wsm STW37 Workshop Manual page 127

STW34, STW37, STW40, WSM
Nozzle Holder Assembly and Glow Plug
1. Remove the overflow pipe assembly (3).
2. Remove the nozzle holder assemblies (4) using a 21 mm deep
socket wrench.
3. Remove the copper gasket and heat seal (5).
4. Remove the glow plugs (2).
(When reassembling)
• Replace the copper gasket and heat seal with new one.
Nozzle holder assembly
Overflow pipe assembly
Tightening torque
retaining nut
Glow plug
(1) Lead
(2) Glow Plug
(3) Overflow Pipe Assembly
Nozzle Heat Seal Service Removal Procedure
IMPORTANT
• Use a plus (phillips head) screw driver (1) that has a
diameter which is bigger than the heat seal hole (Approx.
6 mm (1/4 in.)).
1. Drove screw driver (1) lightly into the heat seal hole.
2. Turn screw driver three or four times each way.
3. While turning the screw driver, slowly pull the heat seal (4) out
together with the copper gasket (3).
4. If the heat seal drops, repeat the above procedure.
(When reassembling)
• Heat seal and copper gasket must be changed when the
injection nozzle is removed for cleaning or for service.
(1) Plus Screw Driver
(2) Nozzle Holder
Rocker Arm and Push Rod
1. Remove the rocker arm bracket mounting bolts.
2. Remove the rocker arm assembly (1).
3. Remove the push rods (2).
(When reassembling)
• When putting the push rods (2) onto the tappets (3), check to
see if their ends are properly engaged with the grooves.
IMPORTANT
• After installing the rocker arm, be sure to adjust the valve
clearance.
Tightening torque Rocker arm bracket screw
(1) Rocker Arm Assembly
(2) Push Rod
1-S48
ENGINE
49 to 68 N·m
5.0 to 7.0 kgf·m
37 to 50 lbf·ft
20 to 24 N·m
2.0 to 2.5 kgf·m
15 to 18 lbf·ft
20 to 24 N·m
2.0 to 2.5 kgf·m
15 to 18 lbf·ft
(4) Nozzle Holder Assembly
(5) Heat Seal
9Y1211109ENS0065US0
(3) Copper Gasket
(4) Heat Seal
9Y1211109ENS0066US0
24 to 27 N·m
2.4 to 2.8 kgf·m
18 to 20 lbf·ft
(3) Tappet
9Y1211109ENS0067US0
KiSC issued 11, 2014 A