TESTING AND ADJUSTING
OIL PRESSURE IS HIGH
Too Much Clearance at Engine Bearings or Open,
Broken or Disconnected Oil Line or
Oil pressure will be high if the bypass valve for the oil
Passage in Lubrication System
pump can not move from the closed
Components that are worn and have too much
bearing clearance can cause oil pressure to be low. Low
TOO MUCH COMPONENT WEAR
oil pressure can also be caused by an oil line or oil
passage that is open, broken, or disconnected.
When some components of the engine show bearing
wear in a short time, the cause can be a restriction in an
oil passage. A broken oil passage can also be the cause.
Look for a restriction in the oil passages of the oil
If the gauge for oil pressure shows the correct oil
pressure, but a component is worn because it is not
getting enough lubrication, look at the passage for oil
If the oil cooler has a restriction the oil temperature
supply to that component. A restriction in a supply
will be higher than normal when the engine is running.
passage will not let enough lubrication get to a component
The oil pressure of the engine will become low if the oil
and this will cause early wear.
cooler has a restriction