Nissan 100NX N14 silhouetteN14

Oil Pump (Cont'd) / Oil Pressure Relief Valve / Oil Jet (For piston)

LC-34prose procedure

Oil pressure relief valve inspection differs between SR20DE (single valve, replace bracket assembly if damaged) and SR20DET (two valves, individually replaceable).

Continued from LC-33

Oil Pump (Cont'd)

  1. 4
    Check regulator valve to oil pump cover clearance.
    Two-part line drawing of oil pump cover and regulator valve showing the clearance check between regulator valve (callout 6) and oil pump cover. Lower diagram labels points C, D and 6 (E) along the regulator valve.
    SLC451A
Clearance (6)Regulator valve to oil pump cover
0.040 - 0.097mm (0.0016 - 0.0038 in)
If it exceeds the limit, replace oil pump cover.

OIL PRESSURE RELIEF VALVE INSPECTION

(SR20DE)

Inspect oil pressure relief valve for movement, cracks and breaks. If damaged, replace oil filter bracket assembly.

(SR20DET)

Inspect oil pressure relief valves for movement, cracks and breaks by pushing the ball. If replacement is necessary, remove valve by prying it out with a suitable tool. Install a new valve in place by tapping it.

Oil Jet (For piston)

INSPECTION

Oil Jet INSPECTION

  1. 1
    Blow through outlet of oil jet and make sure that air comes out of inlet.
    Cross-section line drawing of an oil jet for the piston showing the cut-off valve and inlet.
    SLC015
  2. 2
    Push cut-off valve of oil jet bolt with a clean resin or brass rod and make sure that cut-off valve moves smoothly with proper repulsion.
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