ENGINE UNIT INSPECTION

PROCEDURE

1. INSPECT CAMSHAFT

   1. 

      Inspect the camshaft for runout.

      1. Place the camshaft on V-blocks.

      2. Using a dial indicator, measure the runout at the center journal.

         Maximum Runout

         0.008 mm (0.000314 in.)

         If the runout is more than the maximum, replace the camshaft.

   2. 

      Inspect the cam lobes.

      1. Using a micrometer, measure the cam lobe height.

         Standard Cam Lobe Height

         41.6 mm (1.64 in.)

         If the cam lobe height is less than the standard value, replace the camshaft.

   3. 

      Inspect the camshaft journals.

      1. Using a micrometer, measure the journal diameter.

         Standard Journal Diameter

         23.959 to 23.98 mm (0.943 to 0.944 in.)

         If the journal diameter is not as specified, replace the camshaft.

   4. 

      *a	Cam Lift Height

      Inspect the cam lifts.

      1. Using a vernier caliper, measure the cam lift height.

         Standard Cam Lift Height

         8.6 mm (0.339 in.)

         If the cam lift height is less than the standard value, replace the camshaft.

2. INSPECT NO. 2 CAMSHAFT

   1. 

      Inspect the No. 2 camshaft for runout.

      1. Place the No. 2 camshaft on V-blocks.

      2. Using a dial indicator, measure the runout at the center journal.

         Maximum Runout

         0.008 mm (0.000314 in.)

         If the runout is more than the maximum, replace the No. 2 camshaft.

   2. 

      Inspect the cam lobes.

      1. Using a micrometer, measure the cam lobe height.

         Standard Cam Lobe Height

         51.5 mm (2.03 in.)

         If the cam lobe height is less than the standard value, replace the No. 2 camshaft.

   3. 

      Inspect the camshaft journals.

      1. Using a micrometer, measure the journal diameter.

         Standard Journal Diameter

         23.959 to 23.98 mm (0.943 to 0.944 in.)

         If the journal diameter is not as specified, replace the No. 2 camshaft.

   4. 

      *a	Cam Lift Height

      Inspect the cam lifts.

      1. Using a vernier caliper, measure the cam lift height.

         Standard Cam Lift Height

         5.15 mm (0.203 in.)

         If the cam lift height is less than the standard value, replace the No. 2 camshaft.

3. INSPECT OIL PUMP CHAIN

   

   1. Visually check the oil pump chain for wear or cracks.

      Note:

      If the oil pump chain is not normal, replace the oil pump chain and check the oil pump drive gear side too.