K Series sump bolt and washer

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K Series sump bolt and washer

Just noticed I am missing a sump bolt, not leaking luckily but must have worked loose and dropped out.

Does anybody know what the size/ spec of these are including the washer and also where I might obtain one from? It is a wet sump if that makes any difference.

Many thanks

revilla
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M8 12.9 high tensile Capheads with square section spring washers. Most of them are either 20mm or 25mm - I've seen a lot fitted with 20s but I generally fit 25s when rebuilding. One at the front is longer (from memory 35mm) and two at the back are 65mm. Two into the sump from the bellhousing I think are 65mm also.

SV VVC 170 - 170.4 bhp @ 7100 rpm - 142.4 ft.lb. @ 4900 rpm

Jonathan Kay
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Many thanks all, new bolt and washer ordered, arrived and fitted. Threads were fine. Not sure why it was missing.