Darned Old Tractor!

There is something about old red tractors that just drives me nuts if something doesn't work just exactly like it is supposed to.

Heater on the '75 1066..... .

It blows "warm" but not "hot" to the touch. So, I'm going to back flush the core and see if I can get any crud out of the darned thing.

Now, can those hoses be installed backwards? The heater has a "heat control" valve and wondered if it makes any difference which way the flow should be?

The rear end was overhauled in this tractor and the cab has been off at one time. Just wondering if someone could have hooked the hoses up backwards maybe and this might be impeding the flow?

Allan

But, even after the tempreature is up to midrange on the gauge, I should be getting a hot core and not just merely lukewarm air.

The heater will run ya outta there given enough time, but it still is just "warm to the touch" if I hold my hand in front of the ducts. That thing ought to be running "hot".

Dunno, maybe I'm just too darned picky. :>(

Allan

Oh yeah, it was up to temp and seems like plenty of air flow; just not getting the heat I think shold be gettin'.

Darned core and evaporator could be plugged up also, but I really don't want to pull that roof cover until I'm ready to tackle the air conditioning too.

The condenser fans must have gone south on the provious owner, because the A/C has been disconnected and a "By-Cool" unit installed in the roof. That joker is coming back out of there for sure. IH just didn't use water coolers. :>)

Allan

Does your boss allow overtime?

Your up awfully early this mornin.

The control valve should be on the pressure side not the return in my estimation.

Gary

I guess like Allan, I doubt if I've ever averaged more than 6 hours sleep a night in my entire life. Folks like Allan and I just enjoy life too much to let it slip by in our sleep. By the time we are 80, we will have experienced 20% more living than the rest of you.

Aw, I've never been able to sleep much over four or five hours so I'm usually up between 2 or 3. :>(

Hugh was right; I probably wasn't awake yet. 'Course the valve would go on the input side. Duh on me. :>(

Thanks,

Allan

The hot water comming from engine should enter the bottom of the heater core..... that way it is full of water not air.....if the water enters the top, it simply drops to the bottom and out ....core full of air = no heat..... .Don

Cant tell you about the hose item, never had any problems with them. I never thought the heat control switch or dial was a device to get excited about. Quite cheap I thought. All I could ever find was one setting, full heat, and if I didn't want that it was shut the taps off down at the engine. Most of summer the taps were shut off, spring and fall you went with windows open and winter you were marginally comfortable.

But then the whole design of tractor cab heaters was wrong back in those days. Damn hard to blow heat down. I always figured the heater should have been a the floor and a/c in the roof. I expect the heat valve or heater core, could be your problem. It also probably has to circulate the right direction.

There's not much to a heater. Two small diameter hoses that plug into the inlet and outlet side of the water pump (not the radiator hoses), a heater core, an electric fan, and a box to house the works with doors and flappers and ducts.

If the heater is blowing at least warm then coolant is getting to the core. If the core was plugged up then it would overheat. Best thing to do is to check the temp of each hose while running and see if one is significantly hotter than the other and the cooler one feels like it doesn't have much water in it. It should be pretty squishy if it's not getting flow through.

I bet it's your thermostat. Be sure to use plently of coolant when you refil it. Coolant contains ethelyne glycol to prevent the water from freezing but it also contains a oil which is a rust inhibitor that protects your water passages and keeps your thermostat free and operational from corrosion.

Engine and temp come right up to normal. Problem is somewhere in that darned core or the valve.

I'm gonna backflush the silly thing; I've had pretty good luck doing that with a garden hose. Three or four times in both directions and it usually cleans 'em right out.

Was just wonderin' about that valve and wheather it could be "plumbed" wrong. :>)

Allan