S10/T10 P/U,Blazer L4-119 1.9L (1982)
Compression Check: Specifications
The lowest reading cylinder should not be less than 8.5 psi of the highest and no cylinder reading should be less than 820-1172 kPa (119-170 psi).
Perform compression test with engine at normal operating temperature, spark plugs removed and throttle wide open.