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Post by Deleted on Aug 21, 2015 10:18:49 GMT
John mentioned the high pressures created in the "Wheeler Dealer" thread so to avoid going OT, I've started a new thread.
This hose, pump to box, confuses me. On the JRW site, it shows the (expensive) hose with two different diameter hoses making up the component. On my car, the same change in diameter is visible.Is this some sort of deliberate restriction?
I've been thinking of getting a new hose made up as I don't fancy a high pressure explosion under the bonnet but am I going to run into pressure problems if I simply get a new HP hose made up?
What have others done?
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Post by Phil Nottingham on Aug 21, 2015 13:12:44 GMT
PM sent
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Post by enigmas on Aug 21, 2015 14:22:37 GMT
I've had a number of hydraulic hoses made up for various projects. If you go to a shop/business that makes up hydraulic hoses for trucks/earth moving equipment and the like ('Enzed' in OZ) you'll find that they have every type of hose and range of fittings to suit any hydraulic application. Not cheap but the best as this is their specialty. Provide them with your sample and it will be usually made up on the spot. There are 3 hoses. One is high pressure (Pump to PSB. Thinner diameter hose), the other is the return line from the pump, lower pressure. There is also a short gravity feed hose from the reservoir to the pump. * The high pressure line should have the correct hydraulic crimped hose fitting. www.enzed.com.au/ |
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Post by Deleted on Aug 21, 2015 16:55:02 GMT
Thanks. I've located a local supplier.
My steering box does not leak ATM and I'm wondering if I'm asking for trouble when I bleed the system after fitting the new hose although I thought I read somewhere that the system self bleeds.
It just seems a wise precaution to replace a HP hose that's 45 years old!
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Post by enigmas on Aug 21, 2015 22:40:02 GMT
Replacing an aged hose is sensible and good insurance especially if it handles high pressure as the PS does. Bleeding the system is no big issue but if you want to remove any load on the system, jack the car up under the front cross member to raise the wheels off the ground. Fill the reservoir, then start the engine allowing it to idle whilst moving the steering wheel from side to side. There's no need to open the bleed screw. That's it.
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Post by Warwick on Aug 22, 2015 3:02:46 GMT
This discussion has triggered a vague recollection regarding the hose from the pump to the box. It doesn't have rigidly reinforced walls so that it can absorb the pulses from the pump. Am I imagining this or maybe I'm thinking of another car?
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Post by johnwp5bcoupe on Aug 22, 2015 16:31:04 GMT
This discussion has triggered a vague recollection regarding the hose from the pump to the box. It doesn't have rigidly reinforced walls so that it can absorb the pulses from the pump. Am I imagining this or maybe I'm thinking of another car? Is that something I would need to mention to the company making up the new hose? As Phil has "liked" you I'm assuming that reinforced walls are not specified to avoid this pulsing action. The two halves are just straight forward Hydraulic Hose  (High pressure side) |
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Post by Colin McA on Aug 25, 2015 17:47:03 GMT
I looked at a local option when replacing mine. The offered solution was not up to standard because they struggled to get the correct fittings. They wouldn't make a new hose with old ends.
JRW was actually a reasonable price all considered but maybe you will get lucky with the local guys.
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Post by Deleted on Aug 25, 2015 18:08:36 GMT
That crossed my mind.How do you get a hose made up with identical fittings?
I haven't made any enquiries yet but I shouldn't think anyone would be happy to incorporate the old unions but I honestly don't know.
Might be easier to go down the JRW route as at least buying a bespoke item doesn't mean the car has to be out of action when the old hose is removed for a pattern.
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Post by johnwp5bcoupe on Aug 25, 2015 19:42:06 GMT
That crossed my mind.How do you get a hose made up with identical fittings? I haven't made any enquiries yet but I shouldn't think anyone would be happy to incorporate the old unions but I honestly don't know. Might be easier to go down the JRW route as at least buying a bespoke item doesn't mean the car has to be out of action when the old hose is removed for a pattern. The fittings were different the pump end so I made a longer insert for the pump, the company I used didn't stock the same union and their stock was very comprehensive! they wouldn't/couldn't use the old union  |
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Post by Welsh Warlock on Aug 25, 2015 22:34:05 GMT
That crossed my mind.How do you get a hose made up with identical fittings? I haven't made any enquiries yet but I shouldn't think anyone would be happy to incorporate the old unions but I honestly don't know. Might be easier to go down the JRW route as at least buying a bespoke item doesn't mean the car has to be out of action when the old hose is removed for a pattern. The fittings were different the pump end so I made a longer insert for the pump, the company I used didn't stock the same union and their stock was very comprehensive! they wouldn't/couldn't use the old union Similar experience when I had the new hoses made up. |
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(High pressure side)
