Glow plug wiring

[Hans Nepf]

Our30' Catalina-(1980) has developed a sudden loss of power to the glow plugs on our Universal 5411 engine. Glow plugs are checked and O.K. Has anyone had this problem. we are having a hard time tracing the power to the plugs. Does anyone have a source for the wiring schematic for the ignition panel and related power system wiring.

 

[John Mavrovich]

White Wire from Ignition Switch

This wire carries the voltage to the glow plugs. It passes thru a couple of connectors however. One behind the engine control panel and the other near the engine. At least this is the way my '91 C-30 is wired. Good luck.

 

[Charles Weiss]

corrosion?

Last year I had a similar problem on my M25. I turned out to be corrosion both at the wires on ignition switch and at the glow plug screw on which the wires attach. Once cleaned up it worked perfectly.