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19 March, 2018, 06:49:13 AM *
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Author Topic: B10*2283  (Read 6083 times)
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« Reply #75 on: 13 March, 2018, 06:56:08 AM »

In my opinion a new oil seal will not help.  I machined a groove in the bushing around the main shaft (it just slides on) as the shaft itself is drilled and will allow oil to the clutch release bearing (inside the shaft is a sort of 'oil pump' and a felt 'seal')
I also machined an extra oil seal in the nose of the alu housing you now removed
I blocked the shaft at the front with a screw and used a sealed support bearing.

All in all it is a weird design in my opinion...

There's pictures of this on a post about my B21.
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« Reply #76 on: 13 March, 2018, 09:29:08 AM »

Thank you Koen and Tim and to others who have written to me 'off-forum'. It's clear that I have stumbled (slipped!) on one of the more knotty technical problems with early Aurelias (as I'm told the later gearboxes are differently designed in this area), and while I am some way towards getting my head around the issues and work arounds, I'm not going to write this up until I've done some more work on it.

Meanwhile, here's a link to Koen's informative thread on the subject from about a year ago.

'37 Aprilia
'50 B10
'68 Flavia Vignale
'55 Giulietta Sprint
S1 Land Rover
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