Expansion Tank Ejector Valve

cold comfort farm · Nov 30, 2013

Hi all I am another victim of a discovery not burping. I have tried everything but keep getting air in the heater matrix and yes I have filled through the stat housing until it came out of the rad popped the caps on and continued filling the stat housing.
I am wondering if the "Expansion Tank Ejector Valve" is gummed up. How can I check. should I be able to blow through all three pipes blocking one and blowing through the remaining two (if you know what I mean)? I believe they can be cleaned but for less than £20 I will fit a new one if it is suspect.

Any advice is welcome. There is not much on the forum about this that I can find.

Thanks all
Stephen.

thebiglad · Dec 1, 2013

cold comfort farm said:
Hi all I am another victim of a discovery not burping. I have tried everything but keep getting air in the heater matrix and yes I have filled through the stat housing until it came out of the rad popped the caps on and continued filling the stat housing.
I am wondering if the "Expansion Tank Ejector Valve" is gummed up. How can I check. should I be able to blow through all three pipes blocking one and blowing through the remaining two (if you know what I mean)? I believe they can be cleaned but for less than £20 I will fit a new one if it is suspect.

Any advice is welcome. There is not much on the forum about this that I can find.

Thanks all
Stephen.

Hi Stephen, in view of the small cost I would replace the 'Y'-shaped pipe assy.

We had a TDi 300 Def a little while ago which was over-heating so I changed the rad, the water pump/thermostat etc and she still over-heated, and the coolant still stayed cold in the header tank, until I changed this Y-pipe. After that all was good - no over-heat and hot coolant in the header tank.

Dave

cold comfort farm · Dec 1, 2013

I was thinking this Dave but I am tight however I will get one tomorrow assuming the Chesterfield landy lads have one in stock.

thebiglad · Dec 2, 2013

cold comfort farm said:
I was thinking this Dave but I am tight however I will get one tomorrow assuming the Chesterfield landy lads have one in stock.

Can't be any tighter than me mate, but I must have my vehicles working properly or it drives me nuts !

Dave

cold comfort farm · Dec 2, 2013

Just dont like replacing things that are OK. I can blow through the thermostat pipe and it bubbles in the header i then blew through the one connected to the rad and it seemed free. I guess it works like an injector tee. As the water flows from the thermostat housing to the expansion tank it pulls the air from the top of the rad. (only guessing)

Expansion Tank Ejector Valve

cold comfort farm

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thebiglad

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cold comfort farm

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thebiglad

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cold comfort farm

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