[Diy_efi] GM Fuel Pump / Tank Options

[J M]

I hadn't thought about the plastic fittings and
threading.  Being the same material they might not cut
threads.  If the tank was made out of thinner material
they would "cut" threads.

With a metal fitting you could just cut a hole and
thread the fitting in.  It should have an adequate
seal but using something like JB weld around the
outside just to make sure wouldn't hurt.

I kind of like the idea of bending plastic pipe with
sand in it.  If for no other reason then trying it to
see how it works.


--- Clair Davis <clair.davis at charter.net> wrote:

> Hmm... interesting.  I hadn't really thought about
> bending the plastic pipe,
> just using it for the straight runs with formed
> rubber/silicone/neoprene/whatever hose bits to make
> the turns.  That might
> give me some options on how to handle things,
> though.
> 
> With regard to the brass or polyethylene fittings,
> should I tap threads in
> to the tank before installing, or will the fittings
> cut their own threads
> and seal better that way?  I can see how the brass
> MIGHT cut it's own
> threads, but I'm guessing the poly fittings need
> threads to even start.  I'm
> guessing the pipe thread will be sufficient in
> sealing itself, correct?
> Would it be possible, or even necessary, to do a bit
> of plastic welding on
> the poly fitting to make it that much of a tighter
> fit?
> 
> Thanks for the ideas, folks...
> 
> Clair
> 
>


       
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