200 ENGINE ASSEMBLY
Page 6-3
2. Using a wire brush or rotary wheel, remove
any rust, corrosion or other debris from the
block.
3. Clean all other block surfaces with mineral
spirits or other suitable solvent.
4. Using due care and caution, clean and dry
the block with compressed air.
INSPECTION
A complete discussion of the proper methods of
precision measuring and inspection is outside the
scope of this manual. However, every shop
should be equipped with standard gauges such
as bore gauges, dial indicators, outside and
inside micrometers, thickness gauges and
straightedges.
Check the cylinder block for indications of
cracking or coolant leakage. If any damage is
suspected, use a standard dye penetrant or
magnaflux procedure to determine if cracks exist.
A cracked engine block must be replaced and
never reused.
Refer to Figure 6-1.
Using a straightedge (PT5027 or equivalent) and
thickness gauges, check the cylinder head
mounting surfaces for flatness. The cylinder block
mounting surface, on a service block, should be
flat within 0.004 inch (0.102 mm).
Figure 6-1 — Checking Flatness of Cylinder Block Deck
If the cylinder block is determined to be
serviceable after thorough cleaning and
inspection, reassemble the engine. Use
replacement or original parts, as determined
during component inspection.
Cup Plug Replacement
REMOVAL
Refer to Figure 6-2.
1. Using a hammer and punch, drive one edge
of the plug inward. The plug should rotate
causing the opposite edge to move outward.
When the edge moves out far enough, grab
it with a pair of pliers and pull it out.
If, after several taps with a hammer, the plug
does not rotate and is being driven inward, stop
tapping. Drill a hole approximately 1/8 inch
(3.2 mm) in diameter in the center of the plug.
Insert a sheet-metal screw in the hole. Leave
enough of the screw protruding from the plug to
allow a pry bar to be inserted under the head of
the screw and pry the plug out.
2. Clean the plug hole(s) with a wire brush or
wire wheel. After cleaning, visually check the
surface for cracks. When satisfied that there
are no cracks
anywhere
in the block, replace
the plug(s).
5-101.bk Page 3 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...