Bleeding Cooling System?

raddavey · Post by **raddavey** » Fri Apr 18, 2008 12:18 am

Does anyone know the procedure on the ET's to bleed the cooling system?

mr et · Post by **mr et** » Fri Apr 18, 2008 6:24 am

yeah run da car with no cap on the radiator

Paul Smith · Post by **Paul Smith** » Fri Apr 18, 2008 4:06 pm

I don't think it needs bleeding as such. It just seems to work properly on it's own.

Post by **tassuperkart** » Fri Apr 18, 2008 7:26 pm

Just ensure you have the "jiggler valve" or the small hole in the thermostat plate positioned uppermost or it will never bleed.

If you dont have one in the thermostat then you have the wrong one!

Either get the right one or drill 2mm hole in the widest part of the thermostat plate.

Other than that, just run it with the rad cap off untill the thermostat opens and the water level stabilises.

L8tr
E

Kimmo · Post by **Kimmo** » Sat Apr 19, 2008 2:27 am

Squishing upper radiator hose helps a bit.

Post by **thepurplepulsar** » Sat Apr 19, 2008 11:31 am

Remember to turn the heater on to hot aswell.

Post by **tassuperkart** » Sat Apr 19, 2008 3:27 pm

Ohhh fuck yer........well spotted M8. I totally forgot to mention that.
L8tr
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NIXAMUS · Post by **NIXAMUS** » Sat Apr 19, 2008 4:10 pm

All you have to do is fill your radiator, let it warm up, put your hand over the hose that your thermostat is on, hold your hand on the hose, when it is to hot to hold on to the water should go down in the radiator, top it up and your done.

Laterz

Nixamus...

raddavey · Post by **raddavey** » Sat Apr 19, 2008 4:17 pm

Cheers guys.

I think my HG might be leaking water or the head has cracked. I warmed it up today to get all the air out of the system and there is a slight amount of steam from the exhaust, unless it was just because we had a really cold night. It's nothing major you can barely see it and the car is running fine.
I'll see how it goes when i take it out for a drive. I think it might be best i pull the head off, inspect the head and replace the head gasket with new head bolts or get it o-ringed.

Post by **tassuperkart** » Sat Apr 19, 2008 6:15 pm

Condensation and steaming from the zorst is quite normal after startup. look at modern car zorsts steaming like mad an water pouring out of the muffler tip on a cooler morning.

Before you get all funky and get your hands oily, why dont you do a simple pressure test on the cooling system first to put your mind either at ease or troubled eh?

Might save a lot of effort and money.

L8tr
E

raddavey · Post by **raddavey** » Sat Apr 19, 2008 7:56 pm

well modern cars steam because they have a cat on them (i don't) but yeah i'm not going to pull it apart just yet. Remember it did pressurise the cooling system on the dyno.

The radiator isn't bubbling and its staying clean but i haven't really taken it for a long drive all week to do a proper test.

Post by **tassuperkart** » Sat Apr 19, 2008 8:40 pm

raddavey wrote:well modern cars steam because they have a cat on them...........

Explain me this in detail will you?
L8tr
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raddavey · Post by **raddavey** » Sat Apr 19, 2008 8:53 pm

Taken from Wikipedia

A three-way catalytic converter has three simultaneous tasks:

1. Reduction of nitrogen oxides to nitrogen and oxygen: 2NOx → xO2 + N2
2. Oxidation of carbon monoxide to carbon dioxide: 2CO + O2 → 2CO2
3. Oxidation of unburnt hydrocarbons (HC) to carbon dioxide and water: 2CxHy + (2x+y/2)O2 → 2xCO2 + yH2O

That was my understanding why newer cars steam a lot when cold.[/b]

Post by **tassuperkart** » Sat Apr 19, 2008 9:41 pm

So why do my cars steam freely out the zorst depending on conditions?
They are straight thu systems and dont have cats.
L8tr
E

raddavey · Post by **raddavey** » Sat Apr 19, 2008 11:09 pm

hmm could be because you live in Tassie?
lol i dunno, moisture trapped in the exhaust from overnight.
Or the exhaust heating up the humid air?

Ok maybe there is nothing wrong with my car. Hopefully anyway.

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Bleeding Cooling System?

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