74 thomas 1200 g questions

[silverlakexj]

My dad has a 1974 thomas steer, with a 4cyl wisconsin. We have been running it for a few weeks, on and off. Then, in the middle of dumping a load of dirt, it died. The problem is that it doesn't have spark. we've changed the distributer, and have tracked it down to a short, somewhere. Also, we get power on the ignition (sometimes) but when we use a jump wire to get it near the distributer, we don't have power on the other end, just the igniton side. We've used different gage wires. Questions: Could the ignition be bad? (don't think so because we get power like we should) What have we missed? Do I have to pull all the wires apart then search each one for a short? any help you can give on this is really apreciated. Thanks!!! Dallas

 

[Tazza]

Does it have a wire/sender attached to the block/head(s) anywhere. SOme came with a thermal switch so if it over heated it would shut down and not warp and fail. Hopefully its as simple as that.