The air intake and exhaust valve set and spindles found in cylinder heads of 4-stroke engines, as well as the exhaust valve spindle & seat in 2-stroke engine cylinder covers, needs regular maintenance. We can assist with training and actual machining of these parts either on-site or in our facilities.

Job Examples

On-site maintenance done with

  • Valve spindle overhaul using Chris-Marine Portable Valve Grinder (PVG / 75H)
  • Valve seat overhaul using Chris-Marine Portable Valve Seat Lathe (VSL)
  • Machining of recess in cylinder head using our Valve Recess Lathe (VRL)