JD 2030 gas engine tractor overheat and shutdown

[dfunkyd]

Hi All, My friend has a jd 2030 gas engine tractor that overheats in warm summer temps and automatically shuts down. So far we have put on a new radiator, new water pump, new thermostat, new fuel shutoff solonoid on carb and have done a prestone flush of the water system, filling the sytem up with new radiator fluid/distilled water at 50/50. Also have a clean airfilter, new fuel pump, new plugs and wires. Can anyone think of what is causing this continuing shutdown problem.
Thanks for your advice!

 

[RickB]

Electrical shutdown like turning off the key? Could be the coil.
Fuel shutdown, sputters & dies? Could be vapor lock, fuel supply, fuel tank cap vent.
Is the overheating proven by a known thermometer?
A 2030 has no automatic high temp shutdown mechanism so there is a failure cause for whatever is happening.

 

[Zebrafive]

Too much advance of the timing could cause overheating, no idea why it shuts off.
Maybe the coil was wired full time 12volts and is overheating?

 

[RickB]

I’m pretty sure a 2030 used a resisted coil with a 12V feed.

 

[dfunkyd]

Hi RickB Yes it shuts down instantly like turning the key off. A half hour later it will restart. A new coil was installed about a year ago per a mechanics suggestion. Now my buddy is saying that a JD dealership says there is no auto shutdown for high temp like you said. Any other ideas and also is there a "known thermometer" we can buy to install on this tractor.
Thanks
Don

 

[dfunkyd]

I guess we could check the timing. Can you explain what you meant by the coil being wired full time a little bit more? I don't understand that one.
Thanks

 

[RickB]

An inexpensive infrared non contact thermometer is a useful handy tool.
Infrared thermometer - Wikipedia

 

[dfunkyd]

Ok we'll get one and see what happens.

Thanks

 

[RickB]

I'm not sure the engine temperature has anything to do with the shutdown problem. If the link below shows an accurate electrical diagram, I would look very closely at the circuit breaker. Make yourself up a small trouble light with some clip leads. Clip it to ground and the positive side of the coil. When the engine dies, see if the trouble light goes out.

https://www.tractorbynet.com/forums...-ignition-wiring-post3904295.html#post3904295

I suggested an IR thermometer because the OP claims the tractor is overheating. I'd like for him to know whether it is or not. I agree that overheating (actual or suspected) is probably not connected to the shutdowns. The CB could easily be the culprit.

 

[Zebrafive]

I’m pretty sure a 2030 used a resisted coil with a 12V feed.

I does, my thought is someone bypassed the resistance wire.