SHAFT
POSITION
OF
FLAT
FOR
REMOVING AND
. INSTALLING PUMP
TO
ADAPTER
TOP END
FUEL PLUNGER
DO
NOT CHANGE
EXTERNAL
ASSEMBLY
RETAINING LOCK NUT
DOWEL PIN
ADA~TER
MOUNTING
BOLT HOLES (4)
PUMP MOUNTING
HOLE
"OLE'
(4)
(BRYCE ONLY)
FIGURE
61.
INJECTION
PUMP
ADAPTER
ASSEMBLY
I
E-
LE
LE
PRESS
DOWN
TO
88
1"
'h
c=
T"f
REMOVE
BEARING
DRIVER
4XJ-0376
SEAL SPACER BEARING SPACER
SLEEVE
SLEEVE
FIGURE
62.
BEARING
INSTALLATION
AND
TOOL
PACKAGE
(420-0374)
A
diesel engine cannof tolerate dirt
in the fuel system.
Dirt
is one of the
major causes of diesel engine failure.
A
tiny piece
of
dirt in fhe injection system may stop your unif. When
opening any part of fhe fuel system beyond the
diesel fuelas they are removed. Before installing new
orusedparts, flush them thoroughly, andinsfallwhile
sfill wet.
secondary fuel filter, place all parts in a pan of clean
Bearing and Seal Replacement Procedure
After
adapter bly
has
been
removed from
the
engine, replace the bearings and seal on the yoke
shaft as follows:
Removal
1.
Remove fuel control arm.
2.
Remove four mounting bolts and
lift
adapter,
assembly
off
of engine block.
It
may be necessary
to tap assembly with lead or plastic hammer
in
order to loosen adapter from gasket.
3.
Discard old gasket and clean area on engine
block.
A
new gasket is required for reassembly of
adapter to prevent oil leaks.
1.
Referring to Figure
62,
press shaft and yoke
assembly towards center of adapter until shaft
and bottom bearing slips
out
bottom end.
2.
Using solid end of bearing driver, press top bear-
ing and seal out bottom end.
3.
Remove external retaining ring and slide bearing
off
yoke shaft.
4.
Thoroughly clean and oil yoke and shaft assem-
bly and adapter for installing new bearings and
seal.
5.
Install bottom bearing from top of adapter cast-
ing, using hollow end of bearing driver. Makesure
"lettered" side of bearing faces upward and that
tool bottoms against top
of
adapter boss.
6.
Slide yoke and shaft assembly up through bear-
ing,
then
support
yoke and shaft assembly
for
installing the retaining ring.
4.
Thoroughly clean adapter assembly before re-
5.
Place adapter assembly in suitable holder for
Do
not clamp in a vise unless
machined surfaces are protected
placing new bearings and oil seal.
removing and installing bearings and seal.
from damage by thejaws of the vise.
53
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