Page 6-22
200 ENGINE ASSEMBLY
Refer to Figure 6-22.
1. Use Plastigage to check the main bearing
clearance. Check each bearing, one at a
time, by placing a piece of Plastigage on the
journal and tightening the cap in place. The
bearing clearance is determined by
measuring the width of the crushed
Plastigage with the supplied gauge.
2. Place a section of Plastigage (2) on the
journal to be checked and assemble main
bearing cap (1) to cylinder block.
3. Apply a light coat of oil on threads of the
bearing cap capscrews and secure cap.
4. Torque capscrews to 210 lb-ft
(285 N
폷
m) using torque wrench J 24407 or
equivalent. The Plastigage strip will be
crushed between the bearing insert (3) and
the crankshaft journal (4).
Figure 6-22 — Checking Running Clearance
with Plastigage
5. Remove capscrews and cap, and check the
bearing running clearance.
6. Check width of the Plastigage using a
Plastigage width chart. After measuring
width, remove Plastigage from bearing.
7. If clearance is not within specification,
correct as required. Be sure to use the
correct size bearing.
8. If clearance is less than specified, also
check behind bearing for dirt, chips or burrs
which would prevent the bearing from
seating properly.
9. Reposition cap on journal. Lubricate
capscrews with clean EO-L specification
engine oil. Lubricate and install the bearing
cap buttress capscrews as required, and
leave finger tight. Install the bearing cap
capscrews and torque to 210 lb-ft (285 N
폷
m)
using torque wrench J 24407 or equivalent.
Refer to Figure 6-23.
There are two buttress capscrew dimensions:
앫
LH side 2, 3, 5, 6; RH side 5, 6 (6 each) are
80 mm long (1)
앫
RH side FRT 2 and 3, engine bulkhead
(2 each) are 110 mm long (2)
1. Main bearing cap
2. Plastigage
3. Bearing insert
4. Crankshaft journal
200339a
1
2
3
4
5-101.bk Page 22 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...