| Author |
Message |
    
John Graham (John)
| | Posted on Monday, April 01, 2002 - 10:58 am: | 
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anyone replace the automatic transmission cooler hose(s) with stainless braided hose ? I'm referring to the small sections of rubber hose that go from the front underside of the engine (oil pan) to the bottom of the radiator. Mine are leaking, and it looks like replacements are in the $100 range for each hose. I figure I'll check into replacing with braided hose if possible. Let me know if anyone has done this already and what you ran into. The only unknown to me is connecting the new hose to the existing metal lines. Thanks in advance, John ([email protected]) |
Tom P.
| | Posted on Monday, April 01, 2002 - 11:03 am: |
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John,
I'm planning to remove mine and have a local hose shop rebuild them (replace the seeping rubber sections). I have no idea when I'll actually do this, but hopefully it will be this month. I'll post details...
Tom P.
96 Disco |
Bill Bettridge (Billb)
| | Posted on Monday, April 01, 2002 - 01:01 pm: |
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John,
You could -but it won't really get you anything besides an ooh-aah factor. In some cases - could be worse depending on the tube compound of the hose. You want to sick with a hose that has a nitrile (buna) tube that hopefully has been modified for ATF. ATF is much harder on rubber compounds than is engine or hydraulic oil. The SS braiding, besides being for looks is only there to increase the working pressure of the hose. Trans lines run at relatively low pressure, so you don't need anything hp.
As tom pointed out, you can have a local industrial or automotive hose house recrimp new sections onto the existing metal lines - some do this, but not all.
Bill |
Rob Davison (Pokerob)
| | Posted on Monday, April 01, 2002 - 03:11 pm: |
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watch out!
i redid the hose in my RR with standard rubber hose becasue it was rotten and i only needed to fix on area and retain the flare fitting. it blew out on me !!
you must use high pressure line. when the torque converter locks up a surge of pressure will go thru the system. SS line would probably work if you can find the right flare fittings. i ussed hydrolc line it was good to 500 psi and has been holding up well for 6 months. i plan on replacing it whith OME piping when money allows later this summer.
rob |
Bill Bettridge (Billb)
| | Posted on Monday, April 01, 2002 - 03:19 pm: |
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Pressure is all relative - low pressure is defined as up to and including 500 psi (and higher in standard 5/16 to 3/8 id trans cooler hose) - you do not need high pressure 1000-3000 psi wire braided hose. Use it if it makes you feel good, but you don't really need it.
Bill |
Rob Davison (Pokerob)
| | Posted on Monday, April 01, 2002 - 04:15 pm: |
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my point is dont just use radiator hose or something shitty like that. use hydralic hose minimum or the SS braided stuff.
also,pressure plus the heat associated with the engine along with the tranny fluid may weaken the rubber hose.
this is an area you dont want to skimp or it could blow like mine did and you will loose tranny fluid fast, potentially causing a fire if it sprays on the engine, reducing braking by spraying on the wheel, or fry the transmission.
use the best hose you can get your hands on. why risk it if this is going to be permenent...
rd |
Tom P.
| | Posted on Monday, April 01, 2002 - 04:42 pm: |
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> use the best hose you can get your hands on.
> why risk it if this is going to be permenent...
Rob,
I was just implying that I'll have the hose shop build me new hoses using the old steel fittings and tubes. I'll be sure they know what they are doing first, but it should cost a fraction of the OEM hoses, for the same return.
Tom P. |
Rob Davison (Pokerob)
| | Posted on Monday, April 01, 2002 - 05:34 pm: |
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yep, i know what you mean.. sounds like a good plan. i replaced a metal section with a piece of hose.
good luck
rd |
John Graham (John)
| | Posted on Monday, April 01, 2002 - 06:04 pm: |
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thanks for all of the info. I also had a chance to check with a local performance shop about how this might work (replacing rubber hose between two existing metal lines). "Earl's" and another company make compression connectors for use with existing metal lines. Anyone know the size of the rubber hose and metal line ? I think I might give the Earls adapter's a try. |
John Graham (John)
| | Posted on Tuesday, April 02, 2002 - 05:40 pm: |
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Well, looks like it will be next week (or the next) before I can get to fixing my leaking hoses. Tom if you (or anyone) gets too this before I do, please post the size of the hose and metal line if you can. Thanks again for the info.
John '97 Disco I |
Scott (Scott_Bowden)
| | Posted on Tuesday, April 09, 2002 - 02:21 pm: |
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I went to an automotive air conditioning shop. They have the high pressure hose and braze on fittings with a swag machine to do it correctly. |
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