Impeller can slip on the shaft On 15 June 2011 23:49, John Gardner wrote: > Pressure test the cooling system. If it does'nt hold rated > pressure it'll overheat. > > Sniff the exhaust with a gas analyzer - Someone who knows > what he's looking at can tell if the head gasket(s) leaks. > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .