200 BENCH PROCEDURES
Page 5-45
Refer to Figures 5-57 and 5-58.
The following (Figures 5-57 and 5-58) show a
remanufactured cylinder head assembly ID and
20-degree intake valve ID.
Figure 5-57 — Remanufactured Cylinder Head
Assembly ID
Figure 5-58 — 20-Degree Intake Valve ID
Refer to Figure 5-57.
Any remanufactured cylinder head produced prior
to 12/13/96 will not have the assembly ID
stamped on it. Heads which do not have
assembly ID stamps are 30-degree intake valves
and seats.
Inlet and Exhaust Valve Installation
The inlet and exhaust valve head diameters are
nearly the same size. It is important, therefore, that
extra care be taken when assembling these valves.
With the new, more effective valve stem seals
(446GC328), pre-lubing the seals and valve
stems during installation is extremely important.
Perform the following:
앫
Valve Stem to Guide — If valves are
removed, lubricate the inside diameter of the
valve guides by using a “bottle brush” coated
with graphite grease. This is particularly
important when both the valves and the valve
guides are new. With an on-engine seal
replacement, pre-lube the valve stems with
engine oil while moving the valve up and
down, prior to installation of the valve spring.
앫
Valve Stem to Seal Lip — The inside
diameter of the seal lip and outside diameter
of the valve stem should be well-lubricated
with clean engine oil when installing the seal
over the valve stem.
It is essential that the J 42453 Valve Stem Seal
Installation tool be used to install the seals. This
tool bottoms on the cylinder head rocker arm
mounting bracket surface when the seal is
installed to the proper depth on the valve guide.
Using any non-bottoming type seal driver (such
as a socket) may result in distorting the top
surface of the seal casing which permanently
distorts the seal lip and prevents proper sealing,
or in the top rubber portion of the seal being cut
off. Also, do not use seal installer J 41150, or seal
damage will result. Tool J 41150 should be
discarded immediately after receiving tool
J 42453.
Before installing valve stem seals, be sure the
rotator has been installed. The rotator will not fit
over the valve stem seal.
5-101.bk Page 45 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...