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Page Title:
Table 4-49. Exhaust Valve Seat Inserts and Counterbores Wear Limits |
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 TM 9-2815-210-34-2-2
Size and Fit
Index
of New Parts
Wear Limit
Number
Item /Point of Measurement
(inches)
(inches)
E x h a u s t valve seat counter-
3
b o r e s inside diameter
S t a n d a r d size
1.8080 to 1.8090
1.8095
0.0100-inch
oversize
1.8180 to 1.8190
1.8195
1
E x h a u s t valve seat insert
o u t s i d e diameter
None
S t a n d a r d size
1.8120 to 1.8130
None
1.8220 to 1.8230
0.0100-inch
oversize
F i t of exhaust valve seat
3 and 1
0.0025T
i n s e r t in counterbore
0.0030T
to
0.0050T
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