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200 ENGINE ASSEMBLY
Page 6-25
Do not force the piston. This indicates an
incorrectly aligned ring. Remove piston, correct
the problem, and reinstall.
Before pushing piston all the way down in the
sleeve, check to see if piston cooling nozzle is
aligned with the nozzle clearance notch provided
in the lower end of the piston skirt. If it is not
aligned, damage to piston or spray nozzle may
result.
13. Align rod with the journal and continue
pushing piston into sleeve while guiding rod
end (to clear piston cooling nozzle), until rod
is in position on the crankshaft journal.
14. Ensure that the correct mate to the upper
rod bearing and alignment sleeves, if
applicable, are positioned in the rod cap.
Perform a running clearance check at this
connecting rod journal before installing the
next piston in Step 15.
Perform running clearance check after installing
each piston. Damage to engine may result if
clearance is not within specification.
15. After performing running clearance check,
repeat above installation procedures to
install the No. 6 piston.
16. Rotate crankshaft so that the journals for the
No. 2 and No. 5 cylinders are at bottom dead
center. Follow above installation procedures
to install the No. 2 and No. 5 pistons. Repeat
procedures to install the No. 3 and No. 4
pistons.
CHECKING RUNNING CLEARANCE
1. Place a section of Plastigage on the cap
bearing and assemble cap to rod.
2. Apply a light coat of oil on threads of the rod
cap capscrews and secure cap.
3. Torque capscrews to 150 lb-ft
(203 N
폷
m) using torque wrench J 24407 or
equivalent.
4. Remove capscrews and cap, and check the
bearing running clearance.
5. Using a Plastigage width chart, measure
width of the Plastigage and remove it from
bearing.
6. If clearance is not within specification,
correct as required. Make sure to use the
correct size bearing.
7. If clearance is less than specified, also
check behind bearing for dirt, chips or burrs
which would prevent the bearing from
seating properly.
8. Reposition cap on journal. Lubricate new
capscrews with clean engine oil, install the
capscrews and torque to 150 lb-ft
(203 N
폷
m) using torque wrench J 24407 or
equivalent.
If cap and rod are not properly aligned, bearing
and rod damage may result.
5-101.bk Page 25 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...