Author Topic: CB 500 Four (1972?) Full Restoration (Read 138431 times)

MickB · « **Reply #150 on:** June 03, 2014, 01:25:51 am »

Where exactly do I measured the oil pump cams. Can someone please advise where I'm meant to insert the .14 feeler gauge. The manual says replace the oil pump if more than .14, but doesn't advise where to measure.

I presume it's as the inner lobe goes past the outer lobe at their respective highest points (see photo)

MickB · « **Reply #151 on:** June 03, 2014, 01:31:41 am »

In the photo the inner lobe is at about 6 o'clock and about to pass the rise of the outer lobe.

Is it at that point where the measurement takes place?

dave500 · « **Reply #152 on:** June 03, 2014, 01:48:41 am »

no,more like the position at 9 oclock,even if its a little worn they still pump plenty.

MickB · « **Reply #153 on:** June 03, 2014, 11:55:05 am »

Thanks Dave I tried there and I couldn't get a .14 feeler gauge in there.

dave500 · « **Reply #154 on:** June 03, 2014, 12:33:29 pm »

.35mm or .013 inches,sounds like yours is tight enough.

MickB · « **Reply #155 on:** June 12, 2014, 03:17:17 am »

Today I started with this

And after doing this

And this

And installing new bushes in both ends

And installing new brushes after cleaning the armature up

b

The new bush

I ended up with this

Tomorrow I'll finish the oil pump

MickB · « **Reply #156 on:** June 12, 2014, 03:22:25 am »

This was the end of the 12th day of winter 20 Celsius. Worked in shorts and tshirt.

Sunset

Stev-o · « **Reply #157 on:** June 12, 2014, 05:41:10 am »

Great job on the starter. Wish it was winter here, too hot!

MickB · « **Reply #158 on:** June 13, 2014, 01:15:54 am »

Oil pump finished

Before

After

Now the hard part.

Can someone help me, what am I missing, I've walked away after pulling all apart cleaning, oiling and reassembling I can't see what I doing wrong. There's always tomorrow.

MickB · « **Reply #159 on:** June 13, 2014, 09:07:38 pm »

I think I've cracked it, I was trying to install the cogs from the incorrect end.

Can someone please advise does this look right?

Regards

Mick

MickB · « **Reply #160 on:** June 13, 2014, 10:08:11 pm »

Don't take any notice of the gunk, I'm still to fully clean the cogs

Regards

Mick

MickB · « **Reply #161 on:** June 14, 2014, 12:24:49 am »

Got lots done, I'm really keen to get this finished.

Today painted parts, gearbox, cleaned pistons ready.

Big step today

Da Daa

Crank fits beautifully.

Gearbox is the hard one and I've misplaced my manual.

Regards

Mick

Oddjob · « **Reply #162 on:** June 22, 2014, 04:48:28 am »

Mick those markings you can clearly see on the crank are the ones I was referring to in the other thread. They look like they are all A1 with a 1 on the end, please confirm that.

Also no idea why nobody has mentioned this before but the seat isn't off a 500, the shape of the pan is wrong, the handbook doesn't locate there and there are rubber cushion stops missing. Get some advise before you do any more work on the seat or you may find you've wasted a lot of time and money on something that doesn't fit.

Oddjob · « **Reply #163 on:** June 22, 2014, 04:59:15 am »

Also one thing I noticed is that non of the cam covers appear to have a rev counter drive fitted. Is this somewhere else in the boxes or are you missing that piece?

MickB · « **Reply #164 on:** June 22, 2014, 11:40:05 am »

Oddjob the crank has all all A1 markings, the seat is (I'm pretty sure) off a 500, I'd removed all the rubbers. But I'll double check.

Thanks for your advice.

Regards

Mick

MickB · « **Reply #165 on:** June 22, 2014, 11:41:09 am »

Oddjob I bought a tachometer drive and the cap.

Regards

Mick

Oddjob · « **Reply #166 on:** June 22, 2014, 11:55:23 am »

MIck seat is most definetely not off a CB500K, there are or seem to be 2 seat pans in the pics, neither are even remotely close to being off a 500. The first pic I have no idea what it is, the second is probably off a CB360 as it seems to be stamped with 369 and that's the CB360 model code.

Here's my NOS CB500K1 seat just before I sold it, look at the layout of the rubbers, the placement of the handbook pouch and the place where the hinge bar would go, not there on that pic but you can see the 2 bolts it goes onto.

This is a CB500K2 seat, same layout, only the seat cover pattern changed.

If I had a CB500K0 seat it would be identical except that never got the handbook pouch and the seat lock plunger was much different as it used a different locking system.

Oddjob · « **Reply #167 on:** June 22, 2014, 12:16:11 pm »

Ok some more observations.

You seem to have a CB500K0 frame but the engine isn't. Or at least the engine your using isn't, the K0 frame and engine numbers all started with a 1, the K1 started with a 2 as did the K2. However the clocks seem to be off a K2 as the K0 and K1 used much smaller clocks, nothing at all like your working on. You may need to check to see whether they will fit the top yoke as the K2 used a different mounting plate to accommodate the larger clocks.

It's coming on though, starting to look the part.

MickB · « **Reply #168 on:** June 22, 2014, 05:09:06 pm »

Oddjob Engine is marked Cb500E 2......

Am advised built in '72 and probably registered in '73.

Regards

Mick

MickB · « **Reply #169 on:** June 22, 2014, 05:10:13 pm »

Clocks are off a later cb500/ 550 I believe

Regards

Mick

Oddjob · « **Reply #170 on:** June 22, 2014, 11:58:25 pm »

Yeah I read that Mick, I have a copy of Bryans build date list so I was aware of how old it was. My comment was that the bike is a real mongrel of the 500 family ( no offense) frame is a K0 as it begins with a 1 and is about 1 year older than the engine, engine is a K1 and clocks are off a K2. Nothing at all wrong with that and I'm not mentioning the forks

MickB · « **Reply #171 on:** June 23, 2014, 12:20:01 am »

It's a mix and match as best I can in Oz, very few 500s left.

I hope you're wrong about the seat

Regards

Mick

MickB · « **Reply #172 on:** June 23, 2014, 12:47:18 am »

£10 just sent

Thanks Ken

Mick

Regards

Mick

MickB · « **Reply #173 on:** June 23, 2014, 12:58:47 am »

Sing out if post costs more and I'll transfer. M

Regards

Mick

MickB · « **Reply #174 on:** June 23, 2014, 02:37:43 am »

Oddjob, I'm amazed I just got in Oz a brand new CB500 seat never used.

Regards

Mick

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Author Topic: CB 500 Four (1972?) Full Restoration (Read 138431 times)