72 Slant Six running too cold
So I got this car a week ago, and I noticed on the way home that the temp gauge showed the temp just below the first mark for the normal range. picture shows what the gauge tells me.
I figured it was just because it was so cold outside, and maybe the guy yanked the thermostat at some point.
A day or so later, I yanked it, since i replaced the heater core, hoses, etc. anyway, and there was a stat in it, I believe the factory one (car has 55k miles).
I replaced it with a 180-degree thermostat, which I usually do on old cars here, as it gets very hot, and bumper-to-bumper traffic, most old cars do not like.
Anywho, I got everything done, and now it reads even lower. The heat gets warm, but not blazing *** hot, like I want it to. With it at 30-degrees outside, if I crack the window a bit, it's not warm enough to overcome that.
I thought maybe the gauge was off, so I got one of those Mr Gasket radiator caps with the temp gauge in it. Yesterday it was 60 outside, and after letting it idle forever, the gauge on tghat only got up to maybe 140.
I know the 180 thermostat is opening, because the system builds pressure, and the upper hose gets hard and hot.
Now one caveat to this, is that I am still waiting on the correct heater control valve, so for now i am not using one. I figured I would cut it in, once it gets here.
I wouldn't have thought that the heater control valve would be used to regulate engine temp, because that's what the thermostat is supposed to do.
Any ideas? I think I'll swap it back to a 195 thermostat, but even with the original one in it, the temp gauge went up only a hair more, and was still below the normal range.
Good problem to have in the heat of Summer, but the Winter....not so much!
So I got this car a week ago, and I noticed on the way home that the temp gauge showed the temp just below the first mark for the normal range. picture shows what the gauge tells me.
I figured it was just because it was so cold outside, and maybe the guy yanked the thermostat at some point.
A day or so later, I yanked it, since i replaced the heater core, hoses, etc. anyway, and there was a stat in it, I believe the factory one (car has 55k miles).
I replaced it with a 180-degree thermostat, which I usually do on old cars here, as it gets very hot, and bumper-to-bumper traffic, most old cars do not like.
Anywho, I got everything done, and now it reads even lower. The heat gets warm, but not blazing *** hot, like I want it to. With it at 30-degrees outside, if I crack the window a bit, it's not warm enough to overcome that.
I thought maybe the gauge was off, so I got one of those Mr Gasket radiator caps with the temp gauge in it. Yesterday it was 60 outside, and after letting it idle forever, the gauge on tghat only got up to maybe 140.
I know the 180 thermostat is opening, because the system builds pressure, and the upper hose gets hard and hot.
Now one caveat to this, is that I am still waiting on the correct heater control valve, so for now i am not using one. I figured I would cut it in, once it gets here.
I wouldn't have thought that the heater control valve would be used to regulate engine temp, because that's what the thermostat is supposed to do.
Any ideas? I think I'll swap it back to a 195 thermostat, but even with the original one in it, the temp gauge went up only a hair more, and was still below the normal range.
Good problem to have in the heat of Summer, but the Winter....not so much!