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Old 06-06-2018   #1
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engine coolant pipe leaking

Hi,
MY Mk 2 punto has a slight leake where the metal coolant pipe just under the manifold meets the rubber hose.
Is there an o ring or something I need to replace.The rubber hose seems to
be sealed very tight around the metal pipe,so cant understand why it is leaking,any help appreciated.
tony
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Old 06-06-2018   #2
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Re: engine coolant pipe leaking

Are you sure it isn't coming from the seal where the pipe goes into the back of the water pump and dribbling across to the hose join.
The o ring seal in there fails - few yoyos from a dealer.
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Old 06-06-2018   #3
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Re: engine coolant pipe leaking

I actually never thought of that,so where would I get the seal where the metal pipe joins the water pump?
tony
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Old 07-06-2018   #4
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Re: engine coolant pipe leaking

Quote Originally Posted by Brendan W View Post
The o ring seal in there fails - few yoyos from a dealer.

Tony, Just in case you have not noticed he said you get the seal from the Fiat dealer for a few euros.
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Old 07-06-2018   #5
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Re: engine coolant pipe leaking

If it is that seal you may notice coolant on top of the oil filter housing when the motor is cold. The seal is an o ring although I think there is a new shape but the one I got from the dealer was an o ring. Someone here measured it and found it to be a standard BS size but I can't find the post for love nor money.
The pipe pulls straight out from the water pump housing and the old seal may be flattened to the extent that you cannot see it in the groove on the outside of the pipe. Only the big hose needs removing to shift the pipe, the small one can stay and you'll need a new clip for the big hose. A bit of washing up liquid makes it easier to slip the pipe back in.
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Old 07-06-2018   #6
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Re: engine coolant pipe leaking

I have rechecked it today.
It definitely seems to be leaking where the rubber hose joins the metal pipe.
There may be a slight hole in the rubber pipe,i will remove the rubber pipe,cut it back a half inch and see if it still leaks,
tony
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Old 07-06-2018   #7
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Re: engine coolant pipe leaking

The pipe corrodes as well. Sometimes that's the issue and a new one is the only solution.
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Old 10-06-2018   #8
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Re: engine coolant pipe leaking

Yeah,it does seem to be leaking from the metal pipe.
does anybody know when you buy the new coolant pipe,do you det the o ring seal with the pipe????
tony.
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Old 10-06-2018   #9
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Re: engine coolant pipe leaking

I got one for my Panda 2010 1.2 from Shop4parts. Got other stuff too and found him very helpful with good prices and fast delivery. The pipe was less than half what my local main dealer wanted for it and is of good quality and fitted perfectly. The "O" ring came with the pipe.
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Last edited by Pugglt Auld Jock; 10-06-2018 at 18:53. Reason: Statement about "O" ring
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