I'm baffled... I have changed the antifreeze and then bled the system, no probs with the lower bleed point but the upper one is causing some bafflement. After a while I got the heater working OK and my plan was run it up to temp and use the pressure in the system to carefully bled the upper point. So i gingerly undid the upper bleed screw expecting air then coolant out but there's nothing. Surely the whole system is under some pressure. I even dibbled water down the tube revved the engine and nothing happened? does the bleed tube suffer from blockages or does it just never bleed the air????

Sorry forgot to mention its an 02 Seicento Sporting

I turn up the heater control, and then if im having problems, i blow over the coolant tank, that forces air out, but needs good lungs.

If it proper hot and the heater is on full though, i hardly ever have probs

Thanks Kritip, whats got me baffled is when I took the upper bleed screw out at full temp there was nothing.... no escaping air or water

C'mon chaps any ideas on the top bleeding point and why I can't get any fluid out

The coolant level may or may not be sufficiently high enough for it to go up the tube (it's uphill from the block, after all).

Cool the thing right down.. take the reservoir cap off and take the bleed screw out.

Top the reservoir up to Max and then start the engine. Coolant *should* start to come out of the bleed hole.

If it doesn't, cup your mouth round into the reservoir aperature and blow into it, to pressurise the reservoir. That will force coolant up the heater pipe and out the hole. Hold this pressure while someone screws in the bleed screw.. then release.

Job done!

Don't get antifreeze in your mouth or on your lips or you'll die. It's pretty nasty stuff.



Ralf S.

Ralf S. said:

Don't get antifreeze in your mouth or on your lips or you'll die. It's pretty nasty stuff.

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Tis not good, but i swallowed a mouthful a few years back when i watercooled my pc. Forced myself to sick it up, and I was fine

DOn't want to scare the guy of from trying, thats all

bsafirebird said:

C'mon chaps any ideas on the top bleeding point and why I can't get any fluid out

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Good job I read all the other posts!
Thought this was a medical question for a minute

Thanks for the tips chaps I was expecting a pressurised system to provide the means of pushing the coolant through but I'll give it a go cold.
I usually prefer my spirits with a dash of soda so I'll have some standing by if I get a mouthful of Chateau Halfords 2008

I did get antifreeze in my mouth when i did bleed the cooling system it taste ok :yum:

FIREsporting said:

I did get antifreeze in my mouth when i did bleed the cooling system it taste ok :yum:

Click to expand...

Careful, small quantities can make you go blind, and not quite as pleasurably as the other way.

Cheers

PD

bsafirebird said:

Thanks for the tips chaps I was expecting a pressurised system to provide the means of pushing the coolant through but I'll give it a go cold.
I usually prefer my spirits with a dash of soda so I'll have some standing by if I get a mouthful of Chateau Halfords 2008

Click to expand...

I think it does, eventually. But on Titch I noticed that the heater only sorted itself out once I'd given it a helping hand.

Yes.. antifreeze isn't so toxic that it'll kill you on the spot.. but it is harmful. Trouble is, it looks so harmless. When you give your reservoir a puff, use a clean cloth round the lip or wipe it with a wet cloth first.

Ralf S.

yer it does take a look at this

http://news.bbc.co.uk/1/hi/england/west_yorkshire/4701360.stm