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200 SPECIFICATIONS
SPECIFICATIONS
Improved Design
Compared to earlier designs, the E7 engines
include improvements required to accommodate
higher horsepower ratings and future emission
standards. These changes require increased
displacement, higher peak cylinder pressures
and a superior engine cooling system. This was
all accomplished without a substantial change in
engine weight.
Engine General Specifications
Characteristic
Description
Weight (wet*)
2300 lbs. (1043.3 kg)
Weight (dry)
2210 lbs. (1002.5 kg)
Displacement
728 cu. in. (12L)
Bore and stroke
4-7/8 x 6-1/2 in. (123.83 x 165.10 mm)
Engine oil capacity
33.5 qts. (32L)
Coolant capacity
13 qts. (12.3L)
Compression ratio
16.5:1 (up to 375 hp); 15.3:1 (375 hp and above)
Fasteners and threads
Metric and English
*Wet includes oil and coolant
Engine Features
Component
Description
Cylinder block
Alloyed gray cast iron
Main bearing caps
Ductile iron, intermediate supported with buttress screws to prevent bulkhead
movement
Flywheel housing
Standard — Aluminum, standard SAE No. 1, precision doweled
Optional — Ductile iron
Cylinder sleeves
Wet/dry, replaceable, centrifugally cast, alloyed cast iron
Cylinder sleeve seal
Teflon-coated AFLAS/EPDM, intolerant of oil (use glycol for installation
lubricant)
Cylinder heads
Alloy gray cast iron; four valves per cylinder, two cylinder heads per engine
Cylinder head gaskets
— Body
Nonasbestos material with a steel core (two per engine)
— Fire ring
Steel, six per engine
Piston assembly
Refer to Tune-Up Specifications manual.
Pistons (1989–1990)
Aluminum alloy, Ni-resist insert top two grooves, steel insert third groove, oval
and roll burnished pin bores, continuous oil cooling
Pistons (1991 and later)
Two-piece, top crown material steel, aluminum alloy skirt, three-ring piston
Piston rings (1989–1990)
— Compression
Chrome, three per cylinder
— Oil control
Chrome, one per cylinder
Piston rings (1991 and later)
— Compression
Plasma, top ring; chrome, second ring
— Oil control
Chrome, one per cylinder
Piston pins
Full-floating, 2.25 inch (5.72 cm) diameter, full-pressure lubrication through
rifle-drilled holes in connecting rods
5-101.bk Page 2 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...