LUBRICATION
Specifications
8-4 BY Service Manual
© 2009 Yanmar Marine International
SPECIFICATIONS
Test and Adjustment Specifications
Note: All pressure specifications are with engine at normal operating temperature.
Special Torque Chart
Test Item Model Test RPM Specification
Oil Pressure 4BY2 Idle 0.8 bar (12 psi)
4000 rpm 3.8 to 6.0 bar (55 to 87 psi)
6BY2 Idle 0.7 bar (10 psi)
4000 rpm 3.8 to 6.0 bar (55 to 87 psi)
Component Tightening Torque
Lubricating Oil
Application
Reference Page
Oil Filter Cap 25 N·m (221 in.-lb) Not Applied Change Engine Oil and
Replace Engine Oil
Filter Element on
page 8-9
Oil Sump Bolt 20 N·m (177 in.-lb) Not Applied Remove and Install Oil
Sump on page 8-11
Oil Sump Drain Plug 25 N·m (221 in.-lb) Not Applied
Oil Pickup Bolts 10 N·m (89 in.-lb) Not Applied Install Oil Pump on
page 8-12
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