HS 2.8L TGV Cooling System Inline "Valve" - Defender Source
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  #1  
Old September 7th, 2008, 03:21 AM
DesertRat
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Bryan Barnes
95 D90 2.8TGV
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HS 2.8L TGV Cooling System Inline "Valve"

I'm hoping some of you guys out there with the 2.8L or the 300TDi may know the answer to my question.
In the cooling system, inline between the thermostat housing, the expansion tank, and the radiator there's
a little 3 way connector. It's kinda cone shaped on one side and flat on the other. Mine was leaking a little bit so I was trying to take it off to see if I could epoxy it to stop the leak. Of course, I broke off one of the hose barbs and instead of trying to find a replacement I wondered if I can just make a 3 way connector with pipe fittings and hose barbs, or if there is something special about the original? In the parts catalog they call it the venturi.
Any input, including the function of this little widget, would be appreciated.

Thanks
Bryan
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  #2  
Old October 24th, 2008, 07:53 PM
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RyanS
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Ryan
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Bryan - What did you end up doing with this part?

Mine started leaking a few weeks ago. So I took it off, and cut it apart to see what was inside. Answer is - nothing. The ports for the lines from the thermostat housing and radiator are tapered so there is some venturi effect. But other than that, I didn't see anything special about it. I didn't like the idea of having another possible failure from a bonded plastic part so I replaced it with a brass Tee. I haven't noticed any difference in operation.
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  #3  
Old November 2nd, 2008, 01:19 AM
DesertRat
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Bryan Barnes
95 D90 2.8TGV
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Hello Ryan,


I did what you did for a couple of weeks...a brass T and some hose barbs. Didn't notice
any difference at all in the temperature. I was ordering some other stuff from George
at Rovers Down South and I asked him about that part mainly out of curiosity. Believe
it or not he had them in stock, so I figured why not? Think it was about 30 bucks and included
all the hoses already attached. Part number is PCH117840.

Good luck
Bryan
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  #4  
Old November 3rd, 2008, 12:12 AM
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RyanS
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Ryan
'93 NAS 110
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Bryan - Thanks for the info. I thought about ordering a replacement, but I just didn't want that little piece of plastic to fail again. In reading through some of the Tdi forums, it seems to be a fairly common problem. I wonder if they provide it with the hoses because they know how easy it is to break it while installing the hoses.
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