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 TM 55-1905-220-14-6
3-164.1. CYLINDER HEAD - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
ASSEMBLY
NOTE
If a service replacement cylinder head is to be installed, it
must be thoroughly cleaned of all rust preventive compound,
particularly inside the integral fuel manifolds, before installing
the plugs. A simple method of removing the rust preventive
compound is to immerse the head in solvent, oleum or fuel
oil. Then scrub the head and go thru all of the openings with
a soft bristle brush. A suitable brush for cleaning the various
passages in the head can be made by attaching a 1/8 inch
(.317 cm) diameter brass rod to a brush. After cleaning, dry
the cylinder head with compressed air.
CAUTION
Apply a small amount of "dual purpose" sealer to the threads
of the plugs only. Work the sealant into the threads and wipe
the excess with a clean lint-free cloth so that sealant will not
be washed into the fuel and oil passages.
24.
Cylinder
a.
Pipe
Install one plug.
Tighten to 18 -
head
plug
22 lb-ft,
(19)
(24.4-29.8
Nm).
b.
Pipe
Install five plugs.
Tighten to 14 -
plugs
16 lb-ft,
(18)
(18.9-21.7
Nm).
c.
Pipe
Install two plugs.
Tighten to
plugs
flush or 1/8
(15)
inch recessed.
d.
Pipe
Install seven plugs.
Tighten to 14 -
plugs
16 lb-ft,
(12)
18.9-21.7
Nm).
3-2708
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