FrankenRat, Part III
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This is the layout of a typical Gen V or Gen VI hydraulic-roller–cam lifter valley. The cast factory retainers fit over the lifter body and align the lifter with the camshaft. The stamped-tin spider applies sufficient load on the retainers to prevent them from sliding off the lifters. If the engine suffers severe valve float, the lifters can actually push the spider up and allow the retainers to slip off. When that happens, you’re looking at major camshaft carnage. View Related Article
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