Gas Engine Compression Testing Kit - Our engine compression testing kit tests gas engines for excess carbon and late timing.

• Tests gasoline engines   
• Tests for wear on cylinders, valves and rings for excess carbon and late timing   
• Includes 2 adapters   
• 2 1/2" diameter gauge with dual color scale (0-300 psi and 0-21 bar) and protective sleeve
• Quick Release Adapter
• Instructions included 
• Fit most Domestic and Import Auto