NOTE: If the oil filter outlet pressure is within, or exceeds
specifications at high idle and the main oil rifle pressure is
below specifications, proceed to step 6.
4. If the oil filter outlet pressure is below specification at
high idle, do the following:
• Install a pressure gauge of known accuracy on the
oil cooler filter inlet passage. At high idle, the filter
inlet pressure must not be more than 69 kPa [10
psi] greater than the oil filter outlet pressure.
NOTE: If the oil filter inlet pressure at high idle is more than
69 kPa [10 psi] greater than the oil filter outlet pressure,
replace the oil filter and measure the oil filter outlet pressure
again (step 3).
5. Install a pressure gauge of known accuracy in the
lubricating oil pump outlet. At high idle, the oil pump
outlet pressure must be 448 to 586 kPa [65 to 85 psi].
Lubricating Oil System Diagnostic Checking (2-01) Section 2 - Lubricating System
N14Page 2-16
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