ENGINE
BX1870,BX2370,BX2670,LA203A,LA243A,RCK48(P),RCK54(P),RCK60B,RCK60D,RCK54D, WSM
1-S29
(2) Removing Outer Parts
Draining Coolant, Radiator, Air Cleaner and Muffler etc.
• Never open the radiator cap while operating or immediately
after stopping. Otherwise, hot water will spout out from the
radiator. Wait for more than ten minutes to cool the
radiator, before opening the cap.
1. Set the engine stands (9) to the crankcase.
2. Open the radiator drain plug, and remove radiator cap to
completely drain the coolant.
3. After all coolant is drained, close the drain plug.
4. Loosen the inlet hose band and the radiator hose bands, and
remove the radiator (1) with the radiator hoses (2) and the air
cleaner (3).
5. Loosen the fan belt. Remove the alternator (6), the starter motor
(8), the fan and the fan belt.
6. Remove the heat proof cover (7), the muffler (5) and the
exhaust manifold.
9Y1210855ENS0028US0
(3) Cylinder Head and Valves
Cylinder Head Cover
1. Disconnect the breather hose.
2. Remove the cylinder head cover nuts.
3. Remove the cylinder head cover (1).
(When reassembling)
• Check to see if the cylinder head cover gasket is not damaged.
[BX1870D (D722-E4) and BX2370D (D902-E4)]
[BX2670D (D1005-E4)]
9Y1210855ENS0029US0
Coolant with
recovery tank
Capacity
BX1870D
(D722-E4)
2.5 L
2.6 U.S.qts
2.2 Imp.qts
BX2370D
(D902-E4)
2.7 L
2.8 U.S.qts
2.4 Imp.qts
BX2670D
(D1005-E4)
3.3 L
3.5 U.S.qts
2.9 Imp.qts
(1) Radiator
(2) Radiator Hose
(3) Air Cleaner
(4) Inlet Hose
(5) Muffler
(6) Alternator
(7) Heat Proof Cover
(8) Starter Motor
(9) Engine Stand
Tightening torque Cylinder head cover screw
9.81 to 11.2 N·m
1.00 to 1.15 kgf·m
7.24 to 8.31 lbf·ft
Tightening torque Cylinder head cover screw
7 to 8 N·m
0.7 to 0.9 kgf·m
5 to 6 lbf·ft
(1) Cylinder Head Cover
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