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 TM 55-1905-223-24-5
e. Remove two assembled washer screws (28) and remove oil drain bent metallic tube (29) and gasket
(30).
f. Loosen clamp (2) and remove engine air intake pipe (1) from turbocharger (3).
g. Remove thermocouple (10) from exhaust connection (11).
h. Loosen V-clamp (12) and remove exhaust piping (11) from turbocharger (3).
i. Loosen bolts (5) and nuts (7) securing air crossover hose (6), clamps (4) to turbocharger (3) and
remove air crossover hose (6).
j. Remove four sleeve nuts (13) from turbocharger mounting studs (15) and remove turbocharger (3) and
gasket (14).
k. Tape over engine air inlet (1) and exhaust (11) connections.
REPAIR
Repair of the turbocharger is by replacement of the insulating cover (17), nonmetallic hose (21), nonmetallic
hose assembly (9), thermocouple (10), bent metallic tube (29), gaskets (14 and 30), and/or turbocharger (3).
a. Clean turbocharger gasket surface (1, FIGURE 2-17) and exhaust manifold gasket surface (3) with
solvent and rag.
b. Check for cracks on turbocharger mounting flange (4 or 5). If cracks are longer than .6 inch (15 mm),
replace turbocharger (3) flange.
c. Check for cracks on turbocharger mounting flange (4 or 5) must not reach mounting holes. If cracks
reach mounting holes, replace turbocharger flange.
d. Two cracks on turbocharger mounting flange (4 or 5) cannot be closer together than .25 inch (6.4
mm). If closer, replace turbocharger flange.
e. Inspect exhaust manifold gasket surface (3) and mounting studs (2) for cracks or thread damage. If
surface is cracked, replace manifold (para. 2-39). If studs are damaged, replace studs.
REPLACEMENT
a. Remove tape covering engine air inlet (1, FIGURE 2-16) and exhaust outlet (11) to turbocharger (3).
b. Apply a coat of anti-seize compound to the threads (FIGURE 2-18) of the turbocharger mounting
studs (15, FIGURE 2-16).
c. Install turbocharger gasket (14) onto exhaust manifold. The raised bead on the gasket surface must
be toward the turbocharger (3).
2-75
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