Freshwater Pump Removal - Yanmar 6LPA-STP2 Service Manual

Cooling System
12/05

Freshwater Pump Removal

1. Drain the engine cooling water.
2. Loosen the six bolts for viscous damper and the
four freshwater pump pulley nuts (Figure 7-2).
3. Loosen the alternator pivot bolt and adjustment
lock bolts and remove the two drive belts.
Figure 7-2
Figure 7-2
4. Remove the timing belt and idler pulley and
No. 1 camshaft timing pulley. See Timing Belt
Removal on page 5-69.
5. Remove the camshaft oil seal retainer. See step
11 starting in Cylinder Head Removal on
page 5-16.
6. Remove the three bolts and alternator adjusting
bar (Figure 7-3, (1)).
6LPA Service Manual
7. Remove the six bolts, two nuts, freshwater
pump and gasket (Figure 7-3).
Figure 7-3
( 1 )
0005330
8. Inspect the freshwater pump by turning the
pulley and checking that the freshwater pump
rotates smoothly and the bearing has no play
(Figure 7-4). Replace the freshwater pump as
needed.
Figure 7-4
© 2007 Yanmar Marine International
COOLING SYSTEM
0005331
Figure 7-3
0005332
Figure 7-4
7-5