Since this is the first thread I found after happening onto this site that talks about the Ford 1900, maybe someone can help me. We have a Ford 1900 4WD tractor that the tractor place pretty much ruined while fixing something else. Not cool to let it sit there without putting oil in it!! Of course, they don't accept any responsibility. Now it smokes and needs some expensive work on it we can't afford. Starting with the small stuff though (since we bought it used and don't have a manual), where is the thermostat on this model? I think it needs to be replaced, but so far I can't find it. Any advice?