[AT] Allis Chalmers ED40 injector pipes

[Thomas Martin]

Hi Cecil,

I was actually responding to James' post that referred to a reinforced nylon Parker product.

There is no real substitute for injector pipes other than injector pipe "tube".

Heavy wall as it is, one can still feel the pulse, by holding a pipe between fingers...


Tom


> On 10 February 2020 at 02:44 Cecil Bearden <crbearden at copper.net> wrote:
> 
> 
>     At the time I wrote this I was thinking hydraulic steel tubing.   Hydraulic tubing fittings have a ferrule that clamps down on the tubing when tightened the first time.     Most diesel tubing has the ferrule brazed on to the tubing.
>     Cecil
> 
>     On 2/8/2020 10:46 PM, Thomas Martin wrote:
> 
>         > > 
> >         Nylon tubing no matter how highly reinforced it is, will not cut the mustard as injector pipes.
> > 
> >         Tom
> > 
> > 
> >             > > > On 09 February 2020 at 16:53 James Peck < jamesgpeck at hotmail.com mailto:jamesgpeck at hotmail.com > wrote:
> > > 
> > > 
> > >             Parker makes fittings specifically for pressurized diesel. The question is the thread standard used back then might not be available. Does anyone know the thread system used in the early 50s in the UK for fuel injection? Might be BSP.
> > > 
> > >             https://www.parker.com/Literature/Brass%20Products/Bul.%20DF-01.pdf
> > > 
> > >             [link] Fittings: Available in inch and metric sizes covering SAE, BSP, DIN, GAZ, JIS and ISO thread configurations, manufactured from steel, stainless steel, brass, aluminum, nylon and thermoplastic.
> > > 
> > >             Cecil Bearden AT List member, Oklahoma farmer, and Professional Engineer ( crbearden at copper.net mailto:crbearden at copper.net ); IIRC the tube fittings on the injectors and the pump are threaded into the pump casting and the injectors to adapt them to the tubing.  If you could determine the thread in the pump and injectors, then a hydraulic fitting could be used for the lines. Just a thought Cecil
> > > 
> > >             John Maddock AT List Member ( agtronixjv at southcom.com.au mailto:agtronixjv at southcom.com.au ); Thanks James. I'll pass this info on to Guy.
> > > 
> > >             With a thread gauge you could determine the size and pitch of all the ports. With an on-line catalog (Parker is one suggestion) you could identify all the fittings you need. Parker catalogs usually have info on making up tube assemblies. You would also need to order tubing and a tube bender. I bet you can bend up the set of tubes yourself. The steel tubing is the only thing that is difficult to ship. You could maybe pick that up at a local fluid power distributor. If you gave your list of parts to a local fluid power distributor they could probably cross it over to the similar items in the brands they carry.
> > > 
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