Cam Gear On Camshaft; Checking Camshaft End Play - Navistar INTERNATIONAL DT 466 Service Manual

Cam Gear on Camshaft

WARNING: To prevent serious personal
injury or possible death, wear heat resistant
gloves when handling heated components.
Figure 384 Heating the camshaft gear
CAUTION: To prevent engine damage, do not heat
the cam gear above 177 °C (350 °F). This will turn the
gear blue and reduce wear resistance. Do not use any
gear turned blue.
1. If the camshaft gear was removed from the
camshaft, heat the cam gear on a hot plate (Table
40) or other controlled heat source to 149-177 °C
(300-350 °F).
2. Pull camshaft assembly forward prior to sliding
heated gear onto camshaft.
Figure 385 Installing cam gear on camshaft
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
CRANKCASE, CRANKSHAFT, AND CAMSHAFT
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
3. Use heat resistant gloves to install the heated
cam gear onto the camshaft.
should slide onto the camshaft with only slight
hand pressure.
thoroughly seated) until it cools onto the camshaft
(approximately 30 seconds).
NOTE: Heated gear should easily slide onto camshaft.
Do not tap into place to avoid camshaft end play
issues. If gear does not slide easily, reheat gear and
try again.

Checking Camshaft End Play

Figure 386 Checking camshaft end play
1. Dial indicator set
2. Camshaft
1. Mount magnetic base of a dial indicator set (Table
40) on a flat engine surface.
2. Place the tip of the dial indicator on the end of the
camshaft and zero the dial indicator.
3. Use a screwdriver to pry the camshaft gear back
and forth. Record the reading on the dial indicator.
If the end play exceeds the specification, remove
the cam gear and pull the camshaft forward.
Repeat the procedure.
EGES-265-2
The cam gear
Hold the cam gear (while
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