![background image](http://html1.mh-extra.com/html/mack/e7/e7_service-manual_3065456209.webp)
200 ENGINE ASSEMBLY
Page 6-51
OIL PAN INSTALLATION WITH NEW E7
TIMING GEAR COVER AND FLYWHEEL
HOUSING
A new timing gear cover with 8-mm holes for oil
pan mounting was introduced with the 1994
certified E7-427 and E7-454 engines. This timing
cover is used in conjunction with the isolating oil
pan arrangement, but is also the service
replacement for timing covers with 10-mm tapped
holes for oil pan mounting. The new style timing
gear cover part No. is 333GB285AM.
New flywheel housings with 8-mm tapped holes
for oil pan mounting were also introduced on
engines with the isolating oil pan gasket. As with
the timing gear cover, the new housings are
service replacements for flywheel housings with
10-mm tapped holes for oil pan mounting.
Two types of 8-mm studs will be supplied with all
new timing gear covers and flywheel housing
service assemblies. One type of stud is used if
the engine has a fiber oil pan gasket, and the
other type is used for engines with the isolating oil
pan gasket.
When replacing a timing gear cover or a flywheel
housing on an engine equipped with an isolating
oil pan gasket, first remove the oil pan to prevent
damaging the rubber isolating oil pan gasket.
To prevent damaging the threads in the
aluminum timing gear cover and the aluminum
flywheel housing, be sure to use the designated
studs rather than capscrews.
앫
When servicing an old engine with
10-mm tapped holes in the oil pan
mounting rail with a new cylinder block
with 8-mm holes, reinstall the old oil pan
and a new fiber oil pan gasket with
26 new 8-mm fasteners,
No. 421GC293M, at the cylinder block
and four 10-mm fasteners, No. 66AM4,
at the timing gear cover and flywheel
housing. Lubricate and torque fasteners
No. 421GC293 to 24 lb-ft (33 N
폷
m) using
torque wrench J 24406 or equivalent.
앫
When servicing any engine with the fiber
oil pan gasket (8-mm or 10-mm tapped
holes in the cylinder block oil pan rail)
and installing a new timing gear cover
and/or a new flywheel housing, use the
two standard studs,
No. 107AM5019M, and two flange-head
nuts, No. 191AM2, to attach the oil pan
to the flywheel housing and/or the timing
gear cover. Lubricate and torque stud
nuts to 15 lb-ft (20 N
폷
m) using torque
wrench J 24406 or equivalent.
앫
When servicing any engine with the
isolating oil pan gasket (8-mm tapped
holes in the cylinder block oil pan rail),
and installing a new timing gear cover
and/or flywheel housing, use the two
shouldered studs, No. 616GC239M, with
two flange-head nuts, No. 189AM1, with
which the engine was originally built.
Lubricate and torque shoulder bolts to
15 lb-ft (20 N
폷
m) using torque wrench
J 24406 or equivalent.
[213 EV] CYLINDER HEADS
Description
Each cylinder head is a one-piece casting
covering three cylinders and securely held to the
top of the cylinder block by special-head bolts.
The inlet and exhaust valves, fuel injection
nozzles and the engine compression brake
housing assemblies (if equipped) are located in
the cylinder heads. Valve seat inserts and valve
guides are replaceable.
Cast-iron sleeves pass through the coolant cavity
of the cylinder head at the center of each
cylinder. The fuel injection nozzle holder
assemblies are installed in these sleeves. The
sleeve design and installation provides effective
cooling for the fuel injection nozzles, valves and
cylinder head. This sleeve also provides a sealed
passage for the nozzle return-to-tank fuel, which
passes from the nozzle sleeve chamber into a
drilled fuel return passage in the cylinder head
and back to the fuel tank.
The air inlet, coolant and exhaust manifolds are
secured to the cylinder heads. The fuel inlet lines
also enter the engine at the cylinder heads.
5-101.bk Page 51 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...