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Author urgent help needed - driving without radiator coolant cap
dna23
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Registered: 1st Nov 04
Location: Northamptonshire
User status: Offline
   7th Dec 04 at 17:48   View User's Profile U2U Member Reply With Quote

as the title suggests, i've lost me radiator coolant tank cap thingy so is it safe for me to drive or do i need to get a new one before i start a journey???
broster
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Registered: 6th Dec 02
Location: Drives: E39
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7th Dec 04 at 18:07   View Garage View User's Profile U2U Member Reply With Quote

not really, you water will escape.......
dna23
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Registered: 1st Nov 04
Location: Northamptonshire
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7th Dec 04 at 18:14   View User's Profile U2U Member Reply With Quote

kk, wat if i was to duct tape it up or place a rubber glove over it and laccy band it down and secure it somehow... wud that be ok for a temporary fix until i can get me new cap :O
Corsa^Dan
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Registered: 4th Dec 02
Location: Sleaford, Lincolnshire
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7th Dec 04 at 18:18   View User's Profile U2U Member Reply With Quote

yeh cant c y not, as long as the water cant get out it SHOULD b ok
James_DT
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Registered: 9th Apr 04
Location: Cambridgeshire
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7th Dec 04 at 18:23   View User's Profile U2U Member Reply With Quote

What about the pressure? You'd have to use something that could maintain the pressure in the system, surely?
Corsa^Dan
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Registered: 4th Dec 02
Location: Sleaford, Lincolnshire
User status: Offline
7th Dec 04 at 18:25   View User's Profile U2U Member Reply With Quote

shhs fool

Its not called a "Header tank" for nothing. if u have noticed its higgher (slightly) than the inlets too the engine. this creats enough pressure in the system.

I sure that the system dont require proper pressure 2 work. could br wrong tho.

its just an after effect of water being heated up and expending.
Corsa^Dan
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Registered: 4th Dec 02
Location: Sleaford, Lincolnshire
User status: Offline
7th Dec 04 at 18:26   View User's Profile U2U Member Reply With Quote

eek missed a bit -

Its not called a "Header tank" for nothing.

Too creat a "Head" of water

FEAR MY PLUMBING KNOWLEDGE!!!!! (sp) (dont fear that tho)
James_DT
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Registered: 9th Apr 04
Location: Cambridgeshire
User status: Offline
7th Dec 04 at 18:37   View User's Profile U2U Member Reply With Quote

Notice question marks?
It was a question.
FEAR MY KNOWLEDGE OF THE ENGLISH LANGUAGE!!!!
Black Corsa SRi
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Registered: 25th May 02
Location: ---Stockport---- Drives: Pug 206 Roland Garros
User status: Offline
7th Dec 04 at 21:01   View User's Profile U2U Member Reply With Quote

you need the cap really or something thats gonna hold the pressure cause despite what people are saying on here trust me if you rev the engine more than a few thousand revs (ie drive it) with no cap or just a bit of tape the prssure will send a fountian of water out the tank. I know this for a fact as when i changed the coolant on my old corsa I did exacly this when running it to expell air locks etc! LOL

thats why if you were to run the engine then remove the cap as soon as you turn the engine off you get a releace of pressure and that is also why it warns you not to! LOL the warnign is also there to stop you burning yourself onthe hot air more so but u know what i mean! LOL

[Edited on 07-12-2004 by Black Corsa SRi]
James_DT
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Registered: 9th Apr 04
Location: Cambridgeshire
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7th Dec 04 at 23:38   View User's Profile U2U Member Reply With Quote

Thought so, wasn't sure.

Yes, opening the cap on hot engine spurts hot water/steam at you. Trust me.
I'd get a cap before I drove any car missing it.
Stone Cold Rattlesnake
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Registered: 12th Jun 02
Location: London .................. Drives: Astra IV
User status: Offline
7th Dec 04 at 23:51   View User's Profile U2U Member Reply With Quote

Yeh def. get hold of another cap, a temporary solution like that is ok for driving to get the new cap for instance - temporary only though
Mark Petty
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Registered: 26th Jul 01
Location: Bournemouth Drives: Suzuki gsf600
User status: Offline
8th Dec 04 at 08:48   View User's Profile U2U Member Reply With Quote

The time u spent on here writing this message you could of got the cap
PaulW
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Registered: 26th Jan 03
Location: Greater Manchester
User status: Offline
8th Dec 04 at 08:52   View User's Profile U2U Member Reply With Quote

i was driving with a faulty cap which wasnt holding pressure, and cos of it it kept boiling over when i was in long queues...

the pressure created with a good cap helps raise the boiling temperature so stopping it boiling over before the fan kicks in.

new cap cost me about 12 from vauxhall - there all the same too, so dont worry if it will fit or not



there was also a noticeable difference to in running temps with the faulty cap compared to the good one, the engine runs alot cooler with a good cap!

[Edited on 08-12-2004 by PaulW]
Adam-D
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Registered: 11th May 02
Location: Cheshire
User status: Offline
8th Dec 04 at 09:14   View User's Profile U2U Member Reply With Quote

i have a spare cap
Filby1
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Registered: 12th Dec 03
Location: Brighouse
User status: Offline
8th Dec 04 at 09:28   View User's Profile U2U Member Reply With Quote

Gte a ne wone from Vauxhall Only 11 quid. id say worth it for a good running car
Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
8th Dec 04 at 09:32   View User's Profile U2U Member Reply With Quote

i payed like 3 from my local auto factors for a new cap. You need it cos like it has been said, it will boil over when the car idles when hot, and u lose a shitload of water, then the engine overheats.
Dinokid
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Registered: 25th Dec 02
Location: Winnington, Cheshire Drives: Honda Civic Marlin
User status: Offline
8th Dec 04 at 10:42   View User's Profile U2U Member Reply With Quote

u can run without 1, but water will evaporate out, so it'll need toppping regularly.
Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
8th Dec 04 at 10:54   View User's Profile U2U Member Reply With Quote

my x12xe defo couldnt run without one. No pressure and the engine kept overheating

 
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