still getting hot

[jlyon]

the motor i put in was rebuilt, used for about 5,000 miles, blew the freeze plugs then sat in the garage for a bout a year. it did have dirt dobber nests in the passages, but i broke them up and used air to blow them out. i get the engine built, new water pump and all new seals. the motor hold great oil pressure and all that. i have installed new hoses and a new radiator and it still gets hot. i drove it 1.5-2 miles yesterday and when i parked, it was spitting coolant out through the bottle. the upper hose was hard as a rock and the radiator was cold. Saturday, it got hot and the upper hose was hard, radiator was cold, i thought it was a tstat. so i walked to Autozone, got a new tstat and it was fine driving around town. it has underdrive pullies and i have a set of OE pullies coming to try this. im thinking that maybe i put one of the head gaskets on wrong and could be blocking a coolant passage and that's what is causing my over heating issue.

now it has all new cooling system, "new" motor and all new steering system. i just gotta get the cooling problem fixed, trans leaks fixed and get it aligned and it should be good to go.

[slim87gt]

Are the head gaskets facing the correct way? They say front on the front.one side will look normal with the word front on top of the gasket. Then you put the gasket on the other side the word Front is upside down. Some people make the mistake of putting that gasket in backwards where the word front is on top but its turned around to the back of the motor.
LOL I hope that made sense.....

[projectPONY]

Radiator cap. They're cheap and worth a shot.

Sent from my SPH-L710 using Tapatalk 2

[jlyon]

Radiator cap. They're cheap and worth a shot.

Sent from my SPH-L710 using Tapatalk 2

already has a pressure relief cap that i put on.

Are the head gaskets facing the correct way? They say front on the front.one side will look normal with the word front on top of the gasket. Then you put the gasket on the other side the word Front is upside down. Some people make the mistake of putting that gasket in backwards where the word front is on top but its turned around to the back of the motor.
LOL I hope that made sense.....

i can't remember how i put them on. i think i did it by what the gasket showed. i swear i made sure all the ports were open, but i can not remember and it is driving me crazy. don't know what else it could be.

[0393gt]

T-stat facing the right way?

[BlueCoupeRedVert]

Let it run/ idle with cap off. Rev motor a bit.. do you see water pump pulling water level down? Let it warm up.. see any coolant flowing when t-stat opens?

[jlyon]

Let it run/ idle with cap off. Rev motor a bit.. do you see water pump pulling water level down? Let it warm up.. see any coolant flowing when t-stat opens?

it's not burping or anything. yes the you can see the water moving in the radiator, but water levels aren't fluctuating. not sure when the tstat is opening though.

T-stat facing the right way?

yes

[jlyon]

this is the way i put the tstat in.

http://i37.photobucket.com/albums/e53/klehmann/Explorer/IMG_2085.jpg

[91CoupeMike]

I'm thinking its got a clogged radiator.

[jw33]

this is the way i put the tstat in.

http://i37.photobucket.com/albums/e5...r/IMG_2085.jpg

You realize that thermostat is broken, right?

[Baron Von Crowder]

You realize that thermostat is broken, right?

looks like a generic pic he found, that is an explorer.

[racrguy]

I'm thinking its got a clogged radiator.

I'd be inclined to go with this.

New thermostat and still a cold radiator/hot engine mean one of two things 1) water pump isn't pumping anymore (unlikely, they usually start leaking before the impellers wear out) 2) stopped up radiator.

[jlyon]

I'd be inclined to go with this.

New thermostat and still a cold radiator/hot engine mean one of two things 1) water pump isn't pumping anymore (unlikely, they usually start leaking before the impellers wear out) 2) stopped up radiator.

it has a new radiator in it.

[racrguy]

it has a new radiator in it.

Have you tried running it without a thermostat to see if there's a problem there? You may have a trapped air bubble somewhere. I usually fill up the top radiator hose then quickly put it on the radiator before it can drain out because bubbles are a PITA.

[jlyon]

Have you tried running it without a thermostat to see if there's a problem there? You may have a trapped air bubble somewhere. I usually fill up the top radiator hose then quickly put it on the radiator before it can drain out because bubbles are a PITA.

the problem im having, i thought it was a clogged radiator too, so i bought a new one. that was my next plan of action, running it with no thermostat. i did run it without one before, but it changed nothing. this is why i was thinking the head gaskets. honestly, this is the 4th thermostat i have put in it in the last few months over this.