Appending to my previous post.<br /><br />Have tore down part of the engine since last post, here is additional info.<br /><br />Water in intake manifold ports for all 6 cylinders.<br />Rust on several of the rocker arms.<br />Rust on all 6 intake and exaust valves.<br />Much pitting on cylinder 2 through 5, 5 having the worst pitting.<br /><br />Could a cracked manifold (since intake and exaust are on the same cast iron set) cause water used to cool down exaust seep into the intake ports and then ??? down though past the rings into the crankcase?<br /><br />Thanks for your help
