Engine Compression
Check compression pressure with engine at normal operating temperature. Remove all spark plugs. Disconnect distributor. Hold throttle valve wide open and operate engine at cranking speed. Compare reading to specifications. See COMPRESSION SPECIFICATIONS table.
COMPRESSION SPECIFICATIONS
| Application | Specification psi (kg/cm2 ) |
|---|---|
| Pickup | 171 (12.0) |
| Minimum Compression Pressure | 142 (10.0) |
| Maximum Variation Between Cylinders | 14 (1.0) |