Camshaft: Service and Repair

Camshafts





Special Tool(s)





Material

Removal

NOTICE: Since the engine is not free-wheeling, timing procedures must be followed exactly or piston and valve damage can occur.

1. Check the valve clearance.

2. Remove the timing belt.





3. NOTE: Hold the camshafts by the hexagon with an open ended wrench to stop them from rotating.

Remove the camshaft pulleys.





3. Remove the oil feed flange.
^ Discard the camshaft oil seals.
^ Discard the oil feed flange oil seal.





4. CAUTION: Loosen the camshaft bearing caps in the sequence shown.

NOTE: Working in several stages, evenly loosen each bolt two turns at a time in the indicated sequence and remove the bolts.

NOTE: Mark the position of the camshaft bearing caps prior to removal and reinstall the camshaft bearing caps in the same position after installation of the camshaft.

Remove the camshafts.

Installation





NOTE: Since the engine is not free-wheeling, timing procedures must be followed exactly or piston and valve damage can occur.

NOTE: The camshaft must be held stationary with an open-ended wrench or a suitable pair of locking pliers. Do not use the alignment tool to hold the camshaft in position or damage to the camshaft may occur.

1. NOTE: Working in several stages, install the camshaft bearing caps in the indicated sequence, tighten the bolts evenly one half turn at a time.

Install the camshafts.
^ Tighten the bolts in the sequence shown.





2. NOTE: Install a new oil feed flange seal.

Apply sealant to the marked areas on the oil feed flange.





3. Install the oil feed flange.





4. Using the special tool, install the exhaust camshaft oil seal.
^ Lubricate the camshaft and oil seal lip with clean engine oil.

5. Install the intake camshaft oil seal.





6. Install the camshaft pulleys.

7. NOTE: Do not tighten the camshaft pulley retaining bolts at this stage.

Install the timing belt.