Section XXX. REPAIR OF EXHAUST MANIFOLDS

*TM 9-2815-213-34

paragraph 2-6.

(1) Immerse the filter element in carbon

b. Assembly oil cooler. Plug oil outlet and attach

tetrachloride to trichloethylene,

or other approved

cleaning solvent.

70/100 p.s.i. air line to oil inlet.

c. Immerse unit in water and apply air pressure.

(2) Using a rubber suction cup force solvent

around and through the tubes until clean.

The slightest leak will be indicated by the appearance of

air bubbles.

d. Assemble front and rear heads to cooler.

NOTE

e. Plug either inlet or outlet connection and check

If all passages are badly clogged,

for leaks as described in steps (1) and (2) above.

circulate an oakite or alkaline solution

through the tubes.

3-160. Repair

a. Header leaks may occur where tubes protrude

(3)

After cleaning flush thoroughly with hot

through header plate or where header is soldered. The

water.

header may become cracked in service due to excessive

b. Water Side.

pressure. Resolder tubes to header as necessary.

(1) Plug oil inlet and outlet.

CAUTION

(2) Immerse oil cooler in solution of one part

Do not burn tubes or header material with torch flame.

muriatic acid, nine parts water, one pound oxalic acid,

b. Perform general repairs in accordance with

and 0.01 gallon of pyridene to each five gallons of acid.

paragraph 2-7.

(3) Remove core when foaming and bubbling

3-161. Assembly

stops. This usually takes 30 to 60 seconds.

Assemble cooler in reverse order of disassembly (para

(4) Immerse unit in a 5 percent solution sodium

3-157), and perform a leak test.

carbonate. Remove when bubbling stops and pressure

flush with clean warm water.

CAUTION

(5) Clean' inside of case thoroughly will steam

Insure element is assembled so "O"

or solvent.

marks are aligned on case and element.

3-159. Inspection

a. Perform general inspection in accordant with

Section XXX. REPAIR OF EXHAUST MANIFOLDS

paragraph 2-6.

3-162. Cleaning

3-164. Installation (right bank)

Clean manifolds in accordance with instructions in

paragraph 2-5.

Secure manifold to head with eight cap screws, spacers,

four lockplates, and four gaskets.

3-163. Inspection

Inspect manifolds in accordance with instructions in

Section XXXI. ENGINE REMOVAL FROM REBUILD STAND

with 12 cap screws and lockwashers.

3-165. General

d. Install oil cooler and four gaskets securing with

Attach lifting hooks to hoist to front and rear engine lifting

13 cap screws and lockwashers to block and cover plate.

eyes (fig. 1-1 and 1-2), and takes slack in chain.

e. Install left bank manifold and four gaskets to

3-166. Rebuild Stand Removal

cylinder head securing with eight cap screws, spacers,

a. Remove cap screws and lockwasher securing

and four lockplates.

engine stand and adapter plate to engine block.

b. Remove stand and adapter from engine. c.

Install gasket and left side cover plate to block securing

Section XXXII. ENGINE TEST AND ADJUSTMENT

reaching operating temperature.

3-167. Adjustment

(2) Always adjust injectors before crossheads and

a. Injectors, Crossheads, and Valves.

valves.

(1) Injector plungers, crossheads and valve

must be adjusted before starting engine first time at cold

setting and-again during engine test after

3-57