Although the block tester is considered a cheap and simple-to-use device that offers immediate results, we still prefer using a four-gas analyzer (smog sniffer) to test the radiator for traces of ...

Does Head Gasket Sealer Work? Many car owners on a budget swear by head gasket sealers, especially in regards to vehicles using the 2.5-liter flat-four cylinder engine by Subaru.

To use the straight edge, place it on the face of the cylinder head or block, then use a feeler gauge to check any gaps between the straight edge and the surface. When checking for flatness, avoid ...