What about using the Perkins tach? Ours works great....

On Fri, 14 Nov 2003 11:44:29 -0000, "Brian Runyard"
wrote:

I'm in the process of replacing the old AQ110 petrol engine (negative earth)
in my boat with a Perkins Diesel.
Is it possible to retain my original Rev Counter (signal from contact
breaker), but pickup the signal from the Alternator instead and recalibrate
the instrument (I have an accurate hand held tacho to compare it with)?

Regards,
Brian
http://homepage.ntlworld.com/brunyard.

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Larry W4CSC

"Very funny, Scotty! Now, BEAM ME MY CLOTHES! KIRK OUT!"