1-S36
GL6000, GL7000, GL9000, GL11000, WSM
ENGINE
(3) Piston and Connecting Rod
Connecting Rod
1. Remove the connecting rod caps (1).
(When reassembling)
• Align the marks (a) with each other. (Face the marks toward the
injection pump.)
• Apply engine oil to the connecting rod screws and lightly screw it
in by hand, then tighten it to the specified torque.
If the connecting rod screw won’t be screwed in smoothly, clean
the threads.
If the connecting rod screw is still hard to screw in, replace it.
W10275480
Pistons
1. Turn the flywheel and bring the piston to top dead center.
2. Draw out the piston upward by lightly tapping it from the bottom
of the crankcase with the grip of a hammer.
3. Draw out the other piston in the same method as above.
(When reassembling)
• Before inserting the piston into the cylinder, apply enough engine
oil to the piston.
• When inserting the piston into the cylinder, face the mark on the
connecting rod to the injection pump.
• Do not change the combination of cylinder and piston. Make
sure of the position of each piston by marking. For example,
mark “1” on the No.1 piston.
• Place the piston rings with their gaps at 0.79 rad (45 ) from
the piston pin’s direction at shown in the figure.
• Carefully insert the pistons using a piston ring compressor
(1).
W10277450
Tightening torque Connecting rod screw
26.5 to 30.4 N·m
2.7 to 3.1 kgf·m
19.5 to 22.4 lbf·ft
(1) Connecting Rod Cap (a) Mark
(1) Piston Ring Compressor (A) Top Ring Gap
(B) Second Ring Gap
(C) Oil Ring Gap
(D) Piston Pin Hole
(a) 0.785 rad (45 )
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