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That is exactly where I got it from! I hope I didn't infringe on any patents. Sorry I don't have any info on the NSN. Karl

Nope. It's a Craftsman Special. But it worked for me. I got the idea from another thread on here about Deuce head gaskets. Karl

I received your PM and it's going out via UPS tomorrow. Glad I could help out. Karl

I can loan you one. PM sent. Karl

I have updated the color GP schematic attachment. The temperature sensor wiring is now correct and a couple of the wire descriptions were not properly drawn. The original schematic in the TM has 4 errors in it. Karl

Version 2 is coming soon. Karl

I paid $75 each to have mine done. That includes having new freeze plugs installed. No valve work was needed. Karl

Welcome from State College.

An interesting thread on the Deuce and coolant filters. http://www.steelsoldiers.com/deuce-modification-hot-rodding/11143-cut-open-coolant-filter-deuce.html?highlight=cut+open Karl

Sounds like relay chatter from the GP relay. Try cleaning all the connections on the GP relay, remove the GP card and clean the card edge connections. Visually check the solder connections (on the GP card) near the large transistor that is riveted to the board. Make sure they are intact and...

The diode that burned up is a 24 volt zener. It is not a relay spike suppression diode. When it goes the switching transistor usually goes as well. Karl

What is the voltage at the top post of the relay when the relay is closed (energized) and the GP's are connected? If it remains at 12 volts and the GP side drops, then the relay may be bad. If it drops to the same voltage as the GP side, then your problem is before the relay. Karl

The glow plug controller provides a ground to the Wait light to turn it on. The positive side to the light is switched with the key. If the Wait light wire between the GP controller and the light is grounded anywhere, it will turn the light on. I would trace and check the wire between the GP...

Big, The glow plug card receives 12 volts from the vehicle electrical system for power. The glow plug relay has a constant positive 12 volts applied to one side of the relay coil, the GP card simply provides a ground to the other side of the relay coil to close the contacts. The GP's are...

Welcome from State College. Karl

You would have to ask the glow plug mfg what the plugs were designed for. The monitor part is to prevent the glow plugs from being destroyed all at once by a higher than designed voltage applied to them. Allowing them to cycle gives them time to cool between voltage applications. A simple...

The GP module samples the voltage on the GP side of the relay, if the voltage is above approximately 12.5 volts the GP module will open the relay. The sample voltage drops to zero and the GP module starts the sample process again. This is why the GP relay cycles the power to the plugs on and...

Same thing happened to me. Incorrect filter. I think it is a FIL1061.

My M1009 had the same failure. It was repaired by the previous owner by removing the red wire from the rear of the fuse contact that melted. The wire was then pushed through the hole that the left side of the fuse contact was in. One end of an inline fuse holder was spliced to the red wire...

The monitor wire should be connected to the glow plug side of the relay. Not the resistor side. The schematic is incorrect. Karl