Dangle_kt
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| posted on 20/11/08 at 08:36 PM |
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header tank breather - what do i do with it?
I have a tank like this
 
header
and as far as I can tell the top outlet right under the cap on the neck, is just a breather.
I don't need it.
Whats the best way to blank it off?
[Edited on 20/11/08 by Dangle_kt]
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owelly
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| posted on 20/11/08 at 08:39 PM |
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If you have a pressure cap, you'll need that fitting to take the hot coolant to a safe place if/when it lifts.
http://www.ppcmag.co.uk
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JohnN
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| posted on 20/11/08 at 09:03 PM |
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It's not a breather, it's the pressure relief outlet, that you would be best connecting to a piece of tubing directed somewhere down out
of harms way, in the event of the coolant overheating and blowing out under pressure
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lsdweb
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| posted on 20/11/08 at 09:48 PM |
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As above. Try and direct it away from the wheels because antifreeze can be quite slippery! Don't ask me how I know!
Wyn
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Dangle_kt
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| posted on 20/11/08 at 10:01 PM |
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ohhhhhhh
I see! It only gets used it the pressure gets to high!
That makes sense.
Cheers Guys!
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Chippy
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| posted on 20/11/08 at 11:45 PM |
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quote:
header tank breather - what do i do with it?quote:
Errrmmmmm! well that could give rise to quite a few one liners.
BUT
If the pressure cap is of the two way type, "ie" lets water out, and lets it return as the system cools down, then you really need to tube
it to an overflow bottle. Two way cap will have a big rubber washer held down by the spring, but in the centre will be a smaller rubber washer that is
held up by a very light spring, so as the syatem cools and a vacuum is formed it will draw the water in the overflow bottle back into the header tank.
HTH Ray
To make a car go faster, just add lightness. Colin Chapman - OR - fit a bigger engine. Chippy
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