Hi Bob,

I've just been reading through your posts on RC Universe.

I checked my old crancase. The brass sleave within the crancase which the crankshaft runs in, has a hole.

The hole is located, if looking at the crankcase from the front, directly inline with the brass ball on the outside of the crankcase. Or at 3 O'clock, hole inline with the little hand.

It looks like on your crankcase, the brass sleave has rotated somehow ?

My old crankcase, you can blow through the nipple to the regulator and air flows freely into the crankcase.

Probably worth buying a new crankcase, dont try to fix the old one, as if it goes again, you may be back to square one. I understand this is more expence.

Regards,

Mike.