I have just replaced the head on 90 = Vanagon with a 2.1L engine.  I have a leaky cylinder head nut.  I have tried = 3 different sealants and nothing stops the coolant from leaking past the nut.  I can not see a visable crack, but the coolant just flows as = if the nut were not there. 
 
Has anyone else had a similar = experience, or suggestion to make?  I hate to have to remove the head = again.
 
Walter E. Stephens
ACS - = AeroCrafters Supply
POB 455
Langley, WA  98260
(360) 221-5039
www.acs-aerocrafters.com