Yanmar 6LPA-STP2 Service Manual page 115

Cylinder Head
12/05
8. Select an appropriate gasket from the following
charts, based on the piston protrusion
measurement.
Piston protrusion Gasket size
(P)
0.225 mm Use gasket "1."
(0.009 in.) or less
0.226 to 0.325 Use gasket "3."
mm (0.009 to
0.013 in.)
0.326 mm Use gasket "5."
(0.013 in.) or
more
9. Set the No. 1 cylinder to BDC by turning the
crankshaft pulley to align to the timing mark of
No. 2 camshaft timing pulley, using the bottom
dead center (BDC) mark of the timing gear
cover (Figure 5-65, (1)).
Figure 5-65
Figure 5-65
10. Install a new cylinder head gasket in position on
the cylinder block (Figure 5-66).
Note: Install the gasket in the correct position.
6LPA Service Manual
Gasket P/N
119771-00401
119771-00411
119771-00421
(1)
0005093
© 2007 Yanmar Marine International
Figure 5-66
Figure 5-66
1 – Gasket Mark Number
11. Install the cylinder head correctly on the
cylinder head gasket.
12. Lightly apply engine oil to the threads and
cylinder head bolt seats and install the cylinder
head bolts.
Note: Uniformly tighten the cylinder head bolts
in 3 steps. If any bolts are damaged or
deformed, replace with new bolts.
ENGINE
(1)
0005094
5-35