Yanmar 6LPA-STP2 Service Manual page 161

Timing Gear
12/05
12. Remove the oil pump drive shaft gear from the
crankshaft using special tool P/N
119770-01080 (Figure 5-191, (1)).
Figure 5-191
(1)
Figure 5-191
13. Measure the thrust clearance of the idler gear
using a feeler gauge (Figure 5-192, (1)).
• Standard thrust clearance: 0.05 to 0.15 mm
(0.002 to 0.006 in.)
• Maximum thrust clearance: 0.30 mm
(0.011 in.)
If the measured thrust clearance exceeds the
maximum specification, replace the thrust plate.
Inspect the idler gear and idler gear shaft and
replace as necessary.
Figure 5-192
Figure 5-192
14. Remove the 2 bolts securing the idler gear and
thrust plate.
6LPA Service Manual
15. Using a suitable tool (Figure 5-193, (1)), turn
the fuel injection pump drive gear
(Figure 5-193, (2)). in both directions to loosen
and remove the idler gear (Figure 5-193, (3)).
16. Remove the idler gear shaft.
Figure 5-193
0005191
17. Using a suitable tool (Figure 5-194, (1)) hold
the fuel injection pump gear and loosen the
gear nut.
18. Remove the gear nut together with the O-ring.
Figure 5-194
(1)
(1)
0005192
© 2007 Yanmar Marine International
(3)
Figure 5-193
Figure 5-194
ENGINE
(1)
(2)
0005193
0005194
5-81