Gear bush 040047

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Egholt

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Oct 30, 2014
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I have ordered gear bushes for my gearbox , Norton Mrk. 2A from Andover .
But gear bush for layshaft 3rd gear , part no. 040047 seems to be special ?
Is there any information for this bush ?

Anything I should know when fitting new bushes to the gears ?
All my bushes have loose fittings in the gear .
Is it adviceable to fit 3 bushes in the main shaft output gear , instead for 2 bushes ?

Michael from Denmark
 
Egholt said:
I have ordered gear bushes for my gearbox , Norton Mrk. 2A from Andover .
But gear bush for layshaft 3rd gear , part no. 040047 seems to be special ?
Is there any information for this bush ?
Click to expand...

3rd gear bush 040047 is the same for all Commandos as far as I'm aware and it's the only 3rd gear bush number listed in the parts books.
Can we know the reason why you think there's a difference?
 
Egholt said:
All my bushes have loose fittings in the gear .
Is it adviceable to fit 3 bushes in the main shaft output gear , instead for 2 bushes ?

Michael from Denmark
Click to expand...

The sleeve gear an bush inside the kickstart shaft are a press fit. The bushes inside the gears should be a free running fit between shaft an gear.

Most recommend the two long bushes inthe sleeve gear as it leaves a small void in between the bushes that holds a little oil to help with lubricating the bushes.
 
toppy said:
The sleeve gear an bush inside the kickstart shaft are a press fit. The bushes inside the gears should be a free running fit between shaft an gear.
Click to expand...

Layshaft 1st gear bush is a press fit.
 
All bushes in the gears is a press fit , right ?
Andover list no Price for the bush 040047 , and advice to call for info .
I have send AN a PM for further info .

Michael
 
Egholt said:
All bushes in the gears is a press fit , right ?
Click to expand...

No, the only press fit gear bushes are layshaft 1st. and the sleeve gear.

Egholt said:
Andover list no Price for the bush 040047 , and advice to call for info .
I have send AN a PM for further info .
Click to expand...

Possibly they were/are temporarily out of stock?
 
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