Inspect rocker arms for damage. Inspect camshaft for damage. Measure camshaft end play, journal diameter, and lobe height. Replace camshaft if it is not within specification. See CAMSHAFT table (DOHC) under ENGINE SPECIFICATIONS.
Scheme 20
- Lubricate components with engine oil. Install lash adjusters and rocker arms. Bring No. 1 cylinder to TDC. Install intake and exhaust camshafts into correct locations. Intake camshaft is marked with a "V", and exhaust camshaft is marked with a "C" on hexagon section. Position camshaft dowels as shown. (Scheme 20) NOTE: If cylinder head is off vehicle, support cylinder head at least.4" (10 mm) above work surface to prevent valve damage while installing camshaft bearing caps.
- Install camshaft bearing caps in sequence: No. 3, No. 4, and No. 2. Install bearing caps with front mark arrow facing the same direction as similar mark on cylinder head beside bearing journal. Note bearing cap number and identification mark ("I" for intake camshaft and "E" for exhaust). (Scheme 20)
- Install front and rear bearing caps. Tighten bearing cap bolts to specification. See «TORQUE SPECIFICATIONS TABLE»(ref-26423-S23399333042001011500000) at the end of this article. Lubricate camshaft oil seal area with engine oil. Using Seal Driver (MD998761), install camshaft oil seal. Using Circular Packing Installer (MD998761), install packing.
- Install crankshaft angle sensor adapter. To complete installation, reverse removal procedure. Tighten bolts to specification. See «TORQUE SPECIFICATIONS TABLE»(ref-26423-S23399333042001011500000) at the end of this article.