CAMSHAFT : Inspection: Notes

INSPECTION OF CAMSHAFT SPROCKET (EXH) OIL GROOVE

1. Check engine oil level and adjust oil level as necessary. Refer to Inspection .
2. Remove the exhaust valve timing intermediate lock control solenoid valve, exhaust valve timing control solenoid valve. Refer to SOLENOID VALVE : Removal & Installation .
3. Perform the following procedure to prevent the engine from being unintentionally started while checking.
   1. Release fuel pressure. Refer to Work Procedure .
   2. Remove the fuel pump fuse from IPDM E/R to avoid fuel injection during measurement.
4. Crank engine, and then make sure that engine oil comes out of the valve timing control holes (A). End cranking after checking.

   Courtesy of NISSAN NORTH AMERICA, INC.

   WARNING: Do not touch rotating parts (drive belt, crankshaft pulley, etc.).
   CAUTION:

   • Engine oil may squirt from exhaust valve timing intermediate lock control solenoid valve and exhaust valve timing control solenoid valve installation holes during cranking. Use a shop cloth to prevent engine oil from splashing on engine components and vehicle.
   • Do not allow engine oil to get on rubber components such as drive belts or engine mount insulators. Immediately wipe off any splashed engine oil.
5. If engine oil does not come out from valve timing control holes (A), diagnose problem in lubrication circuit such as dirty oil groove between oil strainer and exhaust valve timing intermediate lock control solenoid valve or exhaust valve timing control solenoid valve. Refer to System Description .
   1. Remove components between exhaust valve timing intermediate lock control solenoid valve or exhaust valve timing control solenoid valve and camshaft sprocket (EXH) (if necessary) and then check each oil groove for clogging.
   2. Clean oil groove if necessary. Refer to System Description .
6. After inspection, install the remaining components in the reverse order of removal.