Engine Sychronizer not working

[rinker1]

My engine sychronizer gauge is not working on my carver. It is reading dead in the middle when the engines are off. When the engines are at idle gauge is reading all the way to the port engine. As I rev the engines there is no change. All of my other gauges seem to be working okay. I have no idea where to begin. I checked the wiring on the back of the gauge and it seems to be okay. Any ideas?

 

[cmariner32]

I had the same problem with my Carver synch. My unit was a Teleflex which is the same as the dash guages. If you have the same kind as mine, there is a hockey puck sized receiving unit screwed to the backside of the dash. Wires from the engine distributor connect to it. Make sure the wires are connected tight at the receiver and to the guage. The tech support gave me details on checking the unit with a VOM but I can't recall the specifics now. If the receiver is bad, teleflex sells replacement units-about $60-$70 as I recall. I got the part number from Teleflex and George at Boatfix ordered it for me at their great discounted price. Good luck.