Cylinder Block, Liners, Pistons, and Rods
02
030
53
RG,RG34710,135
–19–30SEP97–1/1
Check Engine Rotation for Excessive
Tightness
1. Rotate crankshaft several revolutions to be sure engine
rotates without excessive tightness.
2. Check liners for deep scratches caused by an
improperly installed or broken piston ring.
3. Check side clearance of rods; must have slight
side-to-side movement.
RG,RG34710,136
–19–01NOV00–1/1
Measure Piston Protrusion
1. Press down on top of piston to remove oil
clearances.
2. Use JDG451 Gauge along with D17526CI (English
scale) or D17527CI (Metric scale) Dial Indicator, or
use KJD10123 Gauge to measure piston protrusion.
Place gauge on top of cylinder block so dial
indicator can be set to “zero” (0.000) with top of
block.
3. Position gauge across top of piston. While pressing
gauge downward, rotate crankshaft until piston is at
“TDC.”
4. Measure and record piston height at several
positions around top OD of piston.
5. Piston protrusion must be within the following
specification to prevent piston-to-exhaust valve
contact.
Specification
Piston (Early Engines)—
Protrusion Above Block Deck
0.229—0.787 mm
(0.009—0.031 in.)
.................................
Piston (RE505901) (Later 12.5
L Engines)—Protrusion Above
Block Deck
0.079—0.637 mm
(0.003—0.025 in.)
..............................................................
6. Repeat procedure on remaining pistons and record
measurements.
If protrusion does not meet specification, check
dimensions of piston, connecting rod, cylinder block,
crankshaft, and bearings to determine the cause.
CTM100 (06APR04)
02-030-53
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=193
Содержание 6105ADW
Страница 14: ...Contents 01 02 03 04 05 06 INDX CTM100 06APR04 ii POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 2 ...
Страница 16: ...Contents 01 CTM100 06APR04 01 2 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 2 ...
Страница 50: ...Contents 02 CTM100 06APR04 02 4 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 4 ...
Страница 302: ...Cooling System 02 070 16 CTM100 06APR04 02 070 16 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 300 ...
Страница 328: ...Air Intake and Exhaust System 02 080 26 CTM100 06APR04 02 080 26 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 326 ...
Страница 330: ...Fuel System 02 090 2 CTM100 06APR04 02 090 2 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 328 ...
Страница 334: ...Contents 03 CTM100 06APR04 03 2 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 2 ...
Страница 341: ...Base Engine Operation 03 120 7 CTM100 06APR04 03 120 7 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 339 ...
Страница 348: ...Base Engine Operation 03 120 14 CTM100 06APR04 03 120 14 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 346 ...
Страница 350: ...Contents 04 CTM100 06APR04 04 2 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 2 ...
Страница 376: ...Contents 05 CTM100 06APR04 05 2 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 2 ...
Страница 412: ...Contents 06 CTM100 06APR04 06 2 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 2 ...
Страница 444: ...Diagnostic Specifications 06 210 8 CTM100 06APR04 06 210 8 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 442 ...