Camshaft

Inspection

NOTE:
•   Do not rotate the camshaft during inspection.
•   Remove the rocker arms and rocker shafts.

1. Put the camshaft and the cam holders on the cylinder head, then tighten the bolts to the specified torque.

Specified torque:
8 mm bolts: 22 N.m (2.2 kg-m, 16 lb-ft) 6 mm bolts: 12 N.m (1.2 kg-m, 9 Ib-ft)
D15137,   D15138 engine:


2. Seat the camshaft by pushing it toward the rear of the cylinder head.
3. Zero the dial indicator against the end of the camshaft. Push the camshaft back and forth, and read the end play.

Camshaft End Play:
Standard (New): 0.05-0.15 mm
(0.002-0.006 in) Service Limit:   0.5 mm (0.02 in)

4. Remove the bolts, then remove the cam holders from the cylinder head. - Lift camshaft out of cylinder head, wipe clean, then inspect lift ramps. Replace camshaft if lobes are pitted, scored, or excessively worn.
- Clean the camshaft bearing surfaces in the cylinder head, then set camshaft back in place. - Insert plastigage strip across each journal.

5. Install the cam holders and tighten the bolts to the specified torque.