200 BENCH PROCEDURES
Page 5-21
Wear protective gloves when handling heated
gears.
Refer to Figure 5-20.
4. Using an oven (not a torch), heat new
camshaft gear and new injection pump
driving gear to 400°F (205°C). Do not
exceed 400°F (205°C) and do not heat for
more than one to two hours. Do not exceed
two hours. Position camshaft gear with
timing marks facing out, and align keyway
with key.
Figure 5-20 — Camshaft Gear Installation, Heat Method
5. Push downward with a quick, even pressure
to install camshaft gear onto camshaft.
The heat-expanded gear bore will begin to
transfer heat to the camshaft as soon as the gear
bore and camshaft contact each other. This
makes it absolutely necessary that the gear be
installed in one very rapid motion to the fully
seated position. If the gear is allowed to stop on
the camshaft part way before fully seating, it will
become immovable. If this occurs, do not press-
install the gear. It should be press removed,
allowed to cool, and re-installed using the press
method.
6. There should be between 0.003–0.012 inch
(0.076–0.305 mm) clearance between rear
face of gear and thrust washer when
measured with thickness gauge.
7. Install injection pump driving gear (5) by
applying a quick, even pressure until gear
bottoms onto camshaft gear. Make sure
camshaft thrust washer holes are accessible
through injection pump driving gear.
PRESS METHOD — CAMSHAFT/INJECTION
PUMP DRIVING GEAR INSTALLATION
Refer to Figure 5-19.
1. Thoroughly clean and degrease camshaft
(3) and camshaft drive gear (1) with a
suitable contact cleaner that dries rapidly
and leaves no residue.
2. Install a new key (4) in camshaft key slot.
3. Place camshaft in a press, making sure
camshaft is supported by plates between
journal and first lobe.
Approximately 5 tons (4.54 MT) of force is
required to press each gear onto the camshaft.
When in the press, use suitable plates to support
the camshaft between the journal and first lobe.
Do not allow camshaft to rest on the floor.
4. Position a new thrust washer (2) on the
camshaft.
5. Prepare the gear bore with Locquic™
Primer T, or equivalent.
6. Apply a bead of Loctite
609, or equivalent,
to the gear bore.
7. Using a clean brush, spread Loctite 609
evenly onto the entire surface of the gear
bore.
Refer to Figure 5-21.
8. Position gear on camshaft with timing marks
facing upward and key slot in gear aligned
with key in shaft.
Do not attempt to increase clearance between
camshaft and gears by sanding gear bores or
camshaft.
5-101.bk Page 21 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...