TM 5-4310-379-14
(15)
If leaks were present around injector tubes (30), replace them as follows:
(a)
Using injector tube service kit, remove injector tube (30) and seal (31).
WARNING
Dry cleaning solvent PD-680 used to clean parts is potentially dangerous to personnel and property. Avoid
repeated and prolonged skin contact. Do not use near open flame or excessive heat. Flash point of
solvent is 100-138°F (38-60°C).
(b)
Clean out injector tube hole and dry thoroughly.
(c)
Inspect injector tube hole and replace head if cracks are present.
(d)
Lubricate seal (31) with engine oil and install in counter bore in cylinder head (17).
(e)
Using installers from injector tube service kit, install cylinder injector tube (30) in cylinder head (17).
(f)
Using upsetting die from injector tube service kit, flare bottom end of injector tube. Apply 30 Ib-ft (41 Nm)
of torque to upsetting die.
(g)
Using reamer from injector tube service set, ream injector tube (30) for injector nut and spray tip.
(h)
Using pilot cutting tool from injector tube service set, remove excess stock from injector tube (30) until it is
from .000-.005 in. (.000-.013 cm) below the finished surface of the cylinder head (17).
(i)
Using reamer from injector tube service set, ream the bevel seat until gage is flush .014 in. (.034 cm)
from fire deck of cylinder head (17).
WARNING
Dry cleaning solvent PD-80 used to clean parts is potentially dangerous to personnel and property. Avoid
repeated and prolonged skin contact. Do not use near open flame or excessive heat. Flash point of
solvent is 100-138°F (38-60°C).
(j)
Clean inside of injector tube (30) with dry cleaning solvent and dry thoroughly.
(k)
Inspect valve seats and valve guides (para. 5-18) and replace damage items.
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