The original fuel gauge on our '72 C&C 30 MkI has finally met its end. To match a replacement with the sender, would I not just ensure the tank is filled and check the Ohms across the sending unit leads? The tank is newer than the boat, replaced by another previous owner, and so I'm pretty sure the sending unit isn't original. Any insights? Thanks!
Fuel Gauge Replacement - Ohms?
Collapse
X
-
Originally posted by mhinnc View PostThe original fuel gauge on our '72 C&C 30 MkI has finally met its end. To match a replacement with the sender, would I not just ensure the tank is filled and check the Ohms across the sending unit leads? The tank is newer than the boat, replaced by another previous owner, and so I'm pretty sure the sending unit isn't original. Any insights? Thanks!Joe Della Barba
Coquina
C&C 35 MK I
Maryland USA
-
-
Originally posted by Al Schober View PostI prefer doing some diagnostics before replacing parts.
Disconnect the lead at the sending unit. The gauge should move depending on whether the lead is contacting or not contacting the metal of the tank. That will verify that the gauge works and your wiring has connectivity.
Good point though, connect a 100 ohm resistor between the sender wire and ground and the gauge should read somewhere in the middle area. Also test the sender resistance to ground with the gauge wire off of it.Joe Della Barba
Coquina
C&C 35 MK I
Maryland USA
Comment
-
Comment