rocket science .... LMAO <img src="/forums/images/graemlins/lol.gif" alt="" />

Yes it does purge the overflow bottle when cold <img src="/forums/images/graemlins/barf.gif" alt="" />

Just got back from the auto parts with my new thermostat, gasket and rad cap .... after dinner I'll install and test.

I'm thinking the blocked radiator thing is the correct answer ...... I'll let Y'all know !

Thanks for the replies <img src="/forums/images/graemlins/cheers.gif" alt="" />