Camshaft & Rocker Arms: Installation
- Install rocker arms and lash adjusters. Lubricate camshafts with engine oil. Intake camshaft has a slit in the rear to drive crank angle sensor. Install camshafts with dowel pin area (for camshaft sprockets) facing toward the top, away from cylinder head.
- Bearing caps No. 2 and 5 are the same shape. All bearing caps, except No. 1 bearing cap, are numbered on top for location. All bearing caps are stamped either with an "I" for intake camshaft, or an "E" for exhaust camshaft.
- Install bearing caps in numerical order. Tighten bearing cap bolts in 2 steps to specification, using proper sequence. See TORQUE SPECIFICATIONS at end of article. See Fig 1. Ensure rocker arm is positioned on lash adjuster and valve.
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- Install Guide (MD998307) on camshaft. Coat camshaft oil seal with oil and install on guide. Place oil seal against cylinder head. Using Seal Installer (MD998306), install seal into cylinder head.
- Ensure dowel for intake camshaft sprocket faces upward (12-o'clock position) away from cylinder head. Align punch mark on crank angle sensor housing with notch in plate. See Fig 2. Install crank angle sensor on cylinder head.
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- To install remaining components, reverse removal procedure. Apply sealant to inside of semi-circular packing and cylinder head before installing. Apply sealant at valve cover gasket-to-camshaft bearing cap contact areas before installing.
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