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Bubbles in the header tank...

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Old 17-08-2008 | 03:40 PM
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Default Bubbles in the header tank...

Anything to worry about..apparantly they are quite large???
Old 17-08-2008 | 03:47 PM
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is it bubbling up through with the engine running? Either your drawing in air through a split hose (unlikely as the system is pressurised), or you have a blown head gasket/cracked block
Old 17-08-2008 | 03:53 PM
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Head gasket is brand new
Old 17-08-2008 | 03:58 PM
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Was the head checked for flatness?
Old 17-08-2008 | 03:59 PM
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Yes, was checked before fitting.
Old 17-08-2008 | 04:06 PM
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I'd get it down to a garage for them to do a 'sniff test', where they test for exhaust gases in the header tank. If it is deffo exhaust gases, then i'm afraid its head off time again
Old 17-08-2008 | 04:08 PM
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Originally Posted by Rich170
I'd get it down to a garage for them to do a 'sniff test', where they test for exhaust gases in the header tank. If it is deffo exhaust gases, then i'm afraid its head off time again
does sound like gasket failure to me,

p.s hows things in corsham? im often in sunny melksham as my dad lives there
Old 17-08-2008 | 04:14 PM
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Originally Posted by sheps
Anything to worry about..apparantly they are quite large???
When and how does it do it.

Mark
Old 17-08-2008 | 04:14 PM
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Originally Posted by mar_k
does sound like gasket failure to me,

p.s hows things in corsham? im often in sunny melksham as my dad lives there
I've recently moved to calne (the posh bit i should add), but I'm originally from neston nr Corsham

Its just the same as ever!!!
Old 17-08-2008 | 04:18 PM
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Rich170.
Its at the garage at the minute...they have run out of dye for the test.

Originally Posted by Mark Shead
When and how does it do it.

Mark
It does it when warm, thats all i know atm.
Its actually one of your customers doing the work for me...John with the Red Evo, i believe your doing a spot of engine building for him

Last edited by sheps; 17-08-2008 at 04:20 PM.
Old 17-08-2008 | 04:24 PM
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Originally Posted by sheps
Rich170.
Its at the garage at the minute...they have run out of dye for the test.


It does it when warm, thats all i know atm.
Its actually one of your customers doing the work for me...John with the Red Evo, i believe your doing a spot of engine building for him
discribe when and how, Most of the bubble problems I see are when the engine has been turned off and the engine then purculates and is nothing to worry about, Also the same goes if you remove the rad cap as you then let the pressure out you should not do that.

Mark
Old 17-08-2008 | 04:28 PM
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I will know for sure what is happening and when, later when i go and see the car, i shall reply then.

Thanks for your help
Old 17-08-2008 | 05:46 PM
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Hot water at over boiling temp will create bubles end of.
Don't just go and rip things apart, as it is most likely just dispelling any air that is in the system, it does this most effectively as it cools, so make sure the cap is on always.
Bubbles are perfectly normal, I would just use it and see if water disappears.
tabetha
Old 17-08-2008 | 07:29 PM
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I have this occassionally on mine, generally after a good run but once the engine is switched off. I recently had a sniff test done and all was good with the h/g
Old 18-08-2008 | 12:06 AM
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All sorted, dodgy thermostat (sp??)

Cheers for the replys guys
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