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 TM 55-1905-220-14-11
5-69.
ENGINE ASSEMBLY - REMOVAL AND RUN-IN - MAINTENANCE INSTRUCTIONS
(Continued).
LOCATION
ITEM
ACTION
REMARKS
ENGINE RUN-IN INSTRUCTIONS (Cont)
1. Oil pressure gage installed in one of the engine main oil galleries.
2. Oil temperature gage installed in the oil pan, or thermometer installed in the dip- stick
hole in the oil pan.
3. Adaptor for connecting a pressure gage or mercury manometer to the engine air box.
4. Water temperature gage installed in the water outlet manifold.
5. Adaptor for connecting a pressure gage or water manometer to the crankcase.
6. Adaptor for connecting a pressure gage or mercury manometer to the exhaust manifold
at the flange.
7. Adaptor for connecting a vacuum gage or water manometer to the blower inlet.
8. Adaptor for connecting a fuel pressure gage to the fuel manifold inlet passage.
(b) In some cases, gages reading in pounds per square inch are used for determining pressure
while standard characteristics are given in inches of mercury or inches of water. It is
extremely important that the scale of such a gage be of low range and finely divided if
accuracy is desired. This is especially true of a gage reading in psi, the reading of which is
to be converted to inches of water. The following conversion factors may be helpful:
Inches of water = psi x 27.7 inches
Inches of mercury = psi x 2.04 inches
5-921
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