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[jawa-enfield]

Thanks, sometimes i think it's me.. mysterious gearboxes won't fit together anymore, bending brake plate pivots.. dunno..

[jawa-enfield]

I took everything apart, removed the ball bearings and inserted them again, same problem.. don't know what to do anymore, cannot find the cause.

Suggestions are welcome..

[Chris [Stockport]]

Sorry I don't know the answer, but (i) have you looked for similar on Youtube? and (ii) Can you put any other pictures on here?
Good luck, Chris

[jawa-enfield]

Toutube has several assembly movies, The gearbox itself is not difficult, i also- in my defence- assembled BSA, jawa, ural, dnepr and ducati gearboxes.

Pics from what partys do you want?
I do not know where the problem is, the mainshaft is the same as was installed, seems to have stretched in some way?

Only difference is;
- new ball bearings
-close ratio sprocket, which has the same dimensions as the old one (calliper says so)

[vince]

Assemble the box without gears just the mainshaft and see if it fits. Vince

[jawa-enfield]

I did that, (as i mentioned?)
2 days ago i brought it to a workshop and they discovered 2 things;
Despite same bearing number, the big bearing has larger dimensions,(do not know about the smaller opne, but both are the same brand)
Also the (new) layshaft is bend, 'biting'in de bronze bush when assembled..

These was no big force needed to press the bearing bush and the sprocket (freezer/oven trick) onto the shaft, so i cannot imagine this is the cause for bending.

[jawa-enfield]

Update; Our host is sending a new layshaft which is not bend. The one i have now sways over 1,30 mm.

I hope sharing this will shorten the quest for people who encounter the same problem.

[vince]

Hi, I thought you said the problem was a bearing with incorrect width? Vince

[jawa-enfield]

Yes, that does noty help, but .2mm should fall whithin the tolerances? I don't know if the problem is solved now, i will bring out report when i have the new spindle

[Meteorstorm]

You said the problem was still there when you assembled the GB without the layshaft,and yet they are sending you a new layshaft.Bit confused,can you explain pls.