Exposed gearbox extension

[jdaley]

I race sidecars, which have everything exposed. 

I am thinking about having the aluminum parts water blasted and left exposed where practical in my Herald.

For instance the gear extension could be upolstered so it stands free and engine noise etc is excluded,

Has it been down before?

Edited April 28 by jdaley

[Colin Lindsay]

23 minutes ago, jdaley said:

I race sidecars, which have everything exposed. 

I am thinking about having the aluminum parts water blasted and left exposed where practical in my Herald.

For instance the gear extension could be upolstered so it stands free and engine noise etc is excluded,

Has it been down before?

I've not seen it done (bar no tunnel at all, but the road noise was terrible!) but the world's your oyster with the Triumph design. Simple enough to do by modifying the tunnel and the carpet; it should be easy enough to alter the shape of the tunnel as required then fibreglass the new shape. I wonder would you get more noise coming up around the front end of the lever extension, presumably that's now exposed and will have to be sealed around, than the rear lever itself which has the rubber seal round it? 

[Graham C]

Also more gaps for engine fumes and heat to enter the car.

Graham

[Unkel Kunkel]

An interesting project.

Altering the  fibre type tunnel shape could  be done by cutting and forming new shape pattern with cardboard and then  using fibre glass.

Sealing where the extension emerges would need some thought - it would require some sort of  large gaiter arrangement  otherwise the noise could be a really very intrusive .

It would make the job of replacing the gear lever bushes more accessible …

 

 

 

[jdaley]

Currently I have no tunnel.

In Australia we have a product called 'dektite', its a gaiter for pipes through a roof, they may be perfect as the gaiter.