Two tach's and syncro question

[Nova II 260]

Engines: mercruiser 260's
The port engine tach reads about twice the rpm compared to the stbd engine. while they both sound to be running at equal rpm and the trottles are equal. The syncro meter also reads "0".
If my port tach was set at 4 instead of 8 (i haven't check it yet) that would explain the difference in rpm. BUT..
My question is: Where does the syncro guage get its input from?javascript:;
???
Thanks
Eric H

 

[crawdadric]

Re: Two tach's and syncro question

Nova II 260,
Check out http://www.teleflexmarine.com/cgi-bin/frameset2.cgi?site=gauges&type=us&link2=1047

This is the Teleflex web site. If this link does not work google Teleflex. Select "Marine" then "North America" and in the Gauge section look at the troubleshooting link. Click on Engine Synchronizer. It has a wiring diagram that shows how it is hooked up.

 

[Nova II 260]

Re: Two tach's and syncro question

Perfect !! THANKS Crawdadric
This forum is great!