E-TECH
™
ENGINE
SERVICE MANUAL
(Includes Left-Side Redesign)
OCTOBER 2000
(REVISED)
5-106
front.fm Page -ii Friday, August 4, 2000 11:16 AM
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ERRATA SHEET — ENGINE
Crankshaft Center Main Bearing
Specification Update
Effective January 2006, Mack Powertrain Engineering has
widened the crankshaft center main bearing runout
specification. The maximum allowable crankshaft runout
specification was changed from 0.005 in. (0.127 mm) to
0.007 in. (0.178 mm). The manuals listed below are affected
by this change.
Reference: Engine Manuals
5-101 E7
5-106 E-Tech™
5-107 E7G
5-110 ASET™ AI/AMI
5-111 ASET™ AC
JANUARY 2006 © MACK TRUCKS, INC. 2006
(NEW ISSUE) MACK ENGINE SERIES
10_125erb.fm Page 2 Tuesday, April 18, 2006 11:43 AM
SB-210-034 — Page 1 of 1
2 0 0 2 . C N I , S K C U R T K C A M © 5 0 1 8 1 A P , N W O T N E L L A , S N O I T A C I L B U P E C I V R E S
SERVICE BULLETIN
NUMBER: SB-210-034
DATE: 5/14/02
MODEL: E-Tech™
(Also applies to Mack Trucks Australia)
MISCELLANEOUS FASTENER CHANGES — E-TECH™ ENGINES
The following fastener changes were made on E-Tech™ engines:
Injection Nozzle Hold-Down Screws — Beginning 3/00, the injection nozzle hold-
down screws having the 15 mm external hex head have been changed to a new screw
(part No. 421GC2116M) that has a 16 mm internal hex head.
Rocker Shaft Mounting Bracket Bolts — Beginning 4/00, the bolts and washers
used to secure the rocker shaft mounting brackets to the cylinder head have been
changed to a flange-head bolt (part No. 65AM5010). Tightening torque value for this
new fastener remains the same at 40 lb-ft (50 N•m).
Air Compressor Mounting Screw — Beginning 8/00, the original hex-head screw has
been changed to a flange-head screw (part No. 27AM16). This change was made so
that the mounting screw clamp load is distributed over a wider area of the flat washer.
Camshaft Thrust Washer — Beginning 10/00, the two screws and washers used to
secure the camshaft thrust washer to the block were changed to a flange-head screw
(part No. 66AM44). Tightening torque value for this fastener remains the same at 15 lb-
ft (20 N•m).
Cylinder Head Capscrews — Beginning 6/01, the cylinder head capscrews and the
separate hardened flat washer were replaced in production with capscrews having
captured washers (part number series 400GC317M). This change was implemented to
prevent the possibility of omitting or installing more than one washer during assembly.
Additionally, the outside diameter of the captured washer was reduced slightly
(approximately 0.030″) to accommodate the redesigned cylinder head cover that was
phased into production 7/01. Cylinder head capscrew torque remains the same at 205
lb-ft (278 N•m).
Flywheel-to-crankshaft mounting bolts — Beginning 9/01, bolts having captured
washers (part Nos. 419GC31M and 419GC31M2) were released into production to
replace the previously used bolts and separate hardened flat washer used to secure
the flywheel to the crankshaft. Flywheel-to-crankshaft mounting bolt torque remains the
same at 185 lb-ft (250 N•m).
Electronic Unit Pump (EUP) hold-down screws — Beginning 11/01, new hold-down
screws (part No. 421GC2123M) were released into production for the electronic unit
pumps. These screws are dimensionally the same as the previously used screws, but
conform to a more stringent specification that controls minor surface forming defects to
a greater degree than for common fasteners.Torque of the EUP hold-down bolts has
been changed from 42 lb-ft (57 N·m) to 60 lb-ft (81 N·m).
Turbocharger Mounting Nuts — Beginning 5/02, new turbocharger mounting nuts
were released into production. These nuts (part No. 142GC247M) are composed of
silver-plated stainless steel to provide greater resistance to heat than the previous nuts.
Additionally, these nuts have the Spiralock™ self-locking thread feature to prevent
loosening in service.
E-TECH
™
ENGINE
SERVICE MANUAL
(Includes Left-Side Redesign)
MAY 2006 REPRINTED 2.5M
SEPTEMBER 2004 REPRINTED 2.5M
APRIL 2003 REPRINTED 2.5M
JUNE 2002 REPRINTED 2.5M
OCTOBER 2001 REPRINTED 2.5M
OCTOBER 2000
(REVISED – SUPERSEDED ISSUE JULY 1999)
© MACK TRUCKS, INC. 2000
5-106
ii
ATTENTION
The information in this manual is not all inclusive and
cannot take into account all unique situations. Note that
some illustrations are typical and may not reflect the
exact arrangement of every component installed on a
specific chassis.
The information, specifications, and illustrations in this
publication are based on information that was current at
the time of publication.
No part of this publication may be reproduced, stored in a
retrieval system, or be transmitted in any form by any
means including electronic, mechanical, photocopying,
recording, or otherwise without prior written permission
of Mack Trucks, Inc.
front.fm Page ii Friday, August 4, 2000 11:16 AM
TABLE OF CONTENTS
iii
TABLE OF CONTENTS
front.fm Page iii Friday, August 4, 2000 11:16 AM
iv
TABLE OF CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Advisory Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Service Procedures and Tool Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
EXPLANATION OF NUMERICAL CODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ABOUT THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Changes from the Existing E-Tech™ Service Procedures Manual . . . . . . . . . . . . . . . . . . . . . . . 6
ABOUT THE E-TECH™ ENGINE AND ITS SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ENGINE MODEL IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Engine Information Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Engine Serial Number Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
DESCRIPTION & OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
E-TECH™ ENGINE DESIGN FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Electronic Unit Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
V-MAC III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Belt Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
J-Tech™ Engine Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Camshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Valve Train . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Low-Pressure Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Fuel Filtration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
High-Pressure Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
High-Pressure Fuel Injection Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Fuel Injector Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Cylinder Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Block Heater for Front (Water Pump) Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Cylinder Head Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Gear Train . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Air Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Power Steering Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Vibration Damper Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Front Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Centri-Max® Oil Filter Breather Vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Lubrication System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
GLOSSARY OF TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
ENGINE SYMPTOM DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
V-MAC III Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
CAMSHAFT TIMING AND LOBE LIFT CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Camshaft Timing Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Camshaft Lobe Lift Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
CHASSIS-MOUNTED CHARGE AIR COOLING TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Special Tool Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
CMCAC Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
CMCAC Pressure Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Restriction Pressure Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
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If you own or work with a 2006 MACK E-TECH truck engine, this service manual is an essential resource for you. It covers in great detail all the information you need to know for servicing your engine, including the left-side redesign. Whether you are a professional mechanic or a DIY enthusiast, this manual provides comprehensive guidance for servicing the E-TECH engine.
