Can I use PVC in a coolant hose?

[scirocco25 at gmail.com (Eric Person)]

Ive read that pvc is good up to 140 F, while cpvc is good up to 210 F. 
Im not sure at what pressures these numbers came from, but if it was me, 
I would switch to either copper with a t-fitting with threads for the 
sensor, or just tap the aluminum housing to accept the sensor.

You know that you can use the stock VW coolant temp sensor right?
Its not that hard to use easytherm.

Eric

Timbo wrote:
> Good idea. I'll try the pot o water thing right now and see...
> 
> On 5/7/06, DY Wong <sailingfc@dslextreme.com> wrote:
> 
>> I don't think the PVC will be good.  I think there is a PVC for hot 
>> water,
>> call CPVC.  This is made for hot water in your house.  House water from a
>> water heater is not boiling.  The coolant in a typical engine can easily
>> past the boiling point. And the underhood temps could be even higher.  I
>> guess one way to test this is take a piece of PVC and throw it into a 
>> pot of
>> boiling water for a while and see if it gets soft or changes.
>>
>> Good Luck.
>>
>> -Dick-
>> 78 Scirocco
>> Original Owner
>> 95 Passat GLX
>> Second Owner
>>
>>
>> Timbo wrote:
>> > I did this - thinking it was pretty frikin slick...
>> >
>> >
>> http://www.vintagewatercooleds.com/tech/Techtips/Timbotechnotes/EFI/pics/wir 
>>
>> ing1/CLT.jpg
>> >
>> >
>> > But - somebody said that the PVC won't stand up to the heat. Should I
>> > have used copper? Or should I just give up and tap the coolant outlet
>> > (which I don't want to do)
>> >
>> > --Timbo
>> >
>> > --
>> > Timbo!
>> > Location: Glenside, PA!
>> > www.vintagewatercooleds.com/tech
>> -- 
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>>
> 
> 
> -- 
> Timbo!
> Location: Glenside, PA!
> www.vintagewatercooleds.com/tech
> 
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