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 TM 9-281 5-224-34&P
Engine Block Maintenance Instructions (Cent)
3-2. ENGINE BLOCK REPAIR (CONT).
NOTE
All eight cylinders are measured the same. Follow steps (5) through (9).
Make two cylinder bore (4) measurements (5 and 6) with cylinder bore gage in steps (6) to (9).
(5)
Measure cylinder bore (4) at position A. Measurement cannot be greater than 5.3625-in.
(6)
(136.2075 mm).
Measure cylinder bore (4) at position B. Measurement cannot be greater than 5.3390-in.
(7)
(135.6106 mm).
Measure cylinder bore (4) at position C. Measurement cannot be greater than 5.2180-in.
(8)
(132.5372 mm).
Measure cylinder bore (4) at position D. Measurement cannot be greater than 5.2180-in.
(9)
(132.5372 mm).
Replace engine block (1) if any cylinder bore (4) is beyond limits listed.
(10)
(11) Use straight edge and feeler gage
to measure flatness of engine
block (1) crosswise, between all
cylinders (7).
(12) If block (1) varies more than
0.003-in. (0.076 mm), replace
engine block (1).
(13) Using a straight edge and feeler
gage, measure flatness of engine
block contact surface (1)
lengthwise. If block (1) varies
more than 0.007-in. (O. 178 mm),
replace engine block (1).
TA357779
3-8
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