Engine Assembly - Polaris msx 110 Service Manual

ENGINE DISASSEMBLY / ASSEMBLY

Engine Assembly

1. Remove any remaining gasket material from the upper
and lower crankcase mating surfaces.
2. Remove gasket material from bedplate mating surface.
3. Clean the following parts with engine cleaning solvent:
Upper / Lower Crankcase
S
Cylinder Head
S
Bedplate
S
Lower Sump
S
Crankshaft / Balance Shaft
S
4. After cleaning parts, blow dry with compressed air.
5. With the engine facing up on stand, lubricate cylinders
with engine oil.
6. Obtain both piston assemblies.
assemblies with engine oil.
7. Install the upper and oil control rings with the markings
facing upwards.
8. Place ring compressor tool, PN--PW--46983 on top of
one cylinder. Align the ring end gaps as outlined in the
photo. The piston mark will face the INTAKE SIDE of
the engine once installed into the cylinder.
2004 Four Stroke PWC Service Manual
Lubricate piston
PISTON MARK
GAP
UPPER RINGS
OIL CONTROL RING
SPRING
GAP
GAP
4.43