ENGINE
6LPA Service Manual
5-35
Cylinder Head
12/05
© 2007 Yanmar Marine International
8. Select an appropriate gasket from the following
charts, based on the piston protrusion
measurement.
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.
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.
Piston protrusion
(P)
Gasket size
Gasket P/N
0.225 mm
(0.009 in.) or less
Use gasket “1.”
119771-00401
0.226 to 0.325
mm (0.009 to
0.013 in.)
Use gasket “3.”
119771-00411
0.326 mm
(0.013 in.) or
more
Use gasket “5.”
119771-00421
(1)
000509
3
(1)
0005094