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dan_c4rsa

Member

Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline

10th Jul 07 at 22:42

Boiling/very pressurised header tank

loss of water

Head gasket going?

Vaux Lad

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Registered: 15th Dec 04
Location: Stoke-on-Trent
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11th Jul 07 at 00:42

Sounds like it.

Or the waterpumps fooked, leaking water and not circulating.

dan_c4rsa

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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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11th Jul 07 at 13:44

wherebouts is the waterpump mate?

the engine never overheats though even with hard use.

Will_Sport

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Registered: 28th Jun 04
Location: Notts
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11th Jul 07 at 16:23

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?

dan_c4rsa

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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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11th Jul 07 at 16:37

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?

Vaux Lad

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Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline

11th Jul 07 at 17:56

quote:
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?

Depends where the gasket blows tho.

If it goes in between a oil way and cylinder, you wont loose water or overheat.
It will just burn oil.

dan_c4rsa

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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline

11th Jul 07 at 17:59

nah got water loss.

not very much but some

Vaux Lad

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Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline

11th Jul 07 at 17:59

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

andys sxi

Premium Member

Registered: 19th Jan 06
Location: Chester Drives:Scirocco tdi bluemotion
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11th Jul 07 at 18:02

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

April 08 feature car

dan_c4rsa

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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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11th Jul 07 at 18:06

theres no mayo mate checked that

but thats only when it totally goes

PaulW

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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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11th Jul 07 at 18:14

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]

dan_c4rsa

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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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11th Jul 07 at 18:16

meaning the water's just geting burnt off?

PaulW

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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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11th Jul 07 at 18:18

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]

dan_c4rsa

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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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11th Jul 07 at 18:24

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]

Member

Registered: 10th Sep 03
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11th Jul 07 at 18:31

Sounds like a stupid question but....

You running straight water or coolent in it?

dan_c4rsa

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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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11th Jul 07 at 19:12

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

why?

[Edited on 11-07-2007 by dan_c4rsa]

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Registered: 10th Sep 03
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11th Jul 07 at 19:18

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?

dan_c4rsa

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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline

11th Jul 07 at 19:20

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.

Member

Registered: 10th Sep 03
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11th Jul 07 at 19:29

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

dan_c4rsa

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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline

11th Jul 07 at 19:30

nope it isnt im pretty sure.

just running rich as ever

lol.

Vaux Lad

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Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline

11th Jul 07 at 23:53

quote:
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.

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]

SXI - Matt

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Registered: 8th Jul 07
Location: Leicestershire Drives: Corsa C SRI
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12th Jul 07 at 09:46

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]

Vaux Lad

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Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline

12th Jul 07 at 12:07

Nope, the hissing is just the pressure being released.

dan_c4rsa

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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline

12th Jul 07 at 15:56

quote:
Originally posted by Vaux Lad

quote:
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.

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]

im reckoning thats whats gone.
i have no loss in speed though, so im guessing its only just begun to go.

i'll keep it it the garage then take it to get it repaired - rather have it done by someone else as A - just got me a full time job and B - if it buggers up i'll take it back.

need to sell me car soon though

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