Yanmar 6LY3 series - Oil Pump Components and Functions; Oil Pump Specifications

LUBRICATION
Oil Pump Components and Functions
12/05
6LY3 Service Manual
8-5
© 2007 Yanmar Marine International
OIL PUMP COMPONENTS AND
FUNCTIONS
The gear-type oil pump is installed on the cylinder
block (Figure 8-2, (1)). The pump is driven by the
crankshaft gear through the idler gear
(Figure 8-2, (2)). An oil pressure regulating valve
(Figure 8-2, (6)) is located on the cylinder block
behind the oil cooler.
Figure 8-2
Figure 8-2
1 – Cylinder Block
2 – Idler Gear
3–Shims
4 – Oil Pump
5 – Intake Filter
6 – Oil Pressure Regulating Valve
Oil Pump Specifications
0006222
(1)
(6)
(5)
(2)
(4)
(3)
Pump Test Performance
Theoretical Delivery 32.8 cc (1.1 oz) per
revolution
Delivery 94.5 L (25 gal) or more
Delivery Pressure
(Safety Valve)
0.8 MPa (116 psi)
Pump Speed 3200 rpm
Engine Speed 3200 rpm
Specification of Drive Gear
Module 2.5
Angle of Pressure 20°
Number of Teeth 24
Standard Pitch Diameter 66.203 mm (2.606 in.)