Westerbeke 3.0KW BPMG-60HZ Service Manual page 24

ENGINE DISASSEMBLY
POWER UNIT
Crank shaft, pistons, cylinder/crank case and related parts
NO. Part name
1
Crankshaft
2 Connecting rod
3 Connecting rod cap
4 Connecting rod bolt
5 Piston
6 Piston pin clip
~
Loctite "518"
fi2iiiIDi
4-stroke Engine Oil
Metal bearing
1.
3. Connecting rod cap
Crankcase
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Check point, etc.
• Oil clearance at main bearings
• Oil clearance at big end of connecting rod
Note: Align the tab of the metal bearing with the notch in the
cylinder/crank case
Note: There are two type of metal bearings
(Thickness code: Black color and Brown color)
Note: Pay attention to the connecting rod orientation for
reassembling
("UP" mark must face the magneto side)
Note: Mate the markings of the cap and connecting rod with
each other ("UP" mark must face the magneto side)
Note: Tighten the bolts in ·careful manner;
Gradually tighten the two bolts alternately several times
so thatthey are evenly tightened.
Note: Pay attention to the piston direction
("UP" mark faces the magneto side)
Note:
Don~
use the clip that is once removed.
Be sure to use a new part for reassembling.
CYlinder
4. Connecting rod bolt
111-13N
ml
ml
H630-6
/8-10 N -
ml
Oil strainer
Engines & Generators
17