200 SETUP AND ADJUSTMENTS
Page 7-9
Slave Piston, Inlet Valve and
Exhaust Valve Lash Adjustments
Make the following adjustments with the engine
shut down. Coolant temperature must be below
100
!
F (38
!
C) to ensure proper adjustment.
On mechanically governed engines, before
barring engine for any reason, secure injection
pump stop lever in STOP position.
Do not rotate the engine crankshaft backward
when using the hub damper bolt. This might
change the torque.
1. Using engine barring socket J 38587,
manually rotate engine in normal rotation
direction.
2. Rotate until pointer in flywheel housing
aligns with the mark for valves 1 and 6 on
the flywheel and the No. 1 piston on the
compression stroke (or until the pointer
marked VALVE aligns with the TC mark on
the vibration damper, if equipped). This
provides the 30 degrees after TDC
relationship for valve lash adjustment
necessary with the E7 valve design.
Inlet Valve Adjustment
Inlet valve lash clearance is 0.016 inch
(0.406 mm).
1. Place a 0.016-inch (0.406 mm) thickness
gauge between the rocker arm and yoke.
2. Turn adjusting screw until a light drag is felt
on the thickness gauge.
3. After adjustment is complete, hold screw (to
keep from turning) and tighten locknut.
Torque locknut to 40 lb-ft (54 N•m) using
torque wrench J 24407 or equivalent.
4. After tightening locknut, recheck valve lash
clearance. Readjust as necessary.
Exhaust Valve Adjustment
Exhaust valve lash clearance is 0.024 inch
(0.610 mm) or 0.028 inch (0.711 mm) for
V-MAC II or mechanically governed engines
equipped with camshafts effective April 1996.
1. Place the appropriate thickness gauge
between the rocker arm and yoke.
Exhaust valve lash clearance is 0.028 inch
(0.711 mm) for V-MAC II or mechanically
governed engines equipped with the new cam
effective April 1996. Check the engine
identification plate for the proper setting. Refer to
Figure 7-10.
Figure 7-10 — Typical Engine Identification Plate
2. Turn adjusting screw until a light drag is felt
on the thickness gauge.
3. After adjustment is complete, hold screw (to
keep from turning) and tighten locknut.
Torque locknut to 40 lb-ft (54 N•m) using
torque wrench J 24407 or equivalent.
4. After tightening locknut, recheck valve lash
clearance. Readjust as necessary.
5-101.bk Page 9 Friday, March 17, 2006 11:05 AM
Summary of Contents for E7
Page 1: ...E7 ENGINE OVERHAUL AUGUST 1997 ENGINE 5 101...
Page 2: ...Page 0 front fr5 Page 0 Friday March 17 2006 11 04 AM...
Page 5: ...E7ENGINE OVERHAUL MARCH 2006 2 5M REP AUGUST 1997 10M MACK TRUCKS INC 1997 ENGINE 5 101...
Page 13: ...ABOUT THIS MANUAL Page ix ABOUT THIS MANUAL front fr5 Page ix Friday March 17 2006 11 04 AM...
Page 15: ...TABLE OF CONTENTS Page xi TABLE OF CONTENTS front fr5 Page xi Friday March 17 2006 11 04 AM...
Page 24: ...Page xx NOTES front fr5 Page xx Friday March 17 2006 11 04 AM...
Page 31: ...200 SPECIFICATIONS Page 2 1 SPECIFICATIONS 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Page 55: ...200 ENGINE REMOVAL Page 3 1 ENGINE REMOVAL 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Page 58: ...Page 3 4 NOTES 5 101 bk Page 4 Friday March 17 2006 11 05 AM...
Page 90: ...Page 4 32 NOTES 5 101 bk Page 32 Friday March 17 2006 11 05 AM...
Page 91: ...200 BENCH PROCEDURES Page 5 1 BENCH PROCEDURES 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Page 158: ...Page 5 68 NOTES 5 101 bk Page 68 Friday March 17 2006 11 05 AM...
Page 159: ...200 ENGINE ASSEMBLY Page 6 1 ENGINE ASSEMBLY 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Page 240: ...Page 6 82 NOTES 5 101 bk Page 82 Friday March 17 2006 11 05 AM...
Page 272: ...Page 8 10 NOTES 5 101 bk Page 10 Friday March 17 2006 11 05 AM...
Page 273: ...200 TROUBLESHOOTING Page 9 1 TROUBLESHOOTING 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Page 292: ...Page 9 20 NOTES 5 101 bk Page 20 Friday March 17 2006 11 05 AM...
Page 293: ...200 APPENDIX Page 10 1 APPENDIX 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Page 295: ...200 APPENDIX Page 10 3 E7 LUBRICATION SYSTEM 5 101 bk Page 3 Friday March 17 2006 11 05 AM...
Page 296: ...Page 10 4 200 APPENDIX E7 COOLING SYSTEM 5 101 bk Page 4 Friday March 17 2006 11 05 AM...
Page 297: ...INDEX Page 11 1 INDEX INDEX FR5 Page 1 Friday March 17 2006 11 04 AM...
Page 302: ...Page 11 6 NOTES INDEX FR5 Page 6 Friday March 17 2006 11 04 AM...
Page 303: ...E7 ENGINE OVERHAUL PRINTED IN U S A ENGINE 5 101 MACK TRUCKS INC 1997...