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AuthorTopic: Hissing Header Tank  (Read 1255 times)

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Offline benbenukuk

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Hissing Header Tank
« on: October 23, 2008, 20:36:31 »
On my 1989 rrc when hot and switched off the header tank hisses from the cap, when I put the cap on from a defender it doesn't hiss is it supposed to hiss with the rrc one? It has lost water from the cap but I think that was down to not being on properly, Ben
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1989 3.5 v8 range rover classic with 3.9 efi system, 6'' lift, +5'' dampers, dislocation cones all round, 12500ib T-Max winch, steering guard, custom made rock sliders, light pod, custom made side exit exhaust, welded front and rear diff guards, full roof rack, 35/12.50R15 BFG Muds, CB Radio, Twin Batteries, Rear ARB Locker :)

Offline Range Rover Blues

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Re: Hissing Header Tank
« Reply #1 on: October 23, 2008, 21:18:25 »
It could be past it's best, but TBH they do breath out once the engine is under a few psi of pressure, then they breath back in when cold.
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Blue,  1988  Range Rover 3.5 EFi with plenty of toys bolted on
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1995 Range Rover Classic Vogue LSE with 5 big sticks of Blackpool rock under the bonnet.

Offline benbenukuk

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Re: Hissing Header Tank
« Reply #2 on: October 28, 2008, 18:54:44 »
I picked up a new land rover genuine cap for it yesterday cost me £41.05  :shocked:  but now the header tank doesn't hiss and is a better fit.  Ben
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1989 3.5 v8 range rover classic with 3.9 efi system, 6'' lift, +5'' dampers, dislocation cones all round, 12500ib T-Max winch, steering guard, custom made rock sliders, light pod, custom made side exit exhaust, welded front and rear diff guards, full roof rack, 35/12.50R15 BFG Muds, CB Radio, Twin Batteries, Rear ARB Locker :)

Offline hairyasswelder

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Re: Hissing Header Tank
« Reply #3 on: October 28, 2008, 19:00:54 »
Quote from: benbenukuk on October 28, 2008, 18:54:44
I picked up a new land rover genuine cap for it yesterday cost me £41.05  :shocked:  but now the header tank doesn't hiss and is a better fit.  Ben

OUCH  :'(
(better than the alternative tho  :dance: )
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'88 RR 3.5 efi, an on going project :o) evolving daily/slowly

Offline benbenukuk

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Re: Hissing Header Tank
« Reply #4 on: October 29, 2008, 19:34:09 »
Quote from: hairyasswelder on October 28, 2008, 19:00:54
OUCH  :'(
(better than the alternative tho  :dance: )
Yeah you are right there, I could have got a used one form eBay but wanted to get a new one so that it was a proper fit.  Ben
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1989 3.5 v8 range rover classic with 3.9 efi system, 6'' lift, +5'' dampers, dislocation cones all round, 12500ib T-Max winch, steering guard, custom made rock sliders, light pod, custom made side exit exhaust, welded front and rear diff guards, full roof rack, 35/12.50R15 BFG Muds, CB Radio, Twin Batteries, Rear ARB Locker :)

Offline Disco Matt

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Re: Hissing Header Tank
« Reply #5 on: October 30, 2008, 19:06:21 »
I had the exact same problem after my header tank split. The cap supplied with the 2nd hand one from ebay had a dried-out seal. Swapped back to the original cap and it's been fine ever since.
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