Camshaft Gear/Sprocket: Service and Repair

1. Relieve fuel system pressure.
2. Disconnect battery ground cable and drain cooling system.
3. Disconnect air bypass hoses and remove intake air tube.
4. Disconnect throttle cable and remove retaining bracket.
5. Remove cylinder head valve cover.
6. Remove timing belt.

Fig. 6 Removing Camshaft Timing Belt Pulley:

7. Remove camshaft pulleys by holding camshaft with wrench then remove pulley retaining bolt.
8. Remove seal plate then camshaft seal using seal removing tool T78P-3504-N, or equivalent.
9. If removing intake camshaft, remove distributor.
10. Note cylinder number and rotation direction of each camshaft bearing cap, then remove camshaft bearing cap bolts alternatingly and gradually.
11. Remove the camshaft.
12. Reverse procedure to install noting the following:
a. Align timing marks on camshaft.

Fig. 7 Camshaft Bearing Cap Tightening Sequence:

b. Tighten bearing caps is sequence to 9-10 ft lb.
c. Install new camshaft seals using seal installation tool Nos. T90P-6256-BH and T90P-6256-AH or equivalent.