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ENGINE DISASSEMBLY
POWER UNIT
Cam shaft, oil pump and related parts
NO.
Part name
1
Cam shaft
2
Timing belt
3
Drive pulley
4
Driven pulley
5
Oil pump
HEAT EXCHANGER
ASSEMBLY
Check pOint:etc.
• Smooth movement of decompressor weight
Note: This part is very wfi)akagainst impact.
Note: Be sure to keep clean free from oil and grease
Note: Be sure to keep clean free from oil and grease
Note: Pay attention of direction
("UP' mark faces the magneto side)
Note: Be sure to keep clean free from oil and grease
Note: Pay attention of direction
("UP" mark faces the magneto side)
MD>
4 .. troke engine 011
2. Timing beft
-~_.:r
26mmNut
...I....
/34-36N
m/~
ZINC ANODE
Lock washer
~
PJate--@
Mar~
3. Driven pulley
~
Mark
4.
Driven pulley
Plate-®
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1. Cam chaft
HEAT EXCHANGER
(FRESH WATER COOLED MODELS)
I
The heat exchanger should be removed, inspected, and
cleaned. Install a new zinc and fresh hoses with new clamps
at reassembly.
If
suspect, a local automotive radiator shop
should be able to clean and pressure test the heat exchanger.
The water injected exhaust elbow should be removed and
inspected for defects and corrosion. Also inspect the siphon
break hose and its connections.
Flush out the coolant recovery tank and its connecting hose.
Loosen the raw water pump, remove the drive belt and then
remove the raw water pump.
Remove the engines coolant pump. For servicing, refer to
COOLANT PUMP.
Remove the thermostat assembly and clean the interior
chambers. Inspect the seals in the pressure cap when
reassembling. Replace the thermostat and gasket.
Engines & Generators
19
Decompressor
weight
----tI.o
5. Oil pump
J
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