DETROIT DIESEL 53
Trouble Shooting (Engine) 15.2
Chart 7
LOW OIL PRESSURE
-------------------------------- -------------------------------- SUGGESTED REMEDY -------------------------------- ------------------------------
1. Check the oil and bring it to the proper level on the dipstick or correct the installation angle.
2. Consult the Lubricating Oil Specifications in Section 13.3 for the recommended grade and viscosity of oil.
Check for fuel leaks at the injector nut seal ring and fuel pipe connections. Leaks at these points will cause lubricating
oil dilution.
3. A plugged oil cooler is indicated by excessively high lubricating oil temperature. Remove and clean the oil cooler
core.
4. Remove the by-pass valve and clean the valve and valve seat and inspect the valve spring. Replace defective
parts.
5. Remove the pressure regulator valve and clean the valve and valve seat and inspect the valve spring. Replace
defective parts.
6. Change the bearings. Consult the Lubricating Oil Specifications in Section 13.3 for the proper grade and viscosity of
oil. Change the oil filters.
7. Replace missing plugs.
8. Check the oil pressure with a reliable gage and replace the gage if found faulty.
9. Remove and clean the gage line; replace it, if necessary.
10. Remove and clean the gage orifice.
11. Repair or replace defective electrical equipment.
12. Remove and clean the oil pan and oil intake screen. Consult the Lubricating Oil Specifications in Section 13.3 for
the proper grade and viscosity of oil. Change the oil filters.
13. Remove and inspect the valve, valve bore and spring. Replace faulty parts.
14. Disassemble the piping and install new gaskets.
15. Remove the pump. Clean and replace defective parts.
16. Remove the flange and replace the gasket.
November, 1973 SEC. 15.2
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