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200 BENCH PROCEDURES
Page 5-37
Figure 5-47 — Valve Seat Insert Installation
3. Grind inlet/exhaust valve seat inserts to
specification.
앫
Inlet valve inserts before November
1996: 30°
–
0'/+ 30' angle; November
1996 and later: 20° 30' ± 15' angle
앫
Exhaust valve inserts: 30°
–
0'/+ 30'
Always use 30-degree valves with 30-degree
valve inserts and 20-degree valves with
20-degree valve inserts. Excessive wear and
possible failure will result if 30-degree parts are
matched with 20-degree parts.
If valve seat insert widths exceed specifications
when grinding inserts, use a 15-degree angle
grinding stone to obtain correct width.
Refer to Figure 5-48.
4. After grinding is completed, thoroughly clean
valve seat insert.
5. Determine concentricity of each valve seat
insert relative to valve guide. Valve seat
runout is to be held within 0.001 (0.025 mm)
FIM (Full Indicator Movement), with finished
valve guide ID measurements made from
snug-fitting arbor (1) and through-mounted
into finished valve guides (2).
6. After valve insert has been ground and
cleaned, determine position of contact area
between valve and valve seat insert. Apply a
dab of Prussian Blue to valve face at four
points, 90 degrees apart.
7. Lower stem of valve into valve guide and
allow valve face to rest on seat insert.
Rotate valve 90 degrees on insert. Carefully
remove valve without making contact with
valve face. Properly ground inserts should
have full pattern on insert.
Thoroughly clean cylinder head after checking
valve seat inserts and before installing valves.
1. Valve seat insert
2. J 38586
3. J 8092
5-101.bk Page 37 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...