This is a Mitsubishi 4G52 forklift cylinder head we performed a valve job & surface to. The 4G52 is notorious for developing cracks so we had to do some crack repair to this industrial aluminum cylinder head as well. After we got the crack fixed & repaired we pressure tested the head to make sure it doesn’t have any leaks. We initially cleaned the head in our hot tank vat before we sandblasted it inside & out. We ground the valves on our Sioux valve grinder and machined & cut the seats on our Tobin-Arp seat-and-guide machine. We then surface & milled the deck flat on our AMC surface milling machine. After we got the head all assembled we vacuum tested it to ensure the valves are all seating on their respective valve seats. It’s all cleaned up, repaired, machined, & ready for another round.

Motor Mission Machine & Radiator
5435 Desert Point Dr.
Las Vegas, Nv. 89118
Phone: (702) 649-2366 or (702) 649-0648
Fax: (702) 649-4133
www.MotorMission.com
Facebook.com/MotorMission