quote:

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Originally posted by Vaux Lad

quote:

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Originally posted by ed
If you aren't loosing water and you don't have any mayo on your filler cap your gasket isn't gone.

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Thats only if it goes between a coolant gallery and oil gallery.
It can go inbetween the coolant and cylinder, meaning you will loose coolant(evaporates inside the cylinders), it will overheat and pressurise the cooant system, but you wont get mixing of oil/coolant as the oil gallery section of gasket isn't blown...

[Edited on 11-07-2007 by Vaux Lad]

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Nope, the hissing is just the pressure being released.

Silly question i no but is it bad if you take the cap of while the car is hot went to check mine the other day stared to un done the cap and started hissing let it finish then took it all the way off is this going to cause a problem?

[Edited on 12-07-2007 by SXI - Matt]

quote:

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Originally posted by ed
If you aren't loosing water and you don't have any mayo on your filler cap your gasket isn't gone.

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nope it isnt im pretty sure.

just running rich as ever :) lol.

If the head gasket had gone the water would be going out of the exhaust pipe.

nope :)

radiator at the minute is for a 1.6.

but the temp never goes above 3/4

but even if the water was boiling i wouldnt see a reason for it to disappear? it'd just condense again.

If you're just running water then it will boil more quickly.

If you aren't loosing water and you don't have any mayo on your filler cap your gasket isn't gone.

Your radiator could be knackerd too, does the temp go down if you run your heaters on hot full blast?

water with a tiny bit of coolant as i have no more proper coolant.


why?

[Edited on 11-07-2007 by dan_c4rsa]

Sounds like a stupid question but....

You running straight water or coolent in it?

kk cheers. doesnt smell of petro though but yeh might be a trace.


cheers you lot. but as far as i know theres no water loss anywhere :)edit - as in leaks

[Edited on 11-07-2007 by dan_c4rsa]

not always

could still be a leak on the water pump or somewhere else, but as for the massive buildup of pressure thats usually due to HG failure.

get a test done on the coolant for traces of exhaust gases, most garages can do it, they just put some paper in it which changes color to indicate it or not.

[Edited on 11-07-2007 by PaulW]

meaning the water's just geting burnt off?

mayo on cap is usually when the gasket blows between a water and oil way.

what your saying sounds like the gasket has gone between a cylinder and a water way.

[Edited on 11-07-2007 by PaulW]

theres no mayo mate checked that :thumbs:
but thats only when it totally goes

take ya oil cap off on the head of the car and c if theres a brown/ yellowish colour on the lid of have a look at the dip stick

The waterpump runs from the cambelt, behind the cambelt covers.

nah got water loss.

not very much but some

quote:

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Originally posted by Will_Sport
my engine never overheated when head gasket was going.

not an airlock or something like that? shouldn't be boiling/v.pressurised...... your not taking the cap off whilst warm are you?

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no i take the cap off when its cold. as for an air lock could be but i doubt it. air lock wouldnt result in loss of water?

my engine never overheated when head gasket was going.

not an airlock or something like that? shouldn't be boiling/v.pressurised...... your not taking the cap off whilst warm are you?

wherebouts is the waterpump mate?

the engine never overheats though even with hard use.

Sounds like it.

Or the waterpumps fooked, leaking water and not circulating.

Boiling/very pressurised header tank

loss of water



Head gasket going? :(