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

[Joshua Van Tol]

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.
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