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200 TROUBLESHOOTING
Page 9-11
PROPER FIRE RING/CYLINDER
SLEEVE-TOP COMBINATIONS
General Information
Two types of cylinder head gasket/fire ring kits
are available for E7 engines: a flat fire-ring kit and
a stepped fire-ring kit. Both kits include
instructions.
Two sleeve-top configurations are also available.
Use the correct fire ring and cylinder sleeve
combination to ensure full contact support and
improved combustion sealing. MACK
recommends using the latest cylinder sleeve
configuration when replacing all six sleeves. The
hardware selections for single cylinder sleeve
replacement and complete overhauls are
sometimes different. Either of the two correct
sleeve/fire ring configurations provide equal
combustion sealing.
Failure to use the correct fire ring can result in
insufficient sealing and damage to the engine.
To identify the fire ring/sleeve-top configuration,
look at the sleeve top outboard of the coining
bead. If the surface between the coining bead
and the sleeve OD is flat, it is an older sleeve and
requires a stepped fire ring. If the surface has a
step, use a flat fire ring. Refer to Figures 9-1
and 9-2.
Engines Built Prior to 1993
Refer to Figure 9-1.
All pre-1991 E7 engines were manufactured with
the type of cylinder sleeve shown in Figure 9-1,
and originally used flat fire rings. MACK no longer
recommends this combination. Replace the fire
rings on both heads with the stepped fire ring.
E7 engines built between January 1991 and June
1993 (before 3L serial number) require stepped
fire rings. The sleeve and piston ring sets for
these engines are different from earlier engines,
but the sleeve-top design is the same.
Figure 9-1— Cylinder Sleeve/Fire Ring Configuration (Through May 1993)
5-101.bk Page 11 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...