TM 9-2330-356-14
(2) Timing Method 1. This is a means for
calculating the correct button thickness before the pump
is installed. It requires the port closing dimensions and
button thickness from the pump being replaced.
Code
Substitute the dimensions for those in the formula below
No.
Part No
Size
Or Letter
and calculate the new button thickness. Determine the
button code letter from table 7-4.
16
s
147-0186
0.134
R
15
147-0187
0.131
P
14
147-0188
0.128
Example Formula:
N
13
147-0189
0.125
Port closing dimension of old pump
M
12
0.122
147-0190
(removed from engine) . . . . . . . . . . . . . . . . . . . 1.109
1
A
147-0147
0.119
B
2
0.116
147-0148
Button thickness of old pump . . . . . . . . . . . . . + 0.107
c
3
147-0149
0.113
1.216
D
4
147-0150
0.110
Port closing dimension of new pump . . . . . . . . -1.103
E
5
147-0151
0.107
Button thickness of new pump . . . . . . . . . . . . . . 0.113
None
11
147-0161
0.104
Use button C
6
F
147-0152
0.101
NOTE
7
H
147-0153
0.098
8
J
147-0154
0.095
Always use button thickness closest to this
K
9
147-0155
0.092
dimension.
10
L
147-0158
0.089
Install the correct button in pump (fig. 7-76). Install pump
