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Page Title:
Table 6-19. Oil Pump Overhaul Standards |
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 Table 6-19. Oil Pump Overhaul Standards
Sizes and fits
Wear limits
Point of measurement
Fig.
Ref.
Component
of new parts
letter
No.
0.8775
Depth
of
0.8750
0.8770
Piston sprayer pump
A
2.0025
I m p e l l e r bore
2.0000
2.0020
P r e s s u r e pump
B
2.3525
2.3500
2.3520
Scavenge pump
F
0.8710
0.8720
0.8730
Pieton sprayer pump
L
Length
of
0.0065L
0.0020L
0.0050L
End play between impellers and impeller
L-A
impeller
housings with housings correctly assembled
1.9960
P r e s s u r e pump
1.9965
1.9975
Z
0.0065L
End play between impellers and impeller
0.0025L 0.0055L
Z-B
housings with housings correctly assembled
2.3455
Scavenge pump
2.3460
2.3470
DD
0.0070L
End play between impellers and impeller
0.0030L 0.0060L
DD-F
housings with housings correctly assembled
0.9827
Outside diameter of piston sprayer pump cover
Impellers and
0.9835
E
0.9830
end of oil pump impeller drive shaft
shafts
Inside diameter of bearing bore in cover
0.9870
0.9860
M
0.9850
Impellers and
Fit of shaft in cover bore
0.0043L
E-M
0.0015L 0.0030L
shafts
Outside diameter of pressure pump and
1.1307
1.1315
AA
1.1310
scavenge pump bearing surfaces on oil pump
impeller drive shaft
Inside diameter of bearing in oil pressure pump
1.1350
1.1330
1.1340
W
housing
Fit of impeller drive shaft in housing bore
0.0015L 0.0030L
0.0043L
AA-W
Inside diameter of bearing bore in scavenge
1.1330
1.1340
1.1350
CC
pump housing
Fit of impeller drive shaft in housing bore
0.0015L 0.0030L
0.0043L
AA-
CC
O u t s i d e diameter of scavenge pump cover
0.9827
0.9830 0.9835
BB
bearing surface end of impeller drive shaft
Inside diameter of bearing bore in scavenge
0.9870
0.9850 0.9860
J
pump cover
Fit of impeller drive shaft in scavenge pump
Impellers and
0.0043L
0.0015L
0.0030L
BB-J
cover
shafts
O u t s i d e diameter of pressure and scavenge
2.4810
2.4818
2.4814
D-EE
pump drive and driven impellers
I n s i d e diameter of pressure and scavenge
2.4875
2.4862
2.4850
Y-G
pump impeller bores
Fit (radial clearance) of impellers in housing
0.0065L
0.0032L
0.0048L
D-EE
G-Y
2.2485
2.2500
2.2490
K
Outside diameter of piston sprayer pump
impellers
2.2550
2.2542
2.2530
X
Inside diameter of piston sprayer pump im-
peller bores
0.0065L
0.0030L 0.0052L
Fit (radial clearance) of impellers in housing
K-X
0.9870
Inside diameter of pressure oil pump driven
0.9865
C
0.9860
impeller
0.9839
Outside diameter of oil pump driven impeller
0.9834
H
0.9829
shaft
Fit of impeller on shaft
0.0021L 0.0031L
0.0041L
C-H
Inside diameter of scavenge oil pump driven
0.9865
0.9860
LL
0.9870
impeller
Fit of impeller on shaft
0.0021L 0.0031L
H-LL
0.0041L
Inside diameter of scavenge oil pump driven
0.9860
0.9865
FF
0.9870
impeller
Outside diameter of oil pump driven impeller
0.9839
0.9834
GG
0.9829
shaft
Fit of impeller on shaft
FF-
0.0041L
0.0021L 0.0031L
GG
N o t e . Refer to paragraph 6-3b for explanation of symbols.
6-85
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