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 TM 55-1905-219-14-10
5-33. ENGINE ASSEMBLY-REMOVAL AND RUN IN-MAINTENANCE INSTRUCTIONS (Continued)
LOCATION
ITEM
ACTION
REMARKS
ENGINE RUN-IN INSTRUCTIONS (Cont)
3. Upon completion of the Basic Run-In and In-
spection, remove the load from the dynamometer
and reduce the engine speed gradually to idle
and then stop the engine.
(d) Inspection after basic run-in
The primary purpose of this inspection is to
provide a fine engine tune-up. First, tighten
the cylinder head and rocker arm shaft bolts to
the proper torque (refer to Chapter 3). Next,
complete the applicable tune-up procedure.
(e) Final Run-In
1. After all of the tests have been made and the
Engine Test Report is completed through Sec-
tion (d), the engine is ready for final
test. This portion of the test and run-in
procedure will assure the engine owner that
his engine has been rebuilt to deliver fac-
tory rated performance at the same maximum
speed and load which will be experienced in
the installation.
2. If the engine has been shut-down for one hour
or longer, it will be necessary to have a
warm-up period of 10 minutes at the same
speed and load used for warm-up in the Basic
Run-In. If piston rings, cylinder liners or
bearings have been replaced as a result of
findings in the Basic Run-In, the entire
Basic Run-In must be repeated asthough the
run-in and test procedures were started anew.
3. All readings observed during the Final Run-In
should fall within the range specified in the
Operating Conditions (refer to chapter 3), and
should be taken at full load unless otherwise
specified. Following is a brief discussion of
each condition to be observed.
5-527
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