The tester checks the amount of leakage in an engine cylinder and helps determine the source. It is best used when comparing a suspect cylinder with a known good cylinder in the same engine. Ideal for testing in trucks and modern cars, where space is limited.

Equipped with a 2-1/2" inlet pressure gauge for proper leak test adjustment and accurate results. Designed to detect a variety of common engine faults, such as:

• Worn piston rings
• Worn valves
• Cracks in the cylinder head
• Blown head gaskets

The dual leak gauge shows the cylinder leakage percentage and cylinder pressure. Suitable for use on any gasoline engine with 10, 12 or 14 mm spark plugs.