go back to my post #12 and weld away son

Quote:Agreed, I meant to say that it is silly to take it to a shop [when it can easily be done at home]. I have no power tools and do all my own Datsun maintenance. I have not taken my Datsun to a shop since the 1980s.

Here's a trick used with British motors and motors notorious for getting stuck on head studs. Yeah head studs but I imagine the same principle can work. Put motor back together but leave the head bolts slightly loose. Run engine till head moves or gasket blowout. If that hasn't shocked the bolt free of any binding rust then fell free to do the other stuff

Thanks Guys.Does this happen often on a series engines?
Could that happen if its been now opening for the first time since made??

Heres a tip from an old mechanic. As I have had to deal with many rounded head bolts over the years I have found this to work a treat. For obvious reasons, a single hex socket is best. Put some corse valve lapping paste on the head of the bolt before attempting to loosen it. The valve lapping paste will help it bite really hard into the bolt. It washes off. You don't want any of that stuff inside your engine though.

Thanks to everone that helped me out with there suggestions.
THE CYLINDER HEAD IS OFF.

Picked it up at the machine shop with the 1200,the guys were all amused about the lil Datsun.

Here's a pic of it in the trunk.

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