Tachometer wiring question

[BillyK]

The Glendinning synchronizer is no longer operable on my boat with a flying bridge. I removed it and ran new cables. I'm replacing the sending wires and I'm going to get new tachs to run off the alternator. Do I need two wires for each tach off the alternator or will one wire feed two tachs.
Thanks,
Billy K.

 

[Sandy]

I would think just the one wire , daisy-chained from the lower station tach to the FB tach sender terminal should suffice as the tach use pulses not a resistance-based signal.

 

[BillyK]

Thanks Sandy,
Much appreciated.
Billy K.

 

[Sandy]

Caveat/disclaimer: " I'm just a boater" ( And I don't have diesels so mine don't pick up from the alternators, just from coil neg. or ECM .)

But I suggest you might read the 2 paragraphs #9 on .pdf page 13/23 (or p. 339 in the Teleflex Tech Reference publication) linked below:
http://www.jamestowndistributors.co...TMTechCat-Instruments(v4_0)Tech Reference.pdf

 

[BillyK]

That's a lot of great information.
Thanks,
Billy K.