VW T25 Gearbox & Transmission Parts

A Short History Of The VW Type 25 (cont.)

Early waterboxers were plagued by unreliability problems, stemming from head gasket failures. These failures were the result of a few design flaws on the engine, the alloy which VW had chosen to use for the cylinders would weaken when subjected to overheating, therefore as soon as the engines reached 90°C the metal would crack, causing coolant to leak into the oil.

Corrosion and the poor placement of some of the engines sensors was also to blame for these early failures. The waterboxer engine had come into existence due to the original air-cooled motors no longer being capable of meeting the emissions standards set by the ruling agencies in the markets where the T25 was being sold.

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