Ooops

[jdcorr]

I've just bought a replacement Lambda probe for the S6 have run into a bit of a problem when removing the old one. Namely, most of the thread has come away from the probe and is left in the downpipe.

My questions are:

1 - Is it likely that it can be re tapped and all will be fine.

2 - if not, does anyone have a spare downpipe for an AAN engined S6?

Will post a pic of the old sensor in a while. There is a very odd white coloured powder all over it.

[JasonS]

I expect it can be re-tapped, I must have been lucky as mine came out easily..

I replaced mine at 108K - it was white as well, I think this indicates that it has been running lean.

[Corey]

As long as the thread of the probe is damaged and left behind and not the down pipe then you will be fine cleaning out the thread.

Theres quite a few AAN engined urs's here, are we aiming to take over the forum?

[maRS2]

had the same problem on my RS2 I bought a tool to make new thread (don't now the name in english) and then easy to put the new one in

[Graham]

had the same problem on my RS2 I bought a tool to make new thread (don't now the name in english) and then easy to put the new one in

Here is a tap which will do our lambda sockets

http://www.sptools.co.uk/catalogue/?category=2

HTH
Graham

[jdcorr]

Here is a tap which will do our lambda sockets

http://www.sptools.co.uk/catalogue/?category=2

HTH
Graham

Hopefully I will be able to chase it out with one of them. Can anyone confirm what size it is? M18 x 1.5?

[Graham]

Thats the size you need. The only thing i worry about is cuttings in the exhaust before the CAT, one way would be to put a small magnet onto the tap while your tapping the hole then it will hold most of the swarf so as little as possible goes into the exhaust.
HTH
Graham

[Stick Insect]

I've just bought a replacement Lambda probe for the S6 have run into a bit of a problem when removing the old one. Namely, most of the thread has come away from the probe and is left in the downpipe.

My questions are:

1 - Is it likely that it can be re tapped and all will be fine.

2 - if not, does anyone have a spare downpipe for an AAN engined S6?

Will post a pic of the old sensor in a while. There is a very odd white coloured powder all over it.

1/ this has been covered well enough.
2/ at worst a new threaded insert could be welded into the down pipe, you shouldn't need a new pipe..
3/ this is normal and is a build up of lime and burnt deposits. If it is the colour of a digestive biscuit then it is the correct mixture. light grey or white could indicate a lean mixture.

HTH

David