I purchased an Oliver 1800 C (1964) tractor last fall 2010 for $4800. Winter set in and I have just now been able to get started on some restoration. The engine starts fine, the hours show 1398, looks original but no guarantee. Tractor is clean and mostly repainted, tires 90%. The 310 sounds fine, no knocks, smokes some but it is almost 50 years old. Pulled the injectors this week, two were fouled with carbon. My local diesel shop is testing and rebuilding them. Hope it helps with the smoke. Has anyone done a wet engine kit rebuild on the 310 Waukesha. I see engine kits are available on several sites. Thank you!