Four Stroke Cylinder Heads
At INJEGOV, we specialize in four-stroke cylinder overhauling and reconditioning, servicing hundreds of cylinder heads yearly. Our facilities are equipped with advanced cleaning, inspection, and grinding machines to ensure the highest standards in cylinder cover overhauling and reconditioning.
Standard overhauling of cylinder heads includes the following works:
- Chemical cleaning, dye check, and calibration
- Renewal of all seats, valve guides, and injector bush
- Grinding of all seats
- Grinding of cover in the way of the liner landing surface
- Coating and pressure testing
In case seat pockets are found corroded, we have two repair options:
a. Machining to an oversize diameter
b. Recondition by laser cladding using anticorrosive alloys and machine to standard dimensions. Covers are heated during the process, and a full metallurgical bond with parent material is achieved.
Laser cladding of seat pockets brings the back to standard diameter while using special alloys it improves the wear resistance of the covers.
Four-stroke cylinder head reconditioning
Diesel engine cylinder head seat grinding with Chris Marine in-situ grinding machine
Large bore cylinder head surface grinding
Four-stroke cylinder heads complete with valves ready for delivery
MAK M43 cylinder head seat housing boring to oversized dimension
Pielstick cylinder covers ready for delivery
MAN B&W 28/32H four-stroke cylinder heads quored and ready for delivery
Cylinder head and piston units ready for delivery
Advantages of reconditioning piston crowns at Injegov:
Cost-effective
A long proven solution delivering a good as new part at a fraction of the cost of the new part.
Swift
By reconditioning owner’s spare parts we achieve shorter turnaround times.
Accurate
We provide detailed reporting for reconditioned parts conforming to the strictest quality standards.
Sustainable
By using service exchange components, you exploit a well-tested and effective way to reduce maintenance downtime.
On-exchange
A long proven solution delivering a good as new part at a fraction of the cost of the new part