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Thread: Hi Newbie saying....erm...hi.....

  1. #11
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    Quote Originally Posted by David View Post
    mmmmmh. I would certainly suspect the fluid you used. How did they change it? Drop the pan as they should? How many litres did they charge you for?
    The box takes 12l. from dry, max 8l wet (but normally you are lucky to get more than 6 or 7 out). Mercon-V really is the oil to use. That means a lot of Mercon-V has been retained, mostly in the torque convertor, and mixed with your stuff.

    Rather than look for a Mustang specialist for your Rover 75 V8, why not go to a Rover 75 V8 /ZT-260 specialist; seems logical to me?

    P.S. I did recommend a specialist very able to work on the R75V8 in a PM to you. Take a look?

    David
    Hi David
    Thanks for the recommendation, I shall contact them. Re the oil change they put in 12l using a recirculating transmission oil changer

  2. #12
    Administrator Nich's Avatar
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    Quote Originally Posted by Xpuffin View Post
    ..............Cant find out much about the gearbox type or wether taking it to a Mustang specialist would be better as no one seems to be able to recommend anyone capable of working on the Rover 260 with the auto box.
    As David says you would probably be better looking for a R75 V8 specialist. If you put your location in your profile it will help to identify specialists near to your location.

    The auto box is a Ford 4r70w from memory.

    Get your questionnaire back to Tim to get full membership, lots of info on the site.

    Nich.
    Nicholas John Peter Tinker - # 484

    Manufactured on Tuesday 27th April 2004 @ 12.17.47.
    Commission Number: 24468.
    Brochure Model: M3 Tourer 4.6 V8 260PS.
    Specification Code: L01B.
    CICode: D1511.
    Trim Level: TL8.9 (M3).

    65th ZT-T 260SE to be made out of 115.
    11th ZT-T 260 SE in Pearl Black (PBT) out of 23 produced.

    Manufactured in the UK by MG Rover Group Ltd.


  3. #13
    #829 called 'Olive' David's Avatar
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    Quote Originally Posted by Nich View Post
    As David says you would probably be better looking for a R75 V8 specialist. If you put your location in your profile it will help to identify specialists near to your location.

    The auto box is a Ford 4r70w from memory.

    Get your questionnaire back to Tim to get full membership, lots of info on the site.

    Nich.
    Almost 100% certain its a 4R75W as used in the 2003 Mach-1, Nich. Not that its relevant to the problem! Whether it is a 4R75W or 4R70W, it MUST have Mercon-V, not any Dexron or normal Mercon even, else it WILL fail and very quickly, according to the American mustang "gods" on the forums. Worse still it would appear that all 12l of the proper fluid has been removed by changing the fluid in the wrong way.

    David
    Last edited by David; 01-07-2017 at 11:50 PM.

  4. #14
    #829 called 'Olive' David's Avatar
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    I guess may be best to have the whole lot changed for Motorcraft Mercon-V in the same way and HOPE it does it. I am in no way qualified to say that though, just thinking out loud. Consulting Brian (scooter) may be a good starting point? Do not drive it would appear sensible for now!

    Edit: There-after sue your garage!

    David
    Last edited by David; 02-07-2017 at 12:03 AM.

  5. #15
    Administrator Nich's Avatar
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    A post from 3 years ago:

    Quote Originally Posted by Manxmann View Post
    Isn't the autobox the 4r70w? If so you must use Mercon V, Dextron III is not a substitute for Mercon V but _IS_ for Mercon, using it will cause your box to fail.

    I have a 4r70w in my New Edge Mustang and went through this pain. Interestingly my stang is supercharged and the 4r70w holds up like a champ many owners saying they are stronger than the manuals. Did I read on here that the R75 couldn't be charged due to gearbox weakness?
    Nicholas John Peter Tinker - # 484

    Manufactured on Tuesday 27th April 2004 @ 12.17.47.
    Commission Number: 24468.
    Brochure Model: M3 Tourer 4.6 V8 260PS.
    Specification Code: L01B.
    CICode: D1511.
    Trim Level: TL8.9 (M3).

    65th ZT-T 260SE to be made out of 115.
    11th ZT-T 260 SE in Pearl Black (PBT) out of 23 produced.

    Manufactured in the UK by MG Rover Group Ltd.


  6. #16
    Registered User SCP440's Avatar
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    I have a freiend in Oxfordshire who specalises in Auto gearboxes, if there is a problem he will know what the issue is and can probably come up with a solution.

    Let me know if you want me to put you in contact with him.

    Steve

  7. #17
    #829 called 'Olive' David's Avatar
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    Looking on various forums, it would appear that Mercon V contains a special "friction modifier" which is necessary to allow the special friction clutch material to function properly in our boxes (4R70W or 4R75W). The slippage mentioned could well tie in with that description of what the 'V' does that Dexron or normal Mercon does not?

    David
    Last edited by David; 02-07-2017 at 02:54 PM.

  8. #18
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    Quote Originally Posted by Nich View Post
    Welcome along Jez. You might get some more information if you returned your questionnaire to Tim to get full access to the site, lots of information for you.

    Nich.
    I have sent an email to Tim requesting the questionnaire but as yet have had no reply.

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