[AT] Allis Chalmers ED40 injector pipes

[Dennis Johnson]

John,

I have worked with some hoses that are good for 20,000 PSI. Plus. I do not think that pressure containing is the main issue.
What may be an issue with hoses is the hose volume and hose expansion. Injectors put out small amounts of fuel, and there may be enough stretch or expansion in the hose where little or no fluid would get into the injector.
One reason for the steel lines is the small ID which keeps fluid column in the lines small enough where volumetric compression of the fluid and volumetric expansion of the tubing are not a significant issues.

Thanks
Dennis

Sent from my iPad

> On Feb 9, 2020, at 1:33 AM, John Maddock <agtronixjv at southcom.com.au> wrote:
> 
> Thanks Cecil
> 
> I wonder of hydraulic hose would stand the pulse or pressure?  If it was
> that easy, I suspect others would have done it.
> 
> Jv
> 
>> 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
>> 
>>> On 2/8/2020 8:07 PM, John Maddock wrote:
>>> Thanks James.  I'll pass this info on to Guy.
>>> 
>>> JV
>>> 
>>> 
>>>> 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 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.
>>>> 
>>>> 
>>>> 
>>>> Does the Standard 23C use a fuel piping thread that is currently
>>>> available?
>>>> 
>>>> 
>>>> 
>>>> John (JV) Maddock  Down Under AT List member
>>>> (agtronixjv at southcom.com.au<mailto:agtronixjv at southcom.com.au>); Can
>>>> anyone suggest where a new set of  injector pipes might be obtained for
>>>> said tractor? That tractor used  the UK-built Standard 23C engine, with
>>>> a
>>>> modified head fitted with  glow plugs. I have a friend who has modified
>>>> his FE35 by the addition  of glow plugs, but now the original pipes
>>>> don't
>>>> fit well, and leak.
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>>> 
>>> Be a good ancestor
>>> 
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> 
> 
> Be a good ancestor
> 
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