wsm B2420 - Injection Nozzle

ENGINE
B2420, WSM
1-S39
Water Pump Assembly
1. Loosen the alternator mounting bolts, and remove the fan belt.
2. Remove the fan and fan pulley.
3. Remove the water Pump assembly from the gear case cover.
4. Remove the water pump flange (1).
5. Press out the water pump shaft (2) with the impeller (5) on it.
6. Remove the impeller from the water pump shaft.
7. Remove the mechanical seal (4).
(When reassembling)
• Apply a liquid gasket (Three Bond 1215 or equivalent) to the
both sides of gasket.
• Replace the mechanical seal with new one.
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(6) Injection Nozzle
Nozzle Holder
1. Secure the nozzle retaining nut (7) with a vise.
2. Remove the nozzle holder (1), and take out parts inside.
(When reassembling)
• Assemble the nozzle in clean fuel oil.
• Install the push rod (4), noting its direction.
• After assembling the nozzle, be sure to adjust the fuel injection
pressure.
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(1) Water Pump Flange
(2) Water Pump Shaft
(3) Water Pump Body
(4) Mechanical Seal
(5) Impeller
Tightening torque
Nozzle holder
35 to 39 N·m
3.5 to 4.0 kgf·m
26 to 28 lbf·ft
Overflow pipe nut
20 to 24 N·m
2.0 to 2.5 kgf·m
15 to 18 lbf·ft
Nozzle holder assembly
49 to 68 N·m
5.0 to 7.0 kgf·m
37 to 50 lbf·ft
(1) Nozzle Holder
(2) Adjusting Washer
(3) Nozzle Spring
(4) Push Rod
(5) Distance Piece
(6) Nozzle Piece
(7) Nozzle Retaining Nut
KiSC issued 06, 2012 A