1961 CB72 Project

G-Man · Post by **G-Man** » Sun Apr 26, 2015 2:29 pm

Hi LM

Not sure about that. It was just the one in my '63 'donor' engine. It was certainly different from the '61 clutch basket, which was held together with copper rivets straight into the sprocket. The clutch basket I used had steel rivets and a plate outside the sprocket which, I assume, is to sandwich the rubbers in the sprocket.

G

LOUD MOUSE wrote:What CUSH drive basket G?. ...........lm

sarals · Post by **sarals** » Sun Apr 26, 2015 3:19 pm

Graham, I'm hoping to get the handling issues sorted on the Old Girl, and the way it's going with you, I think we'll be able to share spring riding stories!

And I don't mean on the bicycles. :)

G-Man · Post by **G-Man** » Sun Apr 26, 2015 3:43 pm

Sara

I just wish I had a good excuse for coming to California..... My CB77 could be running this year, too. I'll be in Atlanta next week and another trip to the Barber Museum is in the offing.

Had a quick business meeting in Paris on Friday and the folks enjoying their bikes in the spring sunshine made me quite envious.

G

sarals wrote:Graham, I'm hoping to get the handling issues sorted on the Old Girl, and the way it's going with you, I think we'll be able to share spring riding stories!

And I don't mean on the bicycles. :)

Steverino · Post by **Steverino** » Sun Apr 26, 2015 4:46 pm

Thanks G Man
I didnt know you could order bearings and seals by specifications directly from a bearing or seal supplier. I've been relying on what a middleman in Thailand thinks might fit. I've only been working on the old Hondas for a couple years and there's a lot I don't know yet. I think this is 5th one Ive gone through that has had that seal torn up. Do you set the new one with a socket and mallet?
Steve

G-Man · Post by **G-Man** » Sun Apr 26, 2015 5:13 pm

Steve

Glad to be of help! The only one that I cannot get from a bearing supplier is the one on the clutch lifter. David Silver still has those. The Honda manuals are helpful in that they quote the sizes. Even if you haven't got that you can measure the seal or housing and most of the seals have the dimensions written on them. There will be plenty of stockists online and local to you. The people I linked to manage a 24 hr service for free.....

I think it is just the splines (and the fact that they get damaged) that cauese the seal damage. Yes a socket and mallet are a good plan but some masking tape on the spline and some grease should help when putting on the cover.

There's a lot we all don't know. Realising that is the first step....... :-)

I first started working on Hondas (a C110) when I was fourteen and that's a long time ago.

G

Steverino wrote:Thanks G Man
I didnt know you could order bearings and seals by specifications directly from a bearing or seal supplier. I've been relying on what a middleman in Thailand thinks might fit. I've only been working on the old Hondas for a couple years and there's a lot I don't know yet. I think this is 5th one Ive gone through that has had that seal torn up. Do you set the new one with a socket and mallet?
Steve

G-Man · Post by **G-Man** » Mon Apr 27, 2015 3:09 am

When I got back from my last trip, this lovely box of treasure was waiting for me, all the way from Australia.

The bearings are the left crank bearing which is pretty much unobtainable now. It superseded to a lawmower part number and this is from a CJ360T with the same dimensions. I got another from CMS (their last one..) so I am OK for my next few crank rebuilds.... :-)

Also in the box was a new 'sealed in bag' early tail light lens and a selection of gears for the CYB 5-speed gearbox. There is also a special race-kit primary chain which needs different crank and clutch sprockets. I don't think that my CYB project will ever get a full Honda 5-speed gearbox but you never know what will turn up.....

G

LOUD MOUSE · Post by **LOUD MOUSE** » Mon Apr 27, 2015 9:21 am

Question was answered and I hadn't seen it. .........lm