Installation

1. Check camshaft journals for wear. If journals are badly worn, replace camshaft.
2. Install camshaft thrust case and thrust plate to camshaft end and firmly tighten attaching bolt. Check camshaft endplay. Endplay should be .002-.008 inch. If endplay exceeds specified value, replace thrust case and recheck endplay.
3. If endplay is still not within specification, check rear end of camshaft journal for wear. If badly worn, replace camshaft.
4. Lubricate camshaft journal and thrust portions of camshaft with clean engine oil.
5. Insert camshaft into cylinder head and rotate camshaft to position noted during disassembly (TDC on compression stroke for No. 1 cylinder).
6. Insert camshaft thrust case with the threaded hole facing upward. Align threaded hole with bolt hole in the cylinder head. Install and firmly tighten attaching bolt.
7. Install rear gasket and cover. Firmly tighten bolts.
8. Install camshaft oil seal. Lubricate external surface of seal completely with engine oil.
9. Ensure seal is completely seated.

Fig. 9 Camshaft timing marks. 1500cc engine:

10. Install camshaft sprocket and timing belt, and ensure timing marks are aligned, Fig. 9. Torque bolt to 47-54 ft. lbs.
11. Install rocker arm and shaft assembly.
12. Temporarily set valve clearances to specifications with the engine cold.
13. Install gasket in rocker cover groove, then temporarily install rocker cover.
14. Start and operate engine at idle speed until normal operating temperature is reached and adjust valve clearances. With engine hot, adjust jet valve clearance to specifications.
15. Install rocker cover.
16. Reverse remaining procedure to complete installation.