TM-9-2815-200-35
ENGINE, WITH CONTAINER:TURBOSUPERCHARGED, DIESEL ,FUEL INJECTION ,90-DEGREE “V” TYPE, AIR - COOLED ,12 - CYLINDER , ASSEMBLY ;MODELS AVDS-1790-2M (2815-856-4996), AVDS-1790-2A AND AVDS-1790-2AM (2815-856-9005)
TECHNICAL MANUAL; DIRECT SUPPORT, GENERAL SUPPORT AND DEPOT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS
TM-9-2815-200-35 - Page 379 of 779
Table 6-19. Oil Pump Overhaul Standards
Component
Depth o f
Impeller bore
Length o f
impeller
Impellers and
shafts
Impellers and
shafts
Impellers and
shafts
Fig.
No.
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
B-9
Ref.
letter
A
B
F
L
L-A
Z
Z-B
D D
DD- F
E
M
E- M
AA
W
AA-W
C C
AA-
C C
B B
J
BB-J
D-E E
Y-G
D-E E
G-Y
K
X
K-X
C
H
C-H
L L
H-LL
F F
G G
FF-
Point of measurement
Piston sprayer pump
Pressure pump
Scavenge pump
Pieton sprayer pump
End play between impellers and impeller
housings with housings correctly assembled
Pressure pump
End play between impellers and impeller
housings with housings correctly assembled
Scavenge pump
End play between impellers and impeller
housings with housings correctly assembled
Outside diameter of piston sprayer pump cover
end of oil pump impeller drive shaft
Inside diameter of bearing bore in cover
Fit of shaft in cover bore
Outside diameter of pressure pump and
scavenge pump bearing surfaces on oil pump
impeller drive shaft
Inside diameter of bearing in oil pressure pump
housing
Fit of impeller drive shaft in housing bore
Inside diameter of bearing bore in scavenge
pump housing
Fit of impeller drive shaft in housing bore
Outside diameter of scavenge pump cover
bearing surface end of impeller drive shaft
Inside diameter of bearing bore in scavenge
pump cover
Fit of impeller drive shaft in scavenge pump
cover
Outside diameter of pressure and scavenge
pump drive and driven impellers
Inside diameter of pressure and scavenge
pump impeller bores
Fit (radial clearance) of impellers in housing
Outside diameter of piston sprayer pump
impellers
Inside diameter of piston sprayer pump im-
peller bores
Fit (radial clearance) of impellers in housing
Inside diameter of pressure oil pump driven
impeller
Outside diameter of oil pump driven impeller
shaft
Fit of impeller on shaft
Inside diameter of scavenge oil pump driven
impeller
Fit of impeller on shaft
Inside diameter of scavenge oil pump driven
impeller
Outside diameter of oil pump driven impeller
shaft
Fit of impeller on shaft
G G
Note. Refer to paragraph 6-3b for explanation of symbols.
Sizes and fits
of new parts
0.8750
0.8770
2.0000
2.0020
2.3500
2.3520
0.8720
0.8730
0.0020L 0.0050 L
1.9965
1.9975
0.0025L 0.0055 L
2.3460
2.3470
0.0030L 0.0060 L
0.9830
0.9835
0.9850
0.9860
0.0015L 0.0030 L
1.1310
1.1315
1.1330
1.1340
0.0015L 0.0030 L
1.1330
1.1340
0.0015L 0.0030 L
0.9830 0.983 5
0.9850 0.986 0
0.0015L 0.0030L
2.4814
2.4818
2.4850
2.4862
0.0032L 0.0048L
2.2490
2.2500
2.2530
2.2542
0.0030L 0.0052 L
0.9860
0.9865
0.9834
0.9839
0.0021L 0.0031 L
0.9860
0.9865
0.0021L 0.0031 L
0.9860
0.9865
0.9834
0.9839
0.0021L 0.0031 L
Wear limits
0.8775
2.0025
2.3525
0.8710
0.0065L
1.9960
0.0065L
2.3455
0.0070L
0.9827
0.9870
0.0043L
1.1307
1.1350
0.0043L
1.1350
0.0043L
0.9827
0.9870
0.0043L
2.4810
2.4875
0.0065L
2.2485
2.2550
0.0065L
0.9870
0.9829
0.0041L
0.9870
0.0041L
0.9870
0.9829
0.0041L
6-85
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