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TM 9-2330-398-24
4-1.
ENGINE ASSEMBLY REPAIR (continued).
c.
CLEANING AND INSPECTION
NOTE
• If cylinder block is cracked, engine cannot be overhauled. Be certain to save all
salvageable components if engine cannot be overhauled.
• Use only clean, lint-free cloth for wiping engine parts. Oil and diesel fuel used during
the reassembly process must be clean. Handle all parts carefully, especially bearings
and machined surfaces.
1.
Use Magnaflux or dye-penetrating technique to detect cracks in cylinder block.
2.
Inspect all milled surfaces for pitting, burrs, and carbon or dirt buildup. Remove all burrs from bolt holes on
machined or milled surfaces.
3.
Inspect all mating surfaces. Be certain they are clean and smooth, to ensure proper gasket sealing.
WARNING
Drycleaning solvent P-D-680 is toxic and flammable. Always wear protective
goggles and gloves, and use only In a well-ventilated area. Avoid contact with
skin, eyes, and clothes, and do not breathe vapors Do not us near open flames or
excessive heat.
4.
Clean rocker arm cover gasket mating surface using drycleaning solvent and rags. Make sure mating surface is
cleaned and free of all excess gasket material. Wipe dry using rags.
5.
Flush rocker arm cover oil line with diesel fuel and clean out four drain holes.
WARNING
Particles blown by compressed air can be dangerous. Be certain to direct air
stream away from user and other personnel In the area.
6.
Dry oil inlet using clean, filtered, compressed air under pressure of approximately 15 psi (103 kPa).
7.
Visually inspect rocker arm cover for nicks or dents on gasket mating surface. Inspect cover for cracks,
particularly around the area of lifting bracket bolt hole. Inspect bolt holes for damaged or excessively worn
threads. Replace rocker arm cover if damaged.
8.
Inspect oil line for deep nicks or dents that may obstruct oil flow. Inspect line for cracks or punctures. Replace oil
line if defective.
4-13
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