Hi all,

I've finally managed to get hold of a tacho for my '82 280e.

I just wanted to check with you all that I've got the wiring correct.

From what I can see, the 2 round pins on the back are for the tacho, 1 is marked with a + stamped in the steel next to it, this has a red wire off the back, and the othe has a green wire off the back.

So, it seems logical that the +, red wire is a switched positive, and the green wire is the signal, with the negative being picked up through the frame.

Is this correct?

Cheers Frank.

Ps, I've added some pictures below...

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IT'S NOT LEAKING OIL, IT'S SWEATING HORSE POWER!!!
http://i148.photobucket.com/albums/s...2/d7235ae7.jpg
http://www.ppcmag.co.uk/forum/viewtopic.php?f=47&t=6743&start=105
http://www.youtube.com/watch?v=AMf0sZubyfg&feature=plcp
http://www.youtube.com/watch?v=iPZy0pNgcZ0&feature=plcp