Chapter 3 Fuel Injection Equipment
3. Disassembly, Reassembly and Inspection of Fuel Injection Pump
41HA Series
(6) Inspection of rack and control sleeve
1)
Rack
Inspect the bending of the rack and wear or defor-
mation of its fit
with
ball of control
sleeve.
2) Control sleeve
Inspect for wear or deformation of the ball and fit
to the plunger.
NOTE: Rack resistance increases if the fitting or slid-
ing surfaces are not in good working order,
and this affects the condition of the engine
(rough rpm, over running, etc.)
(7) Inspection of plunger spring and delivery spring
Inspect springs for scratches,
cracks,
breakage,
uneven
wear and rust.
(8) Inspection of oil
seals
Inspect oil
seals
to see if they are burred or scratch-
ed.
(9) Inspection of roller guide stop
Inspect the side of the tip, replace if excessively
worn.
(10) Replacement of O-ring
Replace
if they are removed.
3-3
Reassembly
of fuel injectio pump
Preparation
After inspection, arrange and clean all parts.
See
Inspection of
Fuel
Pump for inspection procedure.
(1) Turn the match mark on the flange of plunger
barrel to face
left
from
driving side of the pump,
insert the plunger barrel
from
the top of the pump,
adjust it
with
the match mark on pump body, and
tighten
the nuts.
tightening torque
25.5
- 27.5 (2.6 - 2.8) N(kgf) m
NOTE: Coat the silicon oil with the O-ring.
3-2-27
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