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Author Subject: Radiator water level
Kevwlsn3

Newbie

Location: Glasgow

Registered: 19 Oct 2013

Posts: 43

Status: Offline
Post #1
So after changing a radiator I am a bit pataniod about the coolent level inside the radiator.

I fill it up and then take the car out after the engine stops and cools down I look at the water level inside the radiator and it's about 1.5 litres short of being full.

Now I am not daft and I know when the engine and cool plenty gets hot it expands and thus the excess leaves via the top tube. But 1 litre was a little but much I thought.

Is this normal does any one know the usual level of coolent inside the radiator?

Thanks

Kev
Posted 22nd May 2014 at 09:46
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scotzman

Seasoned Pro

Location: Dundee

Registered: 24 Jun 2011

Posts: 1,408

Status: Offline
Post #2
Might be your rad cap, I had this with mine, leaked about the amount you say and no further.
It was leaking out through the little overflow pipe so I guess the pressure release valve in the cap was f@*ked..

________________________________________

'90 1.6 205 GTi, '98 306 GTi-6
Posted 22nd May 2014 at 10:46
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scotzman

Seasoned Pro

Location: Dundee

Registered: 24 Jun 2011

Posts: 1,408

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Post #3
Oh, and when you turned it off when the engine was up to temp, you could hear a hiss from the cap.

________________________________________

'90 1.6 205 GTi, '98 306 GTi-6
Posted 22nd May 2014 at 10:49
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Kevwlsn3

Newbie

Location: Glasgow

Registered: 19 Oct 2013

Posts: 43

Status: Offline
Post #4
I shall check , I assumed that when the pressure increased through the temperature the excess escaped out the overflow pipe I take it the level should be full all the time?
Posted 22nd May 2014 at 11:19
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Niall

Seasoned Pro

Location: Epsom

Registered: 06 Jun 2012

Posts: 1,941

Status: Offline
Post #5
Yep exactly same happened to mine. New rad cap and problem solved Smile
Posted 22nd May 2014 at 12:06
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Day666

Seasoned Pro

Location: Bristol

Registered: 20 Apr 2013

Posts: 5,214

Status: Offline
Post #6
Niall wrote:
Yep exactly same happened to mine. New rad cap and problem solved Smile


Same on mine New Cap sorted .!!!
Have you bleed all 3points after fitting New Radiator ????
Fitted a Nissan Rad & just read how to do it on FAQ section on here ...
Makes sure you have no Air Locks Thumbs up
Posted 22nd May 2014 at 12:09
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chiefton

Seasoned Pro

Location: cranleigh

Registered: 09 Dec 2012

Posts: 1,195

Status: Offline
Post #7
new cap will sort it Thumbs up

________________________________________

cherry rallye daily (the money pit)
Posted 22nd May 2014 at 12:43
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Kevwlsn3

Newbie

Location: Glasgow

Registered: 19 Oct 2013

Posts: 43

Status: Offline
Post #8
Yea it's bled correctly I happen to have a new cap so will try that today , thanks!
Posted 22nd May 2014 at 12:57
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buzzbrightyear

Seasoned Pro

Location: hiding all receipts for car

Registered: 09 Jul 2008

Posts: 11,901

Status: Offline
Post #9
Should it stay full to the brim then or will it lose some out the pressure valve in the cap and find it's own level a but lower??

________________________________________

andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
Posted 22nd May 2014 at 16:07
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jamiek_uk2000

Seasoned Pro

Location: Llanelli

Registered: 18 Apr 2009

Posts: 1,925

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Post #10
Ah. So I need a new cap as well.

Are they universal?

________________________________________

205 GTi Red - G939 RTU - Died!
306 GTi 6 Diablo - Being resurrected! Project Thread

Looking for:
VTS P1 Rack
PR1.2 16"
Posted 22nd May 2014 at 16:54
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline
Post #11
Pretty much, some are lower pressure, just get one from a dealer, about £15 iitrc.

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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 22nd May 2014 at 17:56
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Puggitt

Regular

Location: New Zealand

Registered: 07 May 2012

Posts: 293

Status: Offline
Post #12
In my experience, with the plastic rad caps, the atmospheric valve (let air in when cooling) flips over it's self cause the cap to hold absolutely no pressure but I needle used carefully to flip it back can save you so cash Thumbs up
Posted 22nd May 2014 at 19:48
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #13
I only use genuine caps on these, they seem to last much better than aftermarket cheaper alternatives.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 22nd May 2014 at 23:09
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aaron6

Seasoned Pro

Location: On the sofa in maidstone

Registered: 16 May 2006

Posts: 5,840

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Post #14
I got a nissens one which seems alright after 4 years. It just feels notchier when your removimg it.

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See the sheer power and might of the lesser known burrowing owl.



Posted 24th May 2014 at 09:57
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #15
Yeah, my Nissens rad came with one all those years ago when I bought it.

I test fitted it and didn't like the feel compared to standard so stayed with the standard one.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 24th May 2014 at 10:05
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline
Post #16
how the hell would you know stan, you never use the damned thing!

they're meant to be notchy to a certain extent, there's two stages to it.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 24th May 2014 at 10:12
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aaron6

Seasoned Pro

Location: On the sofa in maidstone

Registered: 16 May 2006

Posts: 5,840

Status: Offline
Post #17
It's not that sort of notchy. They dont have the smooth feel to a standard one. I dont have any issues with my nissens one. Plus it looks better.

________________________________________

See the sheer power and might of the lesser known burrowing owl.



Posted 24th May 2014 at 11:33
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buzzbrightyear

Seasoned Pro

Location: hiding all receipts for car

Registered: 09 Jul 2008

Posts: 11,901

Status: Offline
Post #18
Where should the level be?

________________________________________

andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
Posted 26th May 2014 at 16:28
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scotzman

Seasoned Pro

Location: Dundee

Registered: 24 Jun 2011

Posts: 1,408

Status: Offline
Post #19
There is a Max and Min marked on the filler.

________________________________________

'90 1.6 205 GTi, '98 306 GTi-6
Posted 26th May 2014 at 16:58
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #20
welshpug! wrote:
how the hell would you know stan, you never use the damned thing!

they're meant to be notchy to a certain extent, there's two stages to it.


LOL

I still take the cap off every now and again to make sure the coolant is still in there. Yes

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 26th May 2014 at 20:14
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