Sealing the Deal
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Two-piece main seals are commonly used in racing. They fit in a groovearound the main journal at the back of the block. Seals designed forwet-sump engines have a directional lip, which should always pointtoward the inside of the engine. Get it backwards and you will have oilweeping out. Also, put the seal in so that one side extends beyond theparting line. Do the same thing with the other half of the seal in thecap. This way the parting lines between the two halves of the seal donot line up with the line between the cap and block, which helps reduceleaks. Lightly lubricate the lip of the seal only. View Related Article
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