Can I use PVC in a coolant hose?

[johncworden at verizon.net (John C. Worden)]

As someone with plumbing knowledge, I would not use PVC. It is not
rated for hot water.  That's why there is CPVC.  On the car I would look
at copper or brass.  As for the EZ sweat fittings, just heat them up and
wick out the solder(with an old piece of wire, maybe frayed very slightly
and fluxed.)  The solder will run right up the wire, and out of the fitting.

John

At 03:30 PM 5/7/06, Timbo wrote:

>Yeah - for the long term - what I want to do is have the aluminum bung
>welded to the outlet on the head. that's the real way to go.
>
>I boiled another PVC T I had for about 30 minutes. It stayed fine -
>but I could compress it a little bit with a fork - it was slightly
>springy.
>
>My Home Depot has some interesting EZ-sweat copper joints. They have
>beads on the ends of the joints that are full of solder. These beads
>are copper, and on the outside like this:
>
>-----n--
>-----u--
>
>and inside the pipe is the solider.
>
>That bead would make the radiator hose connections perfect. I just
>don't know if the solder would mess everything up.
>
>--Timbo
>
>On 5/7/06, Eric Person <scirocco25@gmail.com> wrote:
>>well, im pretty sure that you can get the same pieces that you made from
>>pvc in copper or brass.  That might be a safer option for the long term.
>>
>>Timbo wrote:
>> > Yeah - but I like the GM one!!! Besides - I think I would have to swap
>> > to a digifant sensor - and every car I've found has those weird
>> > plastic outlet flanges on them with the spring clip crap.
>> >
>> > On 5/7/06, Eric Person <scirocco25@gmail.com> wrote:
>> >
>> >> 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
>> >> >> --
>> >> >> No virus found in this outgoing message.
>> >> >> Checked by AVG Free Edition.
>> >> >> Version: 7.1.392 / Virus Database: 268.5.5/333 - Release Date:
>> >> 5/5/2006
>> >> >>
>> >> >>
>> >> >
>> >> >
>> >> > --
>> >> > Timbo!
>> >> > Location: Glenside, PA!
>> >> > www.vintagewatercooleds.com/tech
>> >> >
>> >> > _______________________________________________
>> >> > Scirocco-l mailing list
>> >> > Scirocco-l@scirocco.org
>> >> > http://neubayern.net/mailman/listinfo/scirocco-l
>> >> >
>> >>
>> >
>> >
>> > --
>> > Timbo!
>> > Location: Glenside, PA!
>> > www.vintagewatercooleds.com/tech
>> >
>
>
>--
>Timbo!
>Location: Glenside, PA!
>www.vintagewatercooleds.com/tech
>
>_______________________________________________
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>
>
>
>--
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