Hi,
I'd like to install a tach in my '73 L406D Mercedes camper (it has an OM616 engine, the same as in my '82 240D). The speedo is erratic on it and I can't seem to correct the problem, so thought it a good idea to install a tach.
Any suggestions on the best approach to use?
- install a used tach/sender from a diesel MB sedan?
- install aftermarket diesel tach/sender? (optical, magnetic?)
- how to best go about it?
Thanks a lot for your help. Season's Greetings to all!
--Robert (Ottawa, Canada)

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1982 240D 205,000miles+
1987 Land-Rover 110 diesel 50,000miles+