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Re: [Shop-talk] Helicoil for plastic?

To: Jim Stone <1789alpine@gmail.com>, "shop-talk@autox.team.net" <Shop-talk@autox.team.net>
Subject: Re: [Shop-talk] Helicoil for plastic?
From: Jeff Scarbrough <fishplate@gmail.com>
Date: Thu, 20 Sep 2018 12:43:55 -0400
Delivered-to: mharc@autox.team.net
Delivered-to: shop-talk@autox.team.net
References: <9b2900da-aa55-745b-2df1-253222114135@gmail.com> <8CCFE1DA-CC5A-4CF4-90E5-FD1194B55AC8@gmail.com>
Why not use a HeliCoil?  They come in 8-32 and 10-32...among other sizes...

Jeff Scarbrough
Corrosion Acres, Ga.
On Thu, Sep 20, 2018 at 12:35 PM Jim Stone <1789alpine@gmail.com> wrote:
>
> This is not an exact answer to your question , but I have done similar 
> repairs - although non plumbing -  in the past with JB Weld. I cleaned the 
> female threads well and then worked just enough JB into the threads. I put a 
> light coating of oil on the male threads, screwed them together and then let 
> it set.  Unscrewing the first time can be a little difficult, but Iâ??ve 
> always been able to and have been able to reuse the threads.
>
> While Iâ??ve never done a plumbing repair this way, I canâ??t see why it 
> wouldnâ??t work. My inclination would be to put a thin wrap of Teflon tape on 
> the male portion and then just leave it alone and hope for the best if I ever 
> had to remove it.  Worst case, you are back to your original plan.
>
> Sent from my iPhone
>
> > On Sep 20, 2018, at 9:55 AM, Scott Hall <scott.hall.personal@gmail.com> 
> > wrote:
> >
> > Background: all the sink and shower faucets in the house are an 
> > unidentifiable manufacturer. The house was sitting long enough that they're 
> > all "sticky"--don't want to operate. They pull "up and down" or "in and 
> > out" to control water flow, then rotate to control temperature, not the 
> > "ball" type that pivot up to control flow, then swivel. I've never seen the 
> > kind I have before.
> >
> > They're all sticky (don't want to turn on/off), but the worst is the 
> > bathroom shower I'm using. I've pulled out the control knob several times. 
> > It is fastened to the control valve with a stainless screw into what looks 
> > like the phenolic valve. I suspect that I'm destroying the screw threads in 
> > the valve each time this happens.
> >
> > My initial plan was to cut into the wall behind the valve and just replace 
> > the entire assembly. Advantage: I know how to do that. Disadvantage: yet 
> > another distraction.
> >
> > However, maybe I can use a threaded insert to hold this handle into the 
> > valve for now. Googling "plastic helicoil" doesn't help much and I don't 
> > think I know the right vocabulary. Anyone have a suggestion for keeping 
> > this handle stuck to its valve and functioning as a shower for six months 
> > or so until its associated bathroom gets gutted anyway?
> >
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