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4 speed Gear box info

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4 speed Gear box info

Post  Simon on Sun Aug 13, 2017 10:15 pm

I have a 4 speed box fitted to an 8e engine with serial numbers s raw 5-23 any info on this box will be welcome, also how much play should there be on primary chain.
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Villiers primary chain adjustment

Post  FB vincent on Sat Sep 23, 2017 8:15 am

I am sure there are many folk out there with far more experience than me on this subject, but here is one quote available online, although on the subject of engine tuning: 'Primary chains are another problem area in that they are prone to stretch, requiring frequent strips to reshim the gearbox to maintain chain tension. A minimum of one and a maximum of four gaskets being used to achieve 1/4" up and down movement of the chain.'


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Post  kerabo on Sat Sep 23, 2017 8:25 am

I have just rebuilt my 8E but with a 3 speed box. I used metal shim to get the correct gap and just cut it out and used instant gasket. It's supprising how little you need to make a lot of difference. I set mine at 1/4"
Remember to have a new chain and good sprockets as if you shim with old parts you won't be able to fit new without reshiming.

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Gearbox i.d.

Post  piston 197 on Sat Sep 23, 2017 1:26 pm

There were 3 prefixes for the 4 speed Albion box on the 8E, denoted by the first large letter.
S std ratio fitted to road and scrambles ( yours)
V wide ratio trials
R reverse 3 forward and 1 backwards gear

you have a STD road/scrambles box

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Re: 4 speed Gear box info

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