How To Reassemble Injection Pump Components; How To Mount Injection Pump On The Engine - Kohler KD 625/2 Workshop Manual

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KD 625-2 Workshop Manual_cod. ED0053029380_1° ed_ rev. 00
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How to reassemble injection pump components

After replacing the worn-out components, reassemble the pump as
follows:
- Introduce sector gears into the pump body by making reference points
C match with the B points on the rack.
- Fix barrels with the eccentric screws F on the pump body.
- Fit valves with seats, springs, fillers and delivery unions tightening
them at 35 ÷ 40 Nm.
- Fit plungers by making reference points E match with the sector gear
D points.
- Fix retainers and springs; lock tappet with special stop.
- Check that both plungers have the same delivery by performing the
necessary measurements at the test bed; if delivery is not the same
set screw F.

How to mount injection pump on the engine

During reassembly, make sure the adjustment rod pin 1 is correctly
inserted into the opposite seat in the adjustment lever.

See "Injection advance adjustment" on page 63 for the choice of
the seals 2.
Tighten screws at 25 Nm.

Check that rack rod slides smoothly: if not, the engine may fail to start
or hunt.
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Fuel system
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