TM 9-6115-624-BD
6-9.
Radiator, Leaking. Radiator leaking may be detected by low coolant levels. Obvious wet areas or overheating
will indicate that the coolant level must be checked. The repair procedure used is dependent on the size of the hole(s)
causing the leak. The following procedures provide options to stop or reduce the leakage rate.
6-10.
Option 1: Repair of Small Hole.
a. Limitations.
None if leak is stopped and operating temperature does not increase
b. Personnel/time required.
1 soldier/0.25-0.5 hours
c.
Materials/tools.
Stop leak chemical
Tobacco
Pepper
Eggs
Oatmeal
Farina (cream of wheat)
Corn meal
d. Procedural Steps.
CAUTION
If radiator is hot, start engine before adding coolant.
(a) Remove radiator cap and add coolant to bring coolant to the proper level. Leave cap off.
(b) Start engine.
(c) Sprinkle or pour one of the materials listed above into the coolant.
(d) Inspect the hole for evidence of reduced or eliminated leakage.
(e) Add more material if leak has not stopped or been reduced to an acceptable limit.
(f) Leave radiator cap loose.
Record BDAR action taken. When mission is complete, as soon as practicable, repair the equipment/system using
standard maintenance procedures.
6-11.
Option 2: Repair of Radiator Leak.
a. Limitations.
None if cooling capabilities are not reduced
b. Personnel/time required.
1 soldier/1.0-4.0 hours
6-5
