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Sealing Holes in an Aluminum Engine Block

The aluminum engine block was first introduced in the 1960s in mid-sized and large cars. Their lighter weight makes them attractive to automakers. They arent, however, quite as durable as the heavier steel blocks, and over time holes may appear in the aluminum. Fortunately they can be repaired or sealed.

Instructions

1

Level the engine block.

2

Clean the engine block with soap and water.

3

Heat the engine block until it reaches 1218 degrees F.

4

Apply aluminum repair material (braising rod) to the edges of the hole, heating it with an oxy-acetylene torch, then gradually build up enough material to cover the hole completely.