TM-9-2815-210-34-2-2

ENGINE ASSEMBLY, DIESEL (MULTIFUEL): NATURALLY ASPIRATED OR TURBOCHARGED, FUEL-INJECTED, WATER-COOLED, 6-CYLINDER

TECHNICAL MANUAL; TROUBLESHOOTING; DIRECT SUPPORT AND GENERAL SUPPORT LEVEL; VOLUME 2 OF 2; PART 2 OF 2

APRIL 1981

TM-9-2815-210-34-2-2 - Page 254 of 968

TM 9-2815-210-34-2-2

FRAME 2 3

1.

2.

3.

NOTE

If no exhaust valve seat inserts (1) were taken out, go

to para 4-19c(2).

Two sizes of exhaust valve seat inserts (1) are used in

cylinder heads (2).

Cylinder head can use a combination

of exhaust valve seat insert sizes.

Measure each exhaust

valve seat counterbore (3) to tell whether to put in a

standard size or oversize exhaust valve seat insert.

Readings must be within limits given in table 4-49. The

letter T shows a tight fit.

If readings are not within

given limits, throw away part and get a new one.

Measure and note inside diameter of three exhaust valve seat counterbores (3).

If diameter is 1.8080 to 1.8095 inches, this is a standard size exhaust valve

seat counterbore.

If diameter is 1.8180 to 1.8195 inches, this is a 0.0100-

inch oversize exhaust valve seat counterbore.

NOTE

Used exhaust valve seat inserts, (1) that were not worn

were tagged so they can be put back in the same place.

Because machine shop may have machined some standard

size exhaust valve seat counterbores (3) into oversize

exhaust valve seat counterbores, some exhaust valve

seat inserts may be too small.

Measure and note outside diameter of each exhaust valve seat insert (1) to be

put in.

Standard size exhaust valve seat inserts go in standard size exhaust

valve

seat

counterbores

(3).

For 0.0100-inch oversize exhaust valve seat

counterbores, use 0.0100-inch oversize exhaust valve seat inserts.

Refer to

table 4-49. for exhaust valve seat insert sizes.

Measure fit of each exhaust valve seat insert (1) in its exhaust valve seat

counterbore (3).

GO TO FRAME 24

4-235