Can I add a thermostat (glow plug) to 1500D?

oldgrizzlybear · Jan 17, 2007

I have a 1500D and I am currently living in northern Mississippi. The 1500D did not have a thermostat when I bought it but N MS temps most of the time are warm enough (at least when I need the tractor). I will be relocating to southern Wisconsin is a few months and would like to make this tractor useable in colder weather which means adding a thermostat. Is this doable by just ordering the parts and then putting them on? I assume I'll also need to added some form of heater either radiator or block. Any suggestions?

thanks,

Larry

normde2001 · Jan 17, 2007

oldgrizzlybear said:
I have a 1500D and I am currently living in northern Mississippi. The 1500D did not have a thermostat when I bought it but N MS temps most of the time are warm enough (at least when I need the tractor). I will be relocating to southern Wisconsin is a few months and would like to make this tractor useable in colder weather which means adding a thermostat. Is this doable by just ordering the parts and then putting them on? I assume I'll also need to added some form of heater either radiator or block. Any suggestions?

thanks,

Larry

Are you sure it does not already have a "thermostart"? Of course you can always order the parts and install them.

oldgrizzlybear · Jan 17, 2007

Yes, I'm sure it doesn't have the thermostat. Does anyone have experience adding one? Is there any "got you's"?

Larry

swedish-fish · Jan 17, 2007

Grizzly,
Just to be clear... you mean "thermostart" not "thermostat", right?

This is my first winter with a used YM155D and I'm waiting to see how badly I need a block heater. So far, the thermostart alone is getting the job done along with PS fuel treatment. This morning it was 9 degrees F and the tractor started after igniting a bit of fuel with the thermostart. I keep it in an unheated garage.

California · Jan 17, 2007

Thermostart was available as an aftermarket kit.

There's a picture of the kit in this old post
http://www.tractorbynet.com/forums/yanmar/55871-small-plastic-bottle-top-ym240.html#post628609
and in that same thread scroll down to the bottom for a photo of the modern version that uses a different reservoir and refills itself from the injector overflow line. (I would prefer the modern reservoir if I were starting from scratch.)

Here's how its wired:
http://www.tractorbynet.com/forums/...tion-switch-wiring-thermostart-yam240elec.gif

And here's a photo of the first-series option kit. (with 25 years of dirt stuck to it.)
http://www.tractorbynet.com/forums/...urchase-2310d-769904-img_5922rthermostart.jpg

I think Perkins is the patent owner and there are only two versions of Thermostart, screw-terminal and push-on terminal. The Perkins Thermostart in this box cost only $15 from a ThermoKing parts house, and was identical to the used one shown.

Edit: add: I've been advised that after the YM2000 era, later Yanmars used a similar Thermostart with different thread diameter. Check before buying!