[DieselDoctor]

Jon - you're right about overhauling a dry sleeve engine, there is a trick to it. Mack engines are dry sleeved and after going thru Mack training, it was drilled into us that fitting the liner properly was the key to engine longevity. If the liner is fit incorrectly, heat transfer is poor and hot spots develop on the cylinder walls, and catastrophic engine failure soon after. I've been into several DT466's but as you said, wet liners in that one. Still one hell of a good engine when installed in the right weight class of truck. I recently had opportunity to hang an injection pump on a D436 in a IH 986 that belongs to my wife's uncle. Pretty impressive tractor but prefer his 1586. That one's my favorite. He bought both new in 1978 and a IH 786 in 1980.