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FRAME 20 - TM-9-2815-210-34-2-20251
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TM-9-2815-210-34-2-2 Engine Assembly Diesel (MULTIFUEL): Naturally Asspirated or Turbocharged Fuel-Injected Water-Cooled 6-Cylider Manual
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Table 4-48. Intake Valve Seat Inserts and Counterbores Wear Limits
TM 9-2815-210-34-2-2
FRAME
21
NOTE
I f no intake valve seat inserts (1) were taken out, go
to frame 23.
T w o sizes of intake valve seat inserts (1) are used in
t h e s e cylinder heads (2). Cylinder head can use a
c o m b i n a t i o n of intake valve seat insert sizes. Measure
e a c h intake valve seat counterbore (3) to tell whether
to put in a standard size or oversize intake valve seat
insert.
Readings must be within limits given in table 4-48.
T h e letter T shows a tight fit. If readings are not
within given limits, throw away part and get a new one.
1.
M e a s u r e and note inside diameter of three intake valve seat counterbores (3).
If diameter is 2.0580 to 2.0595 inches, this is a standard size intake valve seat
c o u n t e r b o r e .  If diameter is 2.0680 to 2.0695 inches, this is a 0.0100 oversize
i n t a k e valve seat counterbore.
NOTE
Used intake valve seat inserts (1) that were not worn
w e r e tagged so they can be put back in the same place.
B e c a u s e machine shop may have machined some standard
s i z e intake valve seat counterbores (3) into oversize in-
t a k e valve seat counterbores, some intake valve seat
inserts may now be too small.
Measure and note outside diameter of each intake valve seat insert (1) to be
2.
put in.  S t a n d a r d size intake valve seat inserts go in standard size intake
v a l v e s e a t c o u n t e r b o r e s ( 3 ) .  For  0.0100-inch  oversize  intake  valve  seat
c o u n t e r b o r e s , use 0.0100­inch oversize intake valve seat inserts. Refer to
t a b l e 4-48 for sizes of intake valve seat inserts.
3 . Measure fit of each intake valve seat insert (1) in its intake valve seat counter-
bore (3).
GO TO FRAME 22
4-232

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