Innovative use of a two-sided timing belt that doubles as an oil pump forms the heart of a simplified lubrication system for overhead cam engines developed in by Diamont Ltd., a small British design consultant. Reduced parts requirements for production economies is cited as one advantage. Another is lower cooling needs, because the high-pressure oil could flow through cylinder coolant jackets as well as drilled galleries. This would speed warm-up, with resultant benefits in cold-start ...

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