Pump Up the Volume

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The Bonnie has been suffering from a little wet-sumping. That’s motorcycle incontinence to the general public; with this Triumph typically when a mote of debris has been sucked up from the scavenger into the oil pump. Itself a pair of pistons driven from an eccentric pin off the inlet camshaft.

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Sprung ball bearings prevent backflow but can be jammed open with said unwanted grunge. Access and disassembly is straight forward under timing cover.

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Buttoned-up, kicked over and timing sweetened. Took the old gal around the block and all seems good.

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