Oil Leak

Good evening
I have a RS 1973 since many years , last winter due to an oil leakage through the selector shaft , i have opened completely the engine and replaced the O rings n°105 and 76 and the engine is still leaking oil , is anybody in this forum got a solution please , do i have to replace the left  crankcase
Thank you for your advice  
Roland

Hi Roland,

The numbers of your O-rings do not make any sence to me.
Please use the designated Kreidler part numbers to avoid confusion.

If I am not mistaking, you're talking about 00.01.67...
Recommende is to also check if the bronze cup (15.51.03) hasn't been worn out.

Do bear in mind that I'm guessing here, and not an engine expert

Hi kaZeta
Thank you for your reply , in fact last winter i did open completely the engine , and change all the seals, bearings , and so on , but not the bronze bush 15.51.03 , and i am sure that the leak is coming from there
But next week i go with a 50 cc french club , to do the Corsica Tour , and i will go with an oil can to refill every day , luckily the oil leak is not so important
Another problem , no rear light , and no power on the grey cable , i will check to morrow
We keep in touch , thank you
All the best
Roland

The grey cable should be connected in the headlight (or the ignition key lock) to the yellow cable.

Regards, Tom