Crankcase and Oil System. - TM-43-01560143

TM 43-0156

Step

Function

Mech

Insp

(4)

Crankcase and Oil System.

Cont.

NOTE

Allow suffient time for engine

to cool before processing

oil system.

(a)

Completely drain the crankcase.

(b)

Turn compression release to decompression (away

from engine) on each side of engine.

(c)

Remove valve covers.

(d)

Disconnect the intake hose of the electric prelube

pump from the oil line and connect to a supply of

preservative oil (9150-00-111-0209).

(e)

Switch on the prelube pump.

(f)

Pump preservative oil thoughout the entire lubri-

cation system until preservative oil is observed

coming from the camshaft bearings.

(g)

Manually rotate the engine over at least two full

revolutions while the preservative is being pumped

through the oil system.

(h)

Switch off the prelube pump.

(i)

Connect the intake hose of the electric prelube

pump back into the oil line from where it was removed.

(j)

Atomize spray the top of the engine with preservative

oil (9150-00-111- 0209). Install the valve covers.

(k)

Remove access covers to the crankcase and atomize

spray the underside of the engine with preservative

oil (9150-00-111-0209). Install covers.

(l)

Allow time for the engine to drain (approx 20

min). Completely drain the crankcase of any oil

that may have accumulated.

(m)

Prepare tag (8135-00-292-2345) indicating "OIL HAS

BEEN DRAINED FROM THE CRANKCASE. DO NOT

START UNTIL OIL HAS BEEN ADDED." Attach tag to

engine control panel.

B-2-80