1961 CB72 Project

G-Man · Post by **G-Man** » Tue Nov 10, 2015 7:34 am

The needle-roller bearings turned up and apart from an extra oil-hole (which will get covered up anyway) they look good. They certainly feel better on the inner sleeve than the originals so these will become a standard fit for my 'refurb program'.

Just waiting for those M7 bolts now...

G

LOUD MOUSE · Post by **LOUD MOUSE** » Tue Nov 10, 2015 7:43 am

Do you have a supplier for the neoprene wheel?. ....................lm

G-Man wrote:The needle-roller bearings turned up and apart from an extra oil-hole (which will get covered up anyway) they look good. They certainly feel better on the inner sleeve than the originals so these will become a standard fit for my 'refurb program'.

Just waiting for those M7 bolts now...

G

G-Man · Post by **G-Man** » Tue Nov 10, 2015 8:02 am

LM

No - sorry, I am just re-truing old ones. I'm sure someone could be persuaded to make them if there was demand. The surface underneath the 'crust' is still quite pliable.

G

LOUD MOUSE wrote:Do you have a supplier for the neoprene wheel?. ....................lm

G-Man wrote:The needle-roller bearings turned up and apart from an extra oil-hole (which will get covered up anyway) they look good. They certainly feel better on the inner sleeve than the originals so these will become a standard fit for my 'refurb program'.

Just waiting for those M7 bolts now...

G

G-Man · Post by **G-Man** » Tue Nov 10, 2015 8:05 am

I tipped out my box of old tensioners and was a little surprised with how many there were.

And when they were in daylight - I could see that I had four early ones. The elusive one from the '61 engine is on the left.

That's the one most in need of attention.

G

LOUD MOUSE · Post by **LOUD MOUSE** » Tue Nov 10, 2015 8:38 am

As you are really getting into this part have you given any thought to using the wheel from
the primary chain tensioner?
I haven't taken one apart but you are into this and maybe you will find the wheel will interchange with a small amount of modes. ...........lm

G-Man wrote:LM

No - sorry, I am just re-truing old ones. I'm sure someone could be persuaded to make them if there was demand. The surface underneath the 'crust' is still quite pliable.

G

LOUD MOUSE wrote:Do you have a supplier for the neoprene wheel?. ....................lm

G-Man wrote:The needle-roller bearings turned up and apart from an extra oil-hole (which will get covered up anyway) they look good. They certainly feel better on the inner sleeve than the originals so these will become a standard fit for my 'refurb program'.

Just waiting for those M7 bolts now...

G

G-Man · Post by **G-Man** » Tue Nov 10, 2015 9:51 am

LM

Thank for your suggestion. As a complete coincidence, when I emptied this box of parts there were a few primary tensioner assemblies in there. You're right, it looks like the same basic wheel with just a thicker rib in the middle. I'll pull one apart and take a look.

When the M7 bolts turn up I'll get a complete tensioner built up and check it in a barrel for clearance. If that works out I'm just going to work through my whole 'collection'.

G

LOUD MOUSE wrote:As you are really getting into this part have you given any thought to using the wheel from
the primary chain tensioner?
I haven't taken one apart but you are into this and maybe you will find the wheel will interchange with a small amount of modes. ...........lm

G-Man wrote:LM

No - sorry, I am just re-truing old ones. I'm sure someone could be persuaded to make them if there was demand. The surface underneath the 'crust' is still quite pliable.

G

LOUD MOUSE wrote:Do you have a supplier for the neoprene wheel?. ....................lm

G-Man wrote:The needle-roller bearings turned up and apart from an extra oil-hole (which will get covered up anyway) they look good. They certainly feel better on the inner sleeve than the originals so these will become a standard fit for my 'refurb program'.

Just waiting for those M7 bolts now...

G

Seadog · Post by **Seadog** » Tue Nov 10, 2015 10:01 am

LOL, you do have one or two extras there, G. A couple of questions, if I may:

What's the difference between the old and new style? It appears that the old ones have the adjusting bolt on the left. Is that the only difference?

In an earlier post, you said that the tensioner wheel you were working on looked ropey. I assume that you mean that the wheel was scalloped. I see that some others in your stash have the same problem. What causes that? Is it from too much tension on the chain? Adjusting error?