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 Header tank water up and down

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CaddyRage
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CaddyRage

Male Number of posts : 6348
Age : 38
Location : Ellington, near Huntingdon, cambs
Drives : T4 2.5tdi daily, 83 mk1 golf gti 16v, 92 mk1 Caddy project
Registration date : 2007-12-29

Header tank water up and down Empty
PostSubject: Header tank water up and down   Header tank water up and down EmptySun Feb 27 2011, 17:15

For a while now, i have had the water in my header tank rise to beyond the max mark when warm or when under higher rpm.

Due to this, i just have the bottle half filled.

Its strange as the water is'nt boiling at all and i see no leaks.

Since i had the fan switch fail on me at edition last year, i swapped to the low temp neuspeed thermostat and switch.


Any idea's?

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Header tank water up and down Caddy320
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james.

james.

Male Number of posts : 719
Age : 29
Location : soham
Drives : bmw 740
Registration date : 2008-07-02

Header tank water up and down Empty
PostSubject: Re: Header tank water up and down   Header tank water up and down EmptySun Feb 27 2011, 18:12

Not the pressure cap letting past is it? rather than pressurising the system its pushing air out through the cap and raising the level?
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CaddyRage
Admin
CaddyRage

Male Number of posts : 6348
Age : 38
Location : Ellington, near Huntingdon, cambs
Drives : T4 2.5tdi daily, 83 mk1 golf gti 16v, 92 mk1 Caddy project
Registration date : 2007-12-29

Header tank water up and down Empty
PostSubject: Re: Header tank water up and down   Header tank water up and down EmptySun Feb 27 2011, 19:23

james. wrote:
Not the pressure cap letting past is it? rather than pressurising the system its pushing air out through the cap and raising the level?

Well I've tried a different cap as I thought the same. I wonder if it could be the new header tank I fitted a while ago. I'll swap that and see how things go

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Header tank water up and down Caddy320
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james.

james.

Male Number of posts : 719
Age : 29
Location : soham
Drives : bmw 740
Registration date : 2008-07-02

Header tank water up and down Empty
PostSubject: Re: Header tank water up and down   Header tank water up and down EmptyMon Feb 28 2011, 11:12

Yeah never know may have been dropped and have a hairline crack somewhere.
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guy
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guy

Male Number of posts : 1689
Age : 51
Location : Littleport
Drives : MK 1, 2, 2, 3, 4, 4, T5
Registration date : 2009-09-15

Header tank water up and down Empty
PostSubject: Re: Header tank water up and down   Header tank water up and down EmptyMon Feb 28 2011, 20:40


Lee,

I know they are mk2 expansion tanks but i have about threee or four here if you want to try others.

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Header tank water up and down PbucketHeader tank water up and down PbucketHeader tank water up and down PbucketHeader tank water up and down Pbucket
'08 LWB T5 Transprter. '90 MK2 3dr 1300 in white. '95 Mk3 3dr VR6 Highline. '97 mk4 5dr gti 20vi n indigo, '00 mk4 3dr Gti 20v, '91 MK2 5dr GTI in black.
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CaddyRage
Admin
CaddyRage

Male Number of posts : 6348
Age : 38
Location : Ellington, near Huntingdon, cambs
Drives : T4 2.5tdi daily, 83 mk1 golf gti 16v, 92 mk1 Caddy project
Registration date : 2007-12-29

Header tank water up and down Empty
PostSubject: Re: Header tank water up and down   Header tank water up and down EmptyMon Feb 28 2011, 20:56

guy wrote:

Lee,

I know they are mk2 expansion tanks but i have about threee or four here if you want to try others.

Cheers man

I have spares, just wanted a nice new clean one without the switch in the top.

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Header tank water up and down Caddy320
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guy
Moderator
guy

Male Number of posts : 1689
Age : 51
Location : Littleport
Drives : MK 1, 2, 2, 3, 4, 4, T5
Registration date : 2009-09-15

Header tank water up and down Empty
PostSubject: Re: Header tank water up and down   Header tank water up and down EmptyMon Feb 28 2011, 22:17


Lol. Picky picky. !!

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'08 LWB T5 Transprter. '90 MK2 3dr 1300 in white. '95 Mk3 3dr VR6 Highline. '97 mk4 5dr gti 20vi n indigo, '00 mk4 3dr Gti 20v, '91 MK2 5dr GTI in black.
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