2.0 cu bearing problem

[peabasher]

Hi all
Im in the middle of re-building my 2.0 cu Aircooled after finally getting the main bearings but when i put the cases together and apply a little torque the crank locks up.The case has been align bored at some stage to 0.50 and the crank to 0.25.There is a new cam as well ... could it be that ??

[bigherb]

It is often caused by one of the bearing dowel pins bottoming out in the bearing hole.

[jimpainter]

Make sure the dowels are located correctly because if not you will damage the case/bearings. Are you sure you have the right size bearings? Oiled them up before fitting.

Jim

[sarran1955]

Hello,

This may help..

https://www.youtube.com/watch?v=qxykQb957xU" onclick="window.open(this.href);return false;

Cordialement,

[peabasher]

Thanks all for the responces.The you tube clip is pretty much what i have done so will check the dowel pins.The bearings are the same as what has come out so couldnt get my head round it. I will let you know how i get on but work nights so not getting the sleep due to the bloody heat and so had lost the will to live when i had finally got up.......thanks again