how many engine revs

[paulsmith]

(I have a VOLVO MD7B engine) and in various articles about power /performance reference is made to maximum revs or a particular rpm. without a rev counter how can I tell what the rpm is, or how do I know if the engine is running at max revs or failing to reach max revs?

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[bruce]

you prob won't.

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[webcraft]

Get a strobe and paint a mark on the flywheel.

- Nick

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[gosh]

Machine Mart do a very handy rev counter for about £40

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