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Page Title:
Table 6-19. Oil Pump Overhaul Standards-continued |
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 Table 6-19. Oil Pump Overhaul Standards -
Continued
Sizes and fits
Wear limits
Ref.
Fig.
Point of measurement
Component
of new parts
letter
No.
0.9860
0.9865
Inside diameter of pieton sprayer pump im-
0.9870
Impellers and
HH
pellers
shafts - Cont' d
0.0021L
0.0031L
Fit of impellers on shaft
0.0041L
H-HH
*
2.0467
2.0472
Outside diameter of bearings
KK
Oil pump drive
2.0463
2.0470
Inside diameter of small gear end of drive gear
2.0473
and
gear
JJ
Fit of bearing in drive gear
0.0003L
0.0009T
0.0006L
bearings
JJ
2.0473
Inside diameter of large gear end of drive gear
2.0463
2.0470
P
0.0006L
Fit of bearing in drive gear
KK-P
0.0003L
0.0009T
*
Inside diameter of bearings
0.9839
0.9843
0.9833
Outside diameter of oil pump drive shaft
0.9835
0.9840
Q
O.OO1OL
Fit of bearings on shaft
0.0008L
0.0001T
N-Q
Spring helical compression (small)
s
pump
Oil
4.27 inch
Approximate free length
p r e s s u r e relief
95 lb to 105 1b
Load at 3.22 inch
valve
2.94 inch
Maximum solid height
Spring helical compression (large)
R
4.96 inch
Approximate free length
141.5 lb to 156.5 lb
Load at 3.22 inch
2.90 inch
Maximum solid height
0.3105
0.3110 0.3115
Outside diameter of valve stem
V
0.3170
0.3140 0.3160
Inside diameter of pressure relief valve body
T
0.0065L
0.0025L 0.0050L
Fit of valve stem in valve body
V-T
Spring, helical compression:
Piston
oil
U
2.69 inch
Approximate free length
cooling valve
63.4 lb to 75.4 lb
Load at 1.38 inch
1.31 inch
Maximum solid height
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