![background image](http://html1.mh-extra.com/html/mack/e7/e7_service-manual_3065456035.webp)
200 SPECIFICATIONS
Page 2-5
FASTENER TORQUE
Fastener Selection and Installation
Selection and correct installation of threaded
fasteners are essential parts of any assembly or
rebuild procedure. Fasteners hold much of a
vehicle together. If a fastener fails to do its job
properly, it can cause a minor problem such as a
loose mirror, or a large problem, such as loss of
steering control.
Because there are so many styles of fasteners, in
various sizes and quality grades, a mechanic
must have a working familiarity with the fasteners
commonly used in vehicles. Only in this way can
the correct selection and installation of the proper
fastener be ensured. Each fastener is intended to
do a particular job, and is selected by the vehicle
manufacturer for its suitability for that job.
Proper installation is as important as the selection
of the correct fastener. Improperly installing a
correct fastener is just as bad as using an
incorrect one. Undertightening and overtightening
both result in an improperly installed fastener.
When threaded fasteners are tightened, a slight
stretching of the fastener occurs, and it is this
stretching that binds the assembly together. If too
little tightening occurs, the slight stretching does
not happen, and the joint is not clamped securely.
If too much tightening occurs, the fastener will be
excessively stretched, causing narrowing of the
fastener and possibly breaking. Correct and
consistent use of a torque wrench ensures the
fasteners are properly tightened, and clamping
the pieces of the assembly together.
Figure 2-1 — Fastener Grading System
5-101.bk Page 5 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...