TM 5-3805-280-24-2
Lubrication System
REMOVE, INSPECT, AND INSTALL OIL
20
14
BYPASS VALVE
1. Remove timing gear cover and front plate as described
in Group 16.
2. Remove oil bypass valve and spring.
3. Inspect valve and spring for damage. Replace parts if
necessary.
4. Check bypass valve spring free length and
compression strength using D01168AA Spring
Compression Tester. Replace parts if not within
specification.
Oil Bypass Valve Springs--Specification
Free Length ..................................................................... 51 mm (2.00 in.)
Spring Load at 29 mm (1.14 in.) ................................. 87.8 N (20 lb-force)
Compressed Length
5. Install oil bypass valve and spring in cylinder block.
6. Install front plate and timing gear cover as described
earlier in Group 16.
RG,20,DT7530 1917NOV971/1
REMOVE AND INSTALL OIL PRESSURE
REGULATING VALVE AND SEAT
1. Remove oil pressure regulating valve plug from timing
gear cover.
Continued on next page
RG,20,DT7529 1917NOV971/5
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