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Valve Clearance
- Remove valve cover. Rotate engine until zero degree (TDC) timing mark of timing belt cover is in line with timing mark on crankshaft pulley. See Figure
.
- Cylinder No. 1 should be at TDC on compression stroke. Remove distributor cap, and ensure rotor is pointed upward at distributor hold-down bolt and to No. 1 terminal of distributor cap. If rotor is not as described, rotate engine 360 degrees.
- Measure valve clearance between adjustment screw and valve stem using shim thickness gauge. Check intake valve clearance of cylinders No. 1 and 2 and exhaust valve clearance of cylinders No. 1 and 3. See VALVE CLEARANCE SPECIFICATIONS
table.
VALVE CLEARANCE SPECIFICATIONS
| Application |
In. (mm) |
| TBI |
| Engine Cold |
| Intake |
.005-.007 (.13-.17) |
| Exhaust |
.006-.008 (.15-.20) |
| Engine Hot |
| Intake |
.009-.011 (.23-.27) |
| Exhaust |
.010-.012 (.25-.30) |
| PFI |
| Engine Cold |
| Intake & Exhaust |
.0031-.0047 (.080-.120) |
| Engine Hot |
| Intake & Exhaust |
.0047-.0063 (.120-.160) |
- Turn crankshaft one complete revolution (360 degrees). Check intake valve clearance of cylinders No. 3 and 4 and exhaust valve clearance of cylinders No. 2 and 4.
- Adjust valves by loosening lock nut and turning adjusting screw until clearance is as specified. After adjusting clearance, tighten adjusting screw lock nut to 90-108 INCH lbs. (10-13 N.m) on Sidekick. On all models, recheck clearance.