Lisle Corporation

Combustion Leak Detector

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75500 Back

Combustion Leak Detector

Quickly Pinpoints Combustion Leaks.


Checks for combustion leaks caused by bad head gaskets, cracked blocks, and cracked or warped heads. Fluid changes from blue to yellow when exposed to combustion gases from the radiator. Connect the hose to any vehicle vacuum line. Or, on tools made after June 2002, use the adapter with no cross hole with a hand vacuum pump. Place tapered end of tool into radiator opening. With the engine running, the vehicle vacuum or the vacuum pump draws vapors through the indicating fluid for testing.

Patent: 6,806,092

Available Individually:

75630 Replacement Fluid - 16 oz.
75730 Indicating Fluid Diesel - 16 oz.
75570 Breather


Shipping Weight: 1 lb. 14 oz.
Package Dimensions: 9.25"w 12.75"h 1"d
Suggested Retail: $47.25
UPC Code: 083045755005
Harmonization Code: 3926909099

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