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Thread: Oil Cooler - Engine / Transmission

  1. 10th March 2009, 07:48 AM #1
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    Oil Cooler - Engine / Transmission

    Does anyone know if an aftermarket auto transmission cooler is OK to use with engine oil?
    What about the ATF hosing? It is a heavy duty (thick wall reinforced) hose.
    How much pressure goes through the original LR 3.9 V8 oil cooler pipes?

    I need to sort something out with my new engine as my radiator doesn't have an oil cooler built in.
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  2. 10th March 2009, 08:16 AM #2
    Bigbjorn
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    Go to one of the hot rod/speed equipment shops and tell them the filter number. They will supply an engine oil cooler kit. Transmission coolers run very low pressures. I would not trust a trans oil cooler with engine oil.
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  3. 10th March 2009, 09:22 AM #3
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    Quote Originally Posted by Brian Hjelm View Post
    Go to one of the hot rod/speed equipment shops and tell them the filter number. They will supply an engine oil cooler kit. Transmission coolers run very low pressures. I would not trust a trans oil cooler with engine oil.
    1: Not an option.
    2: Why would I need to tell them the filter number? All the fluid lines are factory fitted to the Discovery 3.9 V8.
    3: Trans cooler lines I have seen have considerable pressure.

    Thanks for your input though.
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  4. 10th March 2009, 09:33 AM #4
    81stubee
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    Could you use one off a P38?? They are a separate unit, about 500mm X 100mm X 40mm
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  5. 10th March 2009, 09:37 AM #5
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    Quote Originally Posted by BigJon View Post
    Does anyone know if an aftermarket auto transmission cooler is OK to use with engine oil?
    What about the ATF hosing? It is a heavy duty (thick wall reinforced) hose.
    How much pressure goes through the original LR 3.9 V8 oil cooler pipes?

    I need to sort something out with my new engine as my radiator doesn't have an oil cooler built in.
    Why not just get a hose made up and loop it back on its self till you can sort a cooler
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  6. 10th March 2009, 09:44 AM #6
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    Quote Originally Posted by rangieman View Post
    Why not just get a hose made up and loop it back on its self till you can sort a cooler
    If he just wants it to go, he could just take the cooler pipe adaptor off and put the filter on
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  7. 10th March 2009, 09:45 AM #7
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    Quote Originally Posted by BigJon View Post
    Does anyone know if an aftermarket auto transmission cooler is OK to use with engine oil?
    What about the ATF hosing? It is a heavy duty (thick wall reinforced) hose.
    How much pressure goes through the original LR 3.9 V8 oil cooler pipes?

    I need to sort something out with my new engine as my radiator doesn't have an oil cooler built in.
    It will handle the pressure fine its only 30-40psi, its the flow that's the worry
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  8. 10th March 2009, 09:47 AM #8
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    Quote Originally Posted by rovercare View Post
    If he just wants it to go, he could just take the cooler pipe adaptor off and put the filter on
    He could i guess , Having not seen the disco setup was why i said what i did
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  9. 10th March 2009, 10:30 AM #9
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    Quote Originally Posted by rovercare View Post
    If he just wants it to go, he could just take the cooler pipe adaptor off and put the filter on
    One of the cooler hoses comes out of the bottom of the timing cover .
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  10. 10th March 2009, 10:31 AM #10
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    Quote Originally Posted by rovercare View Post
    It will handle the pressure fine its only 30-40psi, its the flow that's the worry
    I am assuming the oil cooler is some sort of bypass arrangement, rather than full flow.

    Maybe I am wrong.
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