Inspection -706880834

TM 5-4210-233-14&P-1

5-24. EXHAUST MANIFOLD-Continued

b. Inspection.

(1) Remove all loose scale and carbon that may have accumulated on the internal walls of the exhaust

manifold. This is especially important on turbocharger engines becauseloose scale or carbon

could enter and damage the turbocharger.

(2) Examine the exhaust manifold studs for damage, and replace as necessary. Torque new studs to

25-40 lb-ft (34-54 Nm).

(3) Make sure all gasket material is removed from cylinder head and exhaust manifold mating surface.

(4) Inspect manifold for cracks, damage or warpage.

Installation.

CAUTION

Ensure manifold interior is free from scale and carbon. This will

eliminate the possibility of turbocharger damage.

(1)

Place two new gaskets (8) over studs and up against the cylinder head.

NOTE

When installing the two metal clad exhaust manifold gaskets be

sure the crimped sides of the gaskets face the cylinder head.

(2) Lift right exhaust manifold (3) into engine compartment. Position the manifold over the studs (7)

and up against the exhaust manifold gaskets (8).

NOTE

Be sure the locating pads on the exhaust manifold rest on the

cylinder block locating pads.

(3) Install the two hold-down crabs (5), three bevel washers (6),and five nuts (4) on the studs (7), and

draw the exhaust manifold up against the gaskets. Set the bevel washers in position so that outer

diameter will rest on the manifold and the crown at the center is next to the nut. Tighten the

exhaust manifold stud nuts (4) from the center of the exhaust manifold outward, alternating toward

either end. Torque the nuts to 30-35 ft lb (41-47 Nm).

(4) Install the right exhaust manifold to turbocharger pipe (1) into position, and secure using two seal

clamps (2) Do not allow exhaust piping to impose excessive loads on turbocharger. Tighten seal

clamps firmly.

(5) Tighten dipstick bracket screw.

(6) Repeat steps 1 through 4 to install left exhaust manifold.

d. Follow-on Maintenance.

(1) Install engine enclosure (see para 4-127).

(2) Connect batteries (see para 4-114).

5-164