Yanmar 6CXM-GTE2 Service Manual download pdf (Page 87)

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3.11.7 Disassembly of fuel injection pump

When disassembling the fuel injection pump, separate the

parts for each cylinder and be careful not to get them mixed

up.

Be especially careful to keep the plunger/plunger barrel,

delivery valve/delivery valve seat and other assemblies sepa-

rate for each cylinder (the parts of each assembly must be

kept together and put them back in the same cylinder).

(1) Preparation

1) Wash off the dirt and grease on the outside of the

pump with cleaning oil (kerosene or diesel oil) before

disassembly.

2) Perform the work in a clean area.

3) Take off the drain plugs and drain the lubrication oil.

(2) Disassembly

1) Fix the outside of the automatic timer and remove the

nut.

2) Screw the puller into the nut hole.

Remove the automatic timer by screwing in the puller

bolt.

3) Remove the spring shoe setting screws of all cylinder.

4) Loosen the delivery valve holders until they can be

turned by fingers.

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Yanmar 6CXM-GTE2 Service Manual Page 87