Reconditioning; Diagnostic Tests Procedures And Service Parts; Reconditioning Procedures - Navistar INTERNATIONAL DT 466 Service Manual

394
Figure 621 Measure between valve bridge and
brake actuator
4. Measure brake lash when engine is cold. Put
0.048 mm (0.019 in) feeler gauge (long) (Table
56) between the pivot foot and valve bridge, a
light drag on the feeler gauge should be felt. If
adjustment is required, loosen locknut and turn
actuator adjustment screw.
5. Once brake lash is set, tighten the locknut to
Special Torque (Table 55) and remove the feeler
gauge. Recheck for light drag on feeler gauge. If
drag is too tight or loose, repeat steps 4 and 5.
Corresponding valve lash can be adjusted before
rotating crankshaft.
6. Turn crankshaft 360° in the direction of engine
rotation to remove gear lash from gear train and
realign the timing mark on the damper pulley with
the TDC mark on the front cover.
7. If piston 6 is at TDC compression, see Chart 2
(page393 ) and do steps 4 and 5 for cylinders 2, 4,
and 6.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
DIAMOND LOGIC® ENGINE BRAKE
EGES-265-2
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.

Reconditioning

Diagnostic Tests Procedures and Service Parts

See Engine Diagnostic Manual for diagnostic test
procedures. The following service parts are available,
if required after diagnostic testing.
• BCP sensor
• Brake actuator piston assembly
• Brake shutoff valve assembly
• High-pressure oil rail bolt, M8 x 90 (12)
• ICP sensor
• Oil inlet O-ring
• Oil pressure relief valve
• Plug assembly, M12
• Rail end plug assembly (2)
The following reconditioning procedures are provided
to replace specific components determined faulty
during diagnostic tests. A new Brake Shutoff Valve,
BCP sensor, or ICP Sensor can be installed without
removing the high-pressure oil rail, The High-pressure
oil rail must be removed to install new brake actuator
pistons.

Reconditioning Procedures

NOTE: Remove valve cover. See (Valve Cover, page
120 ) in the "Cylinder Head and Valve Train" section of
this manual.
NOTE: If the valve cover is removed for any reason,
check six brake piston locknuts. If loose, reset during
brake lash adjustment.