TM 5-5420-226-20-2
THERMOSTATIC ENGINE OIL COOLER VALVE ASSEMBLY (LEFT AND RIGHT)
REPLACEMENT (Sheet 3 of 4)
TEST:
Using ruler, measure overall length of valve
1.
(A) at room temperature.
Write down overall length of valve (A).
2.
Using wire (B), wrap one end tightly around
3.
threads of valve (A).
Place valve (A) in water (C) just so it is covered. Let free end of wire (B) hang over edge
4.
of container.
Slowly increase temperature of water.
5.
Using free end of wire (B), take valve out of water when water begins to boil.
6.
Using ruler, immediately measure overall length of valve (A).
7.
Write down overall length of valve (A).
8.
Compare measurements written down when cool to the touch and at heated temperatures.
9.
NOTE
After heating, valve length must have increased by
1/4 inch minimum. If valve length increased less
than 1/4 inch, throw valve away. Obtain new valve
and repeat test. If new valve passes test, install it.
TA107487
Go on to Sheet 4
