Chapter 3 Fuel Injection Equipment
9. Pump Reassembly, Adjustment and Inspection
i
4LHA Series
9. Pump Reassembly,
Adjustment
and
Inspection
1. Feed Pump Assembly
Set
the rotor and blades inside the liner as a
unit, so
that
their axial clearance will be within
the specified tolerance. (The feed pump is deli-
vered as a pre-adjusted assembly.)
Clearance
between liner and rotor : A
0.010-0.020 mm.
Clearance
between liner and blades: B
0.010-0.020 mm.
Fig.
1
2. Roller
Height
When
reassembling the roller holder, select
the roller so
that
the difference in height (See
Fig.
2) will be within the specified tolerance.
(The roller holder is delivered as a pre-adjusted
assembly.)
Difference in roller height:
±0.02 mm.
Fig.
2
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•
Center
plug
3.
Distributor
Head
Inspection
a) Plunger barrel movement.
With the center plug tightened to the head
at the specified torque 58.8-78.5 N-m(6-8
kgf.m) insert the plunger into the barrel.
Confirm
that
in any position the plunger
slides
smoothly in the barrel.
Fig.
3
3-1-44
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