radiator changed....and leaking: MC2 10valver

[LL - NY]

The sensor should be easy to access, it's on the engine side of the radiator
(not the condensor side). The bad thing is it's all the way at the bottom,
and it's cold out.

On Mon, Feb 8, 2010 at 2:38 PM, hayes myers <hayesmyers at gmail.com> wrote:

> Thanks for lots of great ideas.  Looks like will have to yank it
> out..although without the AC condensor etc I have lots of room in there now
> :)..and all new hardware with thread anti-seize should make it not so bad a
> job... unless i can just pull out the sensor!
>
>
> On Mon, Feb 8, 2010 at 1:10 PM, Joshua Van Tol <josh at spiny.com> wrote:
>
>> That sensor isn't a taper fit, so teflon sealant (either tape or paste)
>> won't do much good. Anaerobic sealant (such as offered by permatex) or some
>> other gasket goop would work, applied to both sides of the gasket that goes
>> under the sensor. Alternately, the gasket might be damaged. Silicone will
>> also work, but get the surfaces clean and dry, and only use a tiny little
>> bit. Smear it on with your fingers, and spread it very thin.
>>
>>
>>
>> On Mon, Feb 8, 2010 at 11:46 AM, LL - NY <larrycleung at gmail.com> wrote:
>>
>>> I can't recall if the sensor fitting is in the aluminum or the plastic on
>>> the 200 rad. If the plastic, DON'T go crazy tightening it, you may end up
>>> buying yet another radiator. And FWIW, if in the aluminum, I don't recall
>>> which is softer, the brass of the sensor or the aluminum of the radiator.
>>> IOW, DON'T OVERTIGHTEN.
>>>
>>> Sadly, you probably will have to drain out the coolant (at this point,
>>> drain
>>> out the sensor, it's gotta come out anyway, and you only have to drain
>>> until
>>> there isn't any drippage from there) and try teflon pipe tape or teflon
>>> pipe
>>> sealant (but then you'll have to wait for it to cure). Just make sure
>>> that
>>> there are no frayed edges on the tape that could break free. That ought
>>> to
>>> do it. And, if the sensor has a gasket, you probably will want to use a
>>> new
>>> one.
>>>
>>> HTH,
>>>
>>> LL - NY
>>>
>>> On Mon, Feb 8, 2010 at 11:47 AM, hayes myers <hayesmyers at gmail.com>
>>> wrote:
>>>
>>> > Swapped in new rad/hoses etc. Have a leak coming from the temp sensor
>>> on
>>> > the
>>> > rad... Think we tightened maybe not enough... ANyone use anything to
>>> help
>>> > seal this? I have a new gasket on there...  Grabbing a 29mm to crank it
>>> > tighter today/tomorrow..just wondered if there are any BTDT wtih this
>>> rad
>>> > sensor leaking.
>>> > _______________________________________________
>>> > quattro mailing list
>>> > http://www.audifans.com/mailman/listinfo/quattro
>>> > http://www.audifans.com/kb/List_information
>>> >
>>> _______________________________________________
>>> quattro mailing list
>>> http://www.audifans.com/mailman/listinfo/quattro
>>> http://www.audifans.com/kb/List_information
>>>
>>
>>
>