Steering Rack Equalising Pipe

audifan said:
Nice work Robin. Slight concern about using flexi pipes on a steering rack as they may flex rather than apply the full pressure to the rack. Once flexed that is where the increased risk of contact occurs.

Would have thought they would have all the tooling needed to make tight bends in any type and diameter of metal pipe.

My feeling with flexi pipes is 3d printed mounting brackets would be required to try and locate them in as near as possible similar condition to the rigid pipes.
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Even flex pipes are pretty rigid with fluid under pressure in them, I think.
Mac.
 
Barts134 said:
Robin, My A2 is a 1.4 diesel. Would the fabricated link fit?
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So.

The key things to know are the sizes of the screw threads - which bizarrely are metric M10 x 1.25 at the pinion end with banjo bolts, and then at the other end with the tightly-radiused pipe and a union compression fitting with a small olive, they are 7/16ths UNF - so those are the fittings needed if it is possible to get 90 degree banjos for the 7/16th UNF end as well it would facilitate things, but those are apparently unavailable (at least with the supplier he is using?). I believe though that I have identified UNF fittings that would work used on Harley Davidsons, but these are reasonably niche, and the prices are surprisingly strong for quite small parts.

I never really got a clear answer of why it wouldn't be possible to do this with solid pipe but that - to my reasonably mortal shame - is because I was having real difficulties understanding him ; I've lived up here over 20 years and normally am reasonably able to understand and communicate but not on this occasion.

The pipework from end to end is 4mm hydraulic pipe with a flexible steel mesh outer. It would fit under the heat shield plate. It is rated to 2000psi, but I'm still havering on whether this is a viable solution. Plus - in non-stainless with VAT it has cost me just over £100 as a garage spare part - viable as a backup perhaps. He reckoned stainless would be around 140+VAT.

Put it this way. I believe it would hold fluid and transfer it better than a corroded out original pipe, but is what I have in my garage the perfect solution?
 
Robin,
Given that my car has been off the road now for perhaps a month I'm more than happy to pay the costs to get back it on the road.
 
Robin_Cox said:
So.

The key things to know are the sizes of the screw threads - which bizarrely are metric M10 x 1.25 at the pinion end with banjo bolts, and then at the other end with the tightly-radiused pipe and a union compression fitting with a small olive, they are 7/16ths UNF - so those are the fittings needed if it is possible to get 90 degree banjos for the 7/16th UNF end as well it would facilitate things, but those are apparently unavailable (at least with the supplier he is using?). I believe though that I have identified UNF fittings that would work used on Harley Davidsons, but these are reasonably niche, and the prices are surprisingly strong for quite small parts.

I never really got a clear answer of why it wouldn't be possible to do this with solid pipe but that - to my reasonably mortal shame - is because I was having real difficulties understanding him ; I've lived up here over 20 years and normally am reasonably able to understand and communicate but not on this occasion.

The pipework from end to end is 4mm hydraulic pipe with a flexible steel mesh outer. It would fit under the heat shield plate. It is rated to 2000psi, but I'm still havering on whether this is a viable solution. Plus - in non-stainless with VAT it has cost me just over £100 as a garage spare part - viable as a backup perhaps. He reckoned stainless would be around 140+VAT.

Put it this way. I believe it would hold fluid and transfer it better than a corroded out original pipe, but is what I have in my garage the perfect solution?
Click to expand...
Have a look at swagelok website
london.swagelok.com

London Homepage

Swagelok London Home Page
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North London valves
Great Yarmouth valves I think are the agents for 🇺🇸 company
 
Barts134 said:
Robin,
Given that my car has been off the road now for perhaps a month I'm more than happy to pay the costs to get back it on the road.
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If you can PM me an address I'll send over the two pipes as they stand - if it gets you back on the road again it'll be worth it. This is very much a work-in-progress ; I believe that the flexi pipes will work but I also believe that both conventional stainless steel 6/4mm seamless pipe in 316-grade and the required end connectors are perhaps more available and affordable than has appeared the case in the last 3 days.
 
Barts134 said:
Robin,
Given that my car has been off the road now for perhaps a month I'm more than happy to pay the costs to get back it on the road.
Click to expand...
Sorry to sound pushy, but I am going to be away from Tuesday for several days - if I'm going to get anything sent I will need an address by Monday early afternoon at the latest.
 
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