CAMSHAFTS & VALVE GEAR
Nov 19, 2020
4 minutes
The SOHC BMW M10 fours and M30 sixes from the sixties, seventies, eighties and early nineties were part of BMW’s reputation - both for being very good when new and also for camshaft wear. That was due in part to neglect and another due to not being the best design. Though with a minor mod or two and regular attention they’ll last indefinitely.
The M10 and M30 cam is chain-driven and is lubricated by a steel tubular spray bar with four oil holes (M10) or six (M30) and these spray oil between the cam lobes with enough oil to lubricate both. The bar is secured by hollow banjo bolts
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