See Figure 1
Only the 3.3L engines have removable camshaft bearings. On the 3.5L engines, the camshafts rest in camshaft journals which are machined in the cylinder head. If the camshaft journal surfaces on these heads are damaged in any way, the cylinder heads will either have to be machined by a professional automotive machine shop or will have to be replaced with a new cylinder head.
REMOVAL & INSTALLATION
This procedure is recommended with the engine removed from the vehicle and completely disassembled before removing the camshaft bearings. If the engine is not completely disassembled, there is a risk of a camshaft bearing falling into the oil pan, necessitating the removal of the oil pan or other related parts. It is possible, however, to remove the camshaft bearings with the piston and crankshaft assemblies still in the engine.
To replace the camshaft bearings with new ones, it will be necessary to have Tool C-3132-A or a similar camshaft bearing removal and installation tool.
- The camshaft, cylinder heads, intake manifold, oil pan and exhaust manifolds must be removed before this procedure can be accomplished. It is, however, recommended that the entire engine be removed from the vehicle, then disassembled.
Drive out the rear cam bearing core hole plug as follows: