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 TM 55-1905-221-14-4
6-29. CYLINDER BLOCK - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION/ITEM
ACTION
REMARKS
CLEANING (Cont)
WARNING
Wear protective eye goggles when using compressed air.
(4) Dry the cylinder block
with compressed air.
(5) Make certain that all
water passages, oil
galleries and air box
drain openings have
been thoroughly
cleaned.
NOTE
The above cleaning procedure may be used on all ordinary cast iron and steel
parts of the engine. Mention will be made of special cleaning procedures
whenever necessary.
(6) After the block has
been cleaned and
dried, coat the
threads of the plugs
with sealant and,
using new gaskets,
reinstall the core
hole plugs. Tighten
the 1-3/4 inch-16
plugs to 150 - 180
lb-ft (203.4 - 244.0
Nm) torque and the
2-1/2 inch-16 plugs
to 230 - 270 lb-ft
(311.8 - 366.1 Nm)
6-521
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