Stills runs HOT!!

[fienloco]

To answer that. Yes I did my own head gasket. I was in no hurry as not to make a major mistake with the gasket. Its has been a ? since she heats up though. Not too likely but I ? myself. Definately not redline hot the gauge reads just over the halfway point. I do ? the temp sensor as it seems way hotter than I remember. Can you touch the top tank of your radiator after its ran?? My silly ?. I ask because I think its me worrying a bit when I souldnt. Then again. Who knows? I also found the heater line on the banjo bolt on the back of the head is leaking a bit apparently only enough to blow out some of coolant then it stops. I am also wondering if the small leak somewhat pinhole could cause this?... That electric fan though I do ? more than the failed stock clutch fan and shroud? It pulls but not through the entire range of the radiator as it is not wide enough. So I understand your concerns and some of the things I changed over that need to go back to what they were i.e the lines off the intake and the intake boot before the turbo. I appreciate the input.

[Grandavi]

You have little issues like leaking vacuum hoses that I would deal with first, but next I would either take the car in for a rad pressure test. Wondering if you had such a bad headgasket before if the car may have been run low on coolant for a while and you have build up somewhere. Also I think the temp sender is fairly inexpensive and simple to replace. You may want to buy one, try it and see if that is any different, then if no change, just return it.

Also, I would test your thermostat first as that is my first thought if coolant levels are normal but it runs hot. Simple to do by putting it in a pot of water with a thermometer and seeing what temp it opens. You could take it right out for a quick test, but it will take longer to heat up the motor.

Also, I try to keep the shroud on, to prevent the fan from drawing warm air from the motor compartment when cooling. I had to remake a shroud once out of sheet metal for my 1977 1ton and then switch the rad from a 3core to a 5core when I started pulling a boat to keep the engine cool.

Any leakage of coolant.. even if only when pressure is built up, should be fixed. Sooner than later.. just to feel safer about driving it.

Be interesting to see if its a single problem or a mix of problems. Slightly over half-way is not a serious issue, although I don't know what that would mean in engine temperature.


Finally, misfiring could be doing it, but that could be a lot of problems. Im guessing you want to make sure the cooling system is perfect first.

[fienloco]

Allright I have drained the coolant down and replaced the old heater hose that was for sure a problem. I have the the intake vacuum parts on order from Toyota to eliviate that issue. I think it may be causing some timing issues. I am going to pull that new tstat and see that it funtioning properlly I always have issues with the damn things every single vehicle I have ever owned old new or otherwise headgaskets too. I have done several hgaskets on my vehicles...

When you bleed the cooling system what is the best method to get the all air out? That is another posibility aside from a leaky heater hose and that could be the problem all in its self. Correct?

I also need to test my oil pressure as it seems lower than I have ever seen it maybe the sending unit. Running down the road on the gas no boost 40+psi?? Not right I say. I remember around 80-psi.

I have so many things that keep running through my head as the car is my pride and joy. I need it. Not about to throw the 5000 Ive spent on it down the drain. JDM. I actually got the engine and tranny from a place in your providence. My old 77 Dodge is worn down and needs to be garaged and loved on alot to make reliable as it once was. Hope to hear back the input is good and more useful than a book thats off on most specs as it is. Thanx again.

[Grandavi]

I think the cooling system is a closed system. Therefore, you put the coolant in and it pushes the air out. Then you fill the reservoir and run the car for a bit. Checking the external reservoir to ensure it stays full. Shouldn't take long to cycle out the air.

Of course.. thats what I do, it may be incorrect advice.

[btwilson86]

The best way I've read and done is to "burp" the system. Jack the front of the car up as high as you can, remove the cap, and turn the car on. You'll see air bubbles slowly escaping, and you'll need to keep adding coolant as necessary. This process is long (many hours usually), but necessary. You have to do it this way because the Heater Core is located in a spot that makes it higher than the top of the radiator when the vehilce is level, and air gets trapped in it because of this.