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200 ENGINE ASSEMBLY
Page 6-27
Capscrews (Flywheel Housing)
A variety of lengths of flywheel housing-to-
cylinder block capscrews are used. Also, different
sized flat washers are used depending upon
whether a ductile iron or aluminum flywheel
housing is being installed. The following
illustrations show where the different length
capscrews should be installed in various flywheel
housings.
Refer to Figure 6-26.
On flywheel housing-to-cylinder block capscrew,
No. 429GC23M, the dash suffix denotes the
length of the capscrew.
앫
-M3 is 3 inches long, -M2 is 2-9/16 inches
long, -M5 is 2-3/8 inches long, -M is 2 inches
long, and -M4 is 1-3/4 inches long.
Flat washers:
앫
271AM5008, approximately 3/16-inch thick.
Use with ductile iron flywheel housing.
앫
711GC1100P7, approximately 5/16-inch
thick. Use with aluminum flywheel housing.
앫
35AX1489, used with newer standardized
aluminum flywheel housing.
For standardization purposes, the E7 E-Tech™
flywheel housing castings are now being used on
the E7 engine. Production phase-in began mid-
October 1996. Along with the new flywheel
housing, a standardization of the flywheel
housing mounting hardware also took place. For
all new-style housings used on the E7 engine,
use the following mounting hardware:
앫
Two upper external mounting location
capscrews — M3 (3 inches long).
앫
Six internal mounting location capscrews —
M (2 inches long).
앫
Eight washers used with aluminum
housing — Part No. 35AX1489.
앫
Eight washers used with ductile iron
housing — Part No. 271AM5008.
Service replacement flywheel housings will be the
standardized flywheel housing. If an existing,
older E7 flywheel housing is replaced with the
newer standardized housing, the six
(429GC23M) two-inch capscrews must be used
at the internal mounting locations. If the older,
various-length mounting bolts are used to mount
the new-style housing, thread engagement is
insufficient for some of the shorter bolts, and the
longer bolts bottom in the cylinder block mounting
holes, causing damage to the threads. The new
appropriate mounting hardware comes with the
new-style flywheel housing supplied by the
MACK Truck Parts System.
5-101.bk Page 27 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...