Camshaft

Section 303-01 · In-vehicle repair · revised 06/12/2006

Removal

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section 100-02.

2. CAUTION: At no time, when the timing chains are removed and the cylinder heads are installed, may the crankshaft or camshaft be rotated. Severe piston and valve damage will occur.

   Remove the camshaft roller followers. For additional information, refer to Camshaft Roller Follower in this section.
3. Remove the timing chain. For additional information, refer to Timing Drive Components in this section.
4. Remove the bolt and the camshaft sprocket and spacer.
5. Remove the 13 camshaft bearing cap bolts.
6. Remove the camshaft bearing cap ladders.
7. Remove the camshaft from the cylinder head.

Installation

1. Lubricate the camshaft journals with clean engine oil.

   

2. Install the camshaft onto the cylinder head.
3. Lubricate the camshaft bearing cap ladders with clean engine oil.
4. Install the camshaft bearing caps and loosely install the bolts.
5. Tighten the bolts in the sequence shown.
   • Tighten to 10 Nm (89 lb-in).

   

6. Install the camshaft sprocket and bolt. Tighten the bolt in 2 stages.
   • Stage 1: Tighten to 40 Nm (30 lb-ft).
   • Stage 2: Tighten an additional 90 degrees (1/4 turn).
7. Install the timing chains. For additional information, refer to Timing Drive Components in this section.
8. Install the roller followers. For additional information, refer to Camshaft Roller Follower in this section.