can I flush the heater matrix from under bonnet? - Page 3

Cymrudragon · 22nd January 2011, 18:17

Quote:

Originally Posted by Sting

I have not had the matrix out.

If coolant is leaking from somewhere around the matrix, I can't see it from the driver-side view.

If there are only two pipes connecting to the matrix, there must be a hole in the matrix somewhere I cannot see it. Is it common to get these in a heater matrix?

Cant say i have heard of one leaking but there is a first time there are 2 clips shaped like a ......w on both pipes up under the floorwell you have to remove thease for lossening the pipes then rmove the 2 clips pull apart and within the pipe-end is 2 "o" rings....the matrix should slide out .....if the rings have perished you will have to replace as well......dont forget that not to pull the 2 pipes out of the actual matrix as i have heard of someone trying to pull them out it comes with a x2- 12" pipes already atatched to the matrix.....oh and you can clap both pipes undder the bonnet not to loose to much coolent

VVC-Geeza · 22nd January 2011, 18:18

Quote:

Originally Posted by Sting

If I can get the matrix out I'll replace the O-rings.

Some time ago i asked if anyone could provide a part no for the O rings but unfortunately didn't get a response

Please post the no up if you find it.

Cymrudragon · 22nd January 2011, 18:29

Quote:

Originally Posted by VVC-Geeza

Some time ago i asked if anyone could provide a part no for the O rings but unfortunately didn't get a response

Please post the no up if you find it.

No part number as they come as a package with the matrix(Rimmers) i replaced my o-rings with some from a plummers merchant....

SEE HERE

http://www.rimmerbros.co.uk/Item--i-GRID001588

Sting · 22nd January 2011, 18:32

Quote:

Originally Posted by Cymrudragon

.....oh and you can clap both pipes undder the bonnet not to loose to much coolent

That is a BRILLIANT idea. My toolbox is a crescent wrench and a multi-tool, so I can't easily drain the coolant.

I didn't understand the bit about clapping pipes. They look to be aluminium and have adjustment knobs marked "L" and "R" where they are easily accessible under the bonnet.

What about getting a big bucket, a couple of corks or stoppers the right size and stopping the flow as I separate the pipes at the O-ring joint?

VVC-Geeza · 22nd January 2011, 18:35

Quote:

Originally Posted by Cymrudragon

No part number as they come as a package with the matrix(Rimmers) i replaced my o-rings with some from a plummers merchant....

SEE HERE

http://www.rimmerbros.co.uk/Item--i-GRID001588

Thanks,i think it would be wise precaution to replace them

Cymrudragon · 22nd January 2011, 18:41

Quote:

Originally Posted by Sting

That is a BRILLIANT idea. My toolbox is a crescent wrench and a multi-tool, so I can't easily drain the coolant.

I didn't understand the bit about clapping pipes. They look to be aluminium and have adjustment knobs marked "L" and "R" where they are easily accessible under the bonnet.

What about getting a big bucket, a couple of corks or stoppers the right size and stopping the flow as I separate the pipes at the O-ring joint?

....

Two rubber pipes entering the bulk head or anyweare befour that i clamped undder the header tank.....
http://www.the75andztclub.co.uk/foru...ead.php?t=7515

Quote:

Originally Posted by VVC-Geeza

Thanks,i think it would be wise precaution to replace them

Very true.....

Bernard LPG · 22nd January 2011, 18:53

Quote:

Originally Posted by Sting

I didn't understand the bit about clapping pipes. They look to be aluminium and have adjustment knobs marked "L" and "R" where they are easily accessible under the bonnet.

No, those air the pipes for the air-con coolant.

Sting · 22nd January 2011, 19:00

Quote:

Originally Posted by Bernard LPG

No, those air the pipes for the air-con coolant.

I had no idea I had air conditioning. I live in Ireland...

Cymrudragon · 22nd January 2011, 19:07

the 2 thin pipes are to the matrix

jn12 · 22nd January 2011, 19:10

Instead of flushing from under the bonnet i think it would just as easy to remove the matrix and give it a good de scale and flush. I have done two now and had no problems removing or replacing except getting the pipes back together can be a bit of pain.

Would recomend replacing the O rings, however i got away with it on the one in my ZT. The will be coolant loss and to risk soaking your carpets with OAT i would drain the system and have a small container to catch what comes out of the matrix pipes.

22nd January 2011, 19:07	#29
Cymrudragon I really should get out more....... MGZTT2.5 V6 190+ SE 2002 Join Date: Oct 2009 Location: Gilfach-goch Posts: 2,201 Thanks: 0 Thanked 8 Times in 4 Posts	the 2 thin pipes are to the matrix

22nd January 2011, 19:10	#30
jn12 Gets stuck in MG ZT SE 180 V6 Sports Auto Join Date: Dec 2006 Location: Newcastle upon Tyne Posts: 938 Thanks: 74 Thanked 37 Times in 36 Posts	Instead of flushing from under the bonnet i think it would just as easy to remove the matrix and give it a good de scale and flush. I have done two now and had no problems removing or replacing except getting the pipes back together can be a bit of pain. Would recomend replacing the O rings, however i got away with it on the one in my ZT. The will be coolant loss and to risk soaking your carpets with OAT i would drain the system and have a small container to catch what comes out of the matrix pipes.