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Old 08-17-2007, 08:41 PM
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Transmission cooling line pressure 700r4

Guys, what would the cooling line pressure on a 700r4 be at operating temp., and what would that temperture be?
Also could you use rubber lines in some places in routing the lines. Maybe high press fluid hose. I am thinking from the first 6-8" of steel line, and the rest be rubber. Is this a bad idea?

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Old 08-18-2007, 07:26 AM
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Quote:
Originally Posted by grumpy1
Guys, what would the cooling line pressure on a 700r4 be at operating temp., and what would that temperture be?
Also could you use rubber lines in some places in routing the lines. Maybe high press fluid hose. I am thinking from the first 6-8" of steel line, and the rest be rubber. Is this a bad idea?
rubber hose is bad idea. IF you run rubber hose it must be a hydraulic type hose at proper rated PSI

Cooler line pressure can run 25 - 80 psi depending on the trans setup - shift kit and internal modifications
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Old 08-18-2007, 07:27 PM
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Thanks Crosley, That answers my questions. Its a tight place and to be able to work the lines around things would be tough. I wanted to use about 6-8" from the trans. and then work the rest with Hydraulic hose up to the radiator, then go back to steel. Thanks a lot.
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Old 08-22-2007, 06:34 PM
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From an auto-parts store power steering return line would be what to look for (should have the press & temp rating on the hose). Good auto parts stores will sell it by the foot on a spool. Make sure it is shielded from exhaust heat and inspect/replace it periodically.
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Old 08-22-2007, 08:34 PM
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Thanks Triaged, I didn't think of that. It is probably cheaper than hydraulic
hose too. I will check it out.
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