Yanmar 4LHA-STP User Manual

Chapter 2 Basic Engine
4. Cylinder Head
4. Cylinder Head
The cylinder head has a 4-cylinder integral construction.
The area between the intake port and exhaust port is cooled
by a water jet.
• 4LHA Seriei
Valve rocker arm shaft
Hot water outlet port
Plug for outlet port
I.D. mark D
Appiicabie engine
4LHA-DTE
Exhaust valve
Intake valve '
2-14

Yanmar 4LHA-STP Specifications

General

Number of Cylinders	4
Fuel System	Direct Injection
Engine Type	4-Stroke Vertical Water-Cooled Diesel Engine
Displacement	3.455 L
Bore x Stroke	100 mm x 110 mm
Aspiration	Turbocharged