TM-9-2350-358-BD
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A6
TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT SUPPORT MAINTENANCE
MARCH 1994
TM-9-2350-358-BD - Page 109 of 343
TM 9-2350-358-BD
4-13.
INTAKE MANIFOLD OR OTHER CASTINGS OR CONTAINERS DAMAGED
General Information:
Intake manifolds are difficult to repair.
Autobody fillers, epoxys or gasket sealers can seal cracks.
Holes will require
welding because of irregular surfaces.
Tape will provide a temporary seal on unpressurized air intake portions but has
minimal value for pressurized systems without metal or wire re-enforcement.
Epoxy kits will make an almost permanent
repair, if time is available for curing.
Follow the individual kit directions.
SECTION IV.
EXHAUST SYSTEM
4-14.
GENERAL
The engine exhaust system consists of the exhaust manifold, ducts and pipes to route the gases to the muffler and out of
the vehicle.
Turbocharged engines have the exhaust gases routed through the turbocharger to drive the vanes.
Damage
to the ducts or pipes, not including the ducting for the turbocharger drive circuit, are inconvenient but the vehicle can still
be operated.
Care must be taken, however, to keep carbon monoxide out of the crew compartments.
Turbocharger drive
circuits must be repaired or engine performance will be degraded.
4-15.
EXHAUST MANIFOLDS DAMAGED
General Information:
Damaged manifolds are indicated by loud noises.
Any damage to the exhaust manifolds upstream of the turbocharger will
degrade vehicle operation.
Continued engine operation may set the fuel lines on fire.
Limitations:
None
Personnel/Time Required:
•
1 soldier
•
0.5 hour
Materials/Tools:
•
Suitable fire resistant material (scavenge from available source)
•
Clamps (scavenge from available source)
Other Options:
•
Weld or braze the manifold.
.
•
Use epoxy, type sealer (for small cracks) or adhesive epoxy (item 2, Appendix C).
Procedural Steps:
1.
Gain access to the damaged manifold.
WARNING
Adhesives, solvents, and sealing compounds can burn easily, can give off
harmful vapors, and are harmful to skin and clothing.
To avoid Injury or death,
keep away from open fire and use in well-ventilated area.
If adhesive, solvent,
or sealing compound gets on skin or clothing, wash immediately with soap and
water.
4-17
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