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Author How do I flush the coolant?
Reepah
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Registered: 27th Feb 05
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12th May 05 at 10:09   View User's Profile U2U Member Reply With Quote

Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
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12th May 05 at 10:11   View User's Profile U2U Member Reply With Quote

pull the bottom rad hose off and then remove the header tank cap.... to completely flush the rad you will need to remove it...
Reepah
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Registered: 27th Feb 05
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12th May 05 at 10:13   View User's Profile U2U Member Reply With Quote

I just wanna check the thermostat... Where is it situated on a 1.4 sport? Pics would be great...
Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
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12th May 05 at 10:26   View User's Profile U2U Member Reply With Quote

jesus snap i have to take mine out later today... unless i'm very mouch mistaken its located were the top rad hose joints the engine... you will have to unbolt the metal pipe.... make sure u have some instant gasket before you start...
Reepah
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Registered: 27th Feb 05
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12th May 05 at 10:28   View User's Profile U2U Member Reply With Quote

Instant gasket? I'm not good with engines...
Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
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12th May 05 at 10:46   View User's Profile U2U Member Reply With Quote

go down to the motor factors today and ask for a thermostat for you car and a tube of instant gasket... it shouldnt be more than £15
Reepah
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Registered: 27th Feb 05
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12th May 05 at 11:10   View User's Profile U2U Member Reply With Quote

What does the instant gasket do?
Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
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12th May 05 at 11:21   View User's Profile U2U Member Reply With Quote

what it says on the tin think about it...
Reepah
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12th May 05 at 11:24   View User's Profile U2U Member Reply With Quote

RCS
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Registered: 26th Jan 05
Location: Lichfield/Dundee
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12th May 05 at 12:07   View User's Profile U2U Member Reply With Quote

If your just changing the coolant use the valve thats located on the thermostat housing. Just unscrew it and the coolant will start pouring out.

Then pour water in the header tank so it runs through the system, and flushes all the old coolant out.

Screw the valve back up, then put some fresh stuff in.
Reepah
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12th May 05 at 12:12   View User's Profile U2U Member Reply With Quote

What mixture do you use, or reccomend to use?
Siberia
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Registered: 9th Oct 03
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12th May 05 at 12:54   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Corsa_Si_16v
If your just changing the coolant use the valve thats located on the thermostat housing. Just unscrew it and the coolant will start pouring out.

Then pour water in the header tank so it runs through the system, and flushes all the old coolant out.

Screw the valve back up, then put some fresh stuff in.


some cars dont have that bleed valve...
Reepah
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Registered: 27th Feb 05
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12th May 05 at 12:57   View User's Profile U2U Member Reply With Quote

Which hose do I take off? The coolant seems 'dirty'? Hmmmm...
PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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12th May 05 at 13:22   View User's Profile U2U Member Reply With Quote

easier method & better...

remove the header tank cap (on coolant bottle)

remove the fam temp switch (when facing the engine from the front of the car, its the bottom-left of the radiator), has a 2-wire plug attached & think a 18mm socket will do...

remove the top-hose from radiator to engine

then just flush it all through with a hose pipe till the water comes out clear

if you just remove the bottom-hose & flush/fill from the header cap, then loads of crap will still remain in the radiator as it wont flush through as while the engine is cold the thermostat is closed so will only flush about 1/3 or the coolant system...

doing it by removing the fan switch & top hose will flush through about 3/4 the system...

if you are also removing the thermostat, you can then flush the engine fully, then get a new sealing-ring from vauxhall (only 98p) as the 16v's dont use a gasket so-to-speak. but using some instant silicon-gasket-sealer aswell as the ring will be even better!

then just do it all back up & re-fill the coolant till its sorted!

[Edited on 12-05-2005 by PaulW]
Reepah
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Registered: 27th Feb 05
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12th May 05 at 13:41   View User's Profile U2U Member Reply With Quote

Where is the thermostat located? Pic would be great

Also, what mixture would you put back in?
PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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13th May 05 at 07:24   View User's Profile U2U Member Reply With Quote



thermostat is located bottom-left of this picture, where the coolant hose comes from the radiator to the engine (looks like an back-to-front S shape)...

remove the top-hose & unbolt the thermostat housing, will just pull off & give access to the thermostat..

3 torx-bolts hold it in...

 
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