Maney Belt Drive

Chris · Apr 22, 2012

Hi

Posted this before.
On my Seeley Mk4 I had problems with Steves outrigger. I have alloy engine plates & the thickness is important.
You may need to relieve them so that the bearing does not come up upon the cir-clip & shouldered washer that holds the clutch. These appeared to clear on assembly but the circlip failed quickly. Spoke to Steve who immediately asked me how thick the engine plates are.
I will probably relieve the back of the outrigger rather than the plates.

Someone in OZ does a outrigger that is fore & aft so to speak ie where the shaft flexes. Seems a more logical approach.

Chris

Hobot · Apr 22, 2012

Yes Ms Peel alloy cradle is 5/16" thick so had to relieve the out rigger mounts some and even the top bolt nuts to get threads enough on both sides for washers with the SS dual adjuster upgrade. What would be even better would be crank end support by primary cover/case too.

swooshdave · Apr 22, 2012

Chris said:
Hi

Someone in OZ does a outrigger that is fore & aft so to speak ie where the shaft flexes. Seems a more logical approach.

Chris

That seems like a great solution. Mount the front to the center bolt. But I don't know where you would mount the back of the outrigger.

Holmeslice · Apr 22, 2012

swooshdave said:
Chris said:

Hi

Someone in OZ does a outrigger that is fore & aft so to speak ie where the shaft flexes. Seems a more logical approach.

Chris

Click to expand...

That seems like a great solution. Mount the front to the center bolt. But I don't know where you would mount the back of the outrigger.

So, when you mount the outrigger to bolts other than the gearbox mounting bolts, how to adjust your primary chain/belt tension?

Hobot · Apr 22, 2012

A non issue for belt drives but bad juju for chain gang.

swooshdave · Apr 22, 2012

Holmeslice said:
swooshdave said:

Chris said:

Hi

Someone in OZ does a outrigger that is fore & aft so to speak ie where the shaft flexes. Seems a more logical approach.

Chris

Click to expand...

That seems like a great solution. Mount the front to the center bolt. But I don't know where you would mount the back of the outrigger.

Click to expand...

So, when you mount the outrigger to bolts other than the gearbox mounting bolts, how to adjust your primary chain/belt tension?

I'm a designer, not an engineer! :mrgreen:

pete.v · Apr 23, 2012

swooshdave said:
I'm a designer, not an engineer! :mrgreen:

I will refrain. I will be a good boy. I will resist. I am not an antagonist. I ....I.....I....... ey yey yey!

B+Bogus · Apr 23, 2012

Oh, alright then... I am an Engineer. :roll:

There, I've said it. Now that's out in the open I'd like to add my ha'pennyworth.

The pre-MkIII Norton gearbox can be moved fore and aft by a

'slotted hole'

in the cradle. Similar

'slotted holes'

could be arranged in the inner primary cover to allow the newly 'Designed' and/or 'Engineered' bearing carrier to follow the same path.

Unfortunately, I saw a photo of Homeslice drilling a non-slotted hole in a Seeley engine plate :wink: , which proves it won't be necesary on anything with a belt-drive.

Just drill, tap (or fit backing flange) and job done.

Now I've written it down I may have to have a go at making one... but would it work?

Onder · Apr 23, 2012

Those three pictures were vital in illuminating the solution!

bwolfie · Apr 23, 2012

What nomenclature was given to this preparation, perhaps "H"?

CanukNortonNut · Apr 30, 2012

Right. Now you've done it.
Look what an Unladen Swallow just dropped off at the airport from the temperate zone.
Get On With It! :mrgreen:

cheers.
CNN

Hobot · Apr 30, 2012

Nice delivery CNN, do ya have a dual gearbox adjuster on hand too?
Start shopping for rear tire bargains too.

Maney Belt Drive

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