspection
« on: November 27, 2020, 09:34:46 AM »
Will have a look tonight when I get home.

6
Project Board / Re: CB550 K0 #449
« on: November 27, 2020, 09:33:42 AM »
That's my point. Blue faced gauges didn't start to appear until the 550F2 and 550K3 in 1977 approx. All the early ones had green faced gauges. I personally prefer the blue faced ones and maybe a previous owner did when they appeared and changed them.

7
Project Board / Re: CB550 K0 #449
« on: November 26, 2020, 11:18:08 PM »
Not being critical or anything but the clocks look wrong, I thought they were supposed to be green faced

8
CB500/550 / Re: Engine teardown and inspection
« on: November 26, 2020, 11:10:58 PM »
The O-Ring 27 is between the bearing and the collar on the shaft, it’s really thin IIRC and isn’t visible until you remove the bearing, which I’ve only had to do once. I suspect part 19 is the eared washer with 20 being what’s called the thrust washer. I should have both those washers NOS along with every gear and shaft except 1 for a complete NOS gearbox, if so I’ll compare part numbers to see which is which.

9
CB500/550 / Re: Honda cb550k1 throttle cables with uk bars
« on: November 24, 2020, 07:28:29 PM »
The 550F cables should be the same as the 500 as it uses the same carbs in principle. However the 550K3 used different carbs and I'm fairly sure the inner cables were longer as a result. The 550K1 uses the same type of carbs as the 550F/500 so I'm thinking Wemoto listed theirs as a 550K when in fact they meant 550K3 as none of the earlier K models came into the UK except as imports.

10
Desperately Seeking!! / Re: Spring for CB400F2 steering lock
« on: November 24, 2020, 03:21:38 PM »
Good, result all round. Now just don't lose this one  :D :D

11
CB500/550 / Re: CB500K2 - Recommended Source of Plug Caps & Plugs
« on: November 24, 2020, 03:21:08 PM »
I think the straight caps for the inner cylinders are much better, for the angled caps to fit inside the recess they have to be fitted from the front, this puts the lead into an atmosphere where it's subjected to all sorts of things, mainly water spraying from the front wheel but also stones etc. The straight caps at least put the lead into a more protected position.  The outer cylinders on the 550 were routed by Honda so that they approached the plug from the rear, the lead was clipped to the breather cover and one of the camcover bolts which to me looks far better cosmetically than having all the HT leads dangling from the front of the engine

12
Desperately Seeking!! / Re: Spring for CB400F2 steering lock
« on: November 24, 2020, 03:12:28 PM »
Was it the right spring?

13
CB500/550 / Re: CB500K2 - Recommended Source of Plug Caps & Plugs
« on: November 24, 2020, 12:35:16 AM »
You mean 2&3 Graham don’t you

14
Desperately Seeking!! / Re: Spring for CB400F2 steering lock
« on: November 24, 2020, 12:19:48 AM »
You get it yet?

15
CB500/550 / Re: CB500K2 - Recommended Source of Plug Caps & Plugs
« on: November 23, 2020, 06:41:42 PM »
The OE caps are as you say Phil, however I found replacing the inner ones with straight caps looked better and it also allowed the coils to be turned backwards so the leads travel over the engine instead of hanging down at the front getting all the water etc thrown on them.


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