Complete Combustion Leak Test Kit - Includes Fluid - No More Purchases Needed A combustion leak has occurred when the fluid changes color from blue to yellow. Test for combustion leaks in seconds: Blown Head Gasket (BHG) Split heads or warped sealing surfaces of tension bolts or studs. Quality tools made in the USA for over 45 years. Packed in OEM white box.

Block Tester is used to detect the presence of exhaust gases within an engine's cooling system, typically caused by a blown head gasket or a cracked head or block. Contains enough liquid to perform 16 tests. No additional tools required. No need to tap engine vacuum source. Works with almost any liquid-cooled internal combustion engine or generator with a closed cooling system, including gasoline, diesel, propane, natural gas, and other alternative fuels. Large single chamber design increases accuracy and uses less test fluid.


Manufacturer: ‎Block Tester
Brand: ‎Block Tester
Product size: ‎25.4 x 7.62 x 12.7 cm; 453.59 g
Product model number: ‎BT-500
br>Discontinued by the manufacturer: ‎No
Product dimensions: Depth x Width x Height: 25.4 x 7.6 x 12.7 cm
Product weight: 454 g