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200 ENGINE ASSEMBLY
Page 6-5
[213 CC] Camshaft Bushings
DESCRIPTION
Lubrication oil is pumped into the cylinder block
main oil gallery. Oil from the gallery flows to each
main bearing bushing bore and then on to the
respective camshaft bushing bore, providing
lubrication for both the crankshaft and camshaft
bushings. Camshaft bushing bores No. 1, 2 and 5
are grooved to supply oil to other components as
well. Oil from the No. 1 camshaft bushing bore
flows on through a drilled passage to lubricate the
front auxiliary driveshaft bushing. Oil from the
No. 2 and 5 camshaft bushing bores flows on
through vertical drilled passages to lubricate the
rocker arm assemblies. Oil from the No. 4
camshaft bushing bore flows through a cast
groove in the cylinder block bushing bore to
lubricate the fuel injection pump, the rear auxiliary
driveshaft bushing, and the air compressor.
INSPECTION
During in-chassis overhaul, check the inside
diameter of the camshaft bushings. If overhauling
out-of-chassis, replace camshaft bushings.
1. Using a telescope gauge or suitable inside
micrometer, measure the ID of each
camshaft bushing in the cylinder block.
Record the dimensions. Refer to Figure 6-4.
Figure 6-4 — Measuring Camshaft Bushing ID
2. Refer to the Fits and Limits chart for
camshaft bushing measurement
specifications. Check the recorded
dimensions against the specifications.
3. If bore size exceeds tolerance or if there is
any evidence of scratching or scoring,
replace the bushings.
REMOVAL
Refer to Figure 6-5.
Use camshaft bushing remover/installer kit
J 37713 (use with J 21428-01 kit) for camshaft
bushing removal.
Camshaft bushings are identified in sequence
from 1 to 7, starting from the front of the engine.
1. Using camshaft bushing remover/installer kit
J 21428-01 (2), with the correct pilot adapter
(J 37713 kit) and a hammer (3), remove the
No. 1 camshaft bushing (4) from the cylinder
block (1).
2. Remove the remaining six bushings in
sequence.
Figure 6-5 — Camshaft Bushing Removal
1. Cylinder block
2. Camshaft bushing
remover/installer
(J 21428-01 kit)
3. Hammer
4. No. 1 camshaft bushing
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5-101.bk Page 5 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...