[Vwdiesel] Broken Radiator Nipple

[mark shepherd]

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
>>
>>
>>
>>
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