Valve Clearance: Excel
- Ensure head bolts are properly tightened before adjusting valves. Ensure engine is at normal operating temperature. Rotate crankshaft clockwise to position cylinder No. 1 on TDC of compression stroke.
- Adjust intake valves on cylinders No. 1 and 2, and exhaust valves on cylinders No. 1 and 3. Rotate crankshaft clockwise 360 degrees to position cylinders No. 4 on TDC of compression stroke.
- Adjust intake valves on cylinders No. 3 and 4, and exhaust valves on cylinders No. 2 and 4. See VALVE CLEARANCE SPECIFICATIONS
table.
VALVE CLEARANCE SPECIFICATIONS
| Application |
In. (mm) |
| Hot Engine |
| Intake |
.006 (.15) |
| Exhaust |
.010 (.25) |
| Cold Engine |
| Intake |
.003 (.07) |
| Exhaust |
.007 (.17) |