Every 1000 Hours Of Operation - Yanmar 6LPA-STP2 Service Manual

Periodic Maintenance Procedures
12/05
Checking and Adjusting the Power Steering
Oil Pump Belt (6LPA-STZP2 Models)
NOTICE: NEVER allow oil on the belt(s). Oil on the
belt causes slipping and stretching. Replace the
belt if it is damaged. NEVER over-tighten the belt(s)
or engine damage will result.
Figure 4-15
(2)
(1)
Figure 4-15
1. Check the belt by pushing on the middle of the
belt (Figure 4-15, (3)) with your finger. With
proper tension, the belt should deflect
8 to 10 mm (approximately 3/8 in.)
(Figure 4-15, (4)).
2. Loosen the power steering pump bolt
(Figure 4-15, (2)) and move the oil pump
(Figure 4-15, (1)) to adjust the belt tension.
3. Replace the belt if required.
Power Steering Oil Pump Belt Part
Number (6LPA-STZP2 only)
119787–26540
6LPA Service Manual

Every 1000 Hours of Operation

Every 1000 Hours of Operation Perform the
following maintenance every 1000 hours or 4 years
of operation, whichever comes first.
• Checking the Fuel Injection Timing
• Checking the Fuel Injector Pressure and
Nozzle Spray Pattern
(3)
• Checking or Replacing the Seawater Pump
Impeller
(4)
• Adjusting Intake and Exhaust Valve
Clearances
• Lapping the Intake and Exhaust Valves
Checking the Fuel Injection Timing
0004913_s1
See Injection Timing Inspection and Adjustment on
page 5-93.
Checking the Fuel Injector Pressure and
Nozzle Spray Pattern
See Spray Test on page 6-15.
Checking or Replacing Seawater Pump
Impeller
NOTICE: When turning the engine by hand, be
sure to turn it in the correct direction. Turning it in
the opposite direction damages the blades of the
impeller.
Figure 4-16
1 – Impeller
2 – O-Ring
3 – Cover
4 – Cover Bolts
© 2007 Yanmar Marine International
PERIODIC MAINTENANCE
( 1 )
Figure 4-16
( 2 )
( 3 )
( 4 )
0004914
4-17