[Vwdiesel] Broken Radiator Nipple

[James Hansen]

Yeah, if you're cool with melting it without it falling apart much, that's
better, then use the epoxy to stabilize it so it doesn't break off again. It
still won't have as much strength, it shears along the old break fairly
easily.
A pencil soldering iron with the tip flattened works well, and steal some
filler plastic cut in strips to weld with.
I have a "plastic welder" which is a fancy tipped soldering iron, and works
well if you have the same plastic to use as filler.
-j

> -----Original Message-----
> From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com]
> On Behalf Of mark shepherd
> Sent: Sunday, August 29, 2010 3:00 PM
> To: vw fans
> Subject: Re: [Vwdiesel] Broken Radiator Nipple
> 
> Option 3 ;o)
> 
>  is to heat  plastic until melted. Push together, pull apart slightly
> and
> then push back together. Stuff a piece of car valve threaded shank in
> if it
> will fit....
> I've given up with glues recently, and found if it melts; it will
> 'weld'
> 
> Mark
> 
> 
> ----- Original Message -----
> From: "James Hansen" <jhsg at sasktel.net>
> To: "'Dave Cook'" <davevw at yahoo.com>; "'Cabriolet Group'"
> <vw_cabriolets at yahoogroups.com>; "'Audi-VW-Diesels Group'"
> <Audi-VW-Diesels at yahoogroups.com>; "'VW Diesel Group'"
> <vwdiesel at vwfans.com>
> Sent: Sunday, August 29, 2010 9:05 PM
> Subject: Re: [Vwdiesel] Broken Radiator Nipple
> 
> 
> >
> > That sucks, Dave.
> > There is a cyanoacrylate based product that is supposed to fix that
> type
> > of
> > plastic.  The guy at a local supplier showed it to me last week, but
> don't
> > ask me to recall the name of it.  It's a cyanoacrylate base glue with
> a
> > special powder/fiber filler/binder that is supposed to be the secret
> > weapon.
> > It claims to be able to glue the hose barb back on a plastic rad
> tank,
> > etc,
> > one of the fixes proclaimed were indeed a plastic rad tank. I'll
> inquire
> > and
> > get back to you tomorrow if you don't like option 2.
> >
> > Option 2 would be a 2 part epoxy putty.  Devcon makes very good
> product,
> > any
> > of the ones like magic bond epoxy stick, etc would work.  Rough the
> > surface
> > area with a 60 or so grit paper, clean clean clean, then clean with
> > iospropal or methanol.  Wear gloves, preferably a disposable non-
> permeable
> > vinyl or prefereably nitrile.  I mix the putty, then use a smallish
> piece
> > and rub it on the roughened part keeping the part wet with alcohol.
> This
> > acts much like a primer and gets the epoxy well into the scratches as
> > alcohol is the solvent for this type of epoxy putty, and it's a
> mechanical
> > bond, so getting better surface contact improves the "bond".  Don't
> get it
> > too sloppy, and when the area is coated, hold the nipple against the
> old
> > hole, maybe use a small stick to hold it all in line.  Press a bunch
> of
> > the
> > stuff around the nipple to hold it into place, use lots, but leave
> room
> > for
> > the hose, smooth it out, you can use a bit of alcohol to make it easy
> to
> > smooth.  Very important to get the edges nice and smooth, it lasts
> forever
> > that way. Let harden, should hold.
> > Would it be meaty enough to allow you to run a small pipe thread tap
> > through
> > it and thread a nipple in that you could epoxy putty into place?
> > -james
> >
> >> -----Original Message-----
> >> From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-
> bounces at vwfans.com]
> >> On Behalf Of Dave Cook
> >> Sent: Sunday, August 29, 2010 1:07 PM
> >> To: Cabriolet Group; Audi-VW-Diesels Group; VW Diesel Group
> >> Subject: [Vwdiesel] Broken Radiator Nipple
> >>
> >> I was working on putting on my much-despised v-belts, and while
> trying
> >> to tighten the a/c belt, I smacked the nipple on the radiator that
> >> returns to the coolant reservoir.  Great.
> >>
> >> Anyone have this happen and find a successful way to fix it?
> (Besides
> >> a new radiator...)
> >>
> >>
> >> Dave Cook
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >> Vwdiesel mailing list
> >> Vwdiesel at vwfans.com
> >> http://www.audifans.com/mailman/listinfo/vwdiesel
> >
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> >
> 
> 
> 
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