Oil change in the differential
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Thread: Oil change in the differential

  1. #1
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    Default Oil change in the differential

    Hello.
    How do you unscrew the filler cap in the rear differential?

    Thanks Artur

  2. #2
    Administrator Nich's Avatar
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    Quote Originally Posted by ArturO View Post
    Hello.
    How do you unscrew the filler cap in the rear differential?

    Thanks Artur
    Welcome along Arturo, there's lots of useful information in the INDEX with some useful pictures.

    https://www.two-sixties.co.uk/mgoc26...ge-(with-pics)

    https://www.two-sixties.co.uk/mgoc26...l-Change-(DIY)

    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 114.
    11th ZT-T 260 SE in Pearl Black (PBT) out of 23 produced.

    Manufactured in the UK by MG Rover Group Ltd.


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  3. #3
    #829 called 'Olive' David's Avatar
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    Quote Originally Posted by ArturO View Post
    Hello.
    How do you unscrew the filler cap in the rear differential?

    Thanks Artur
    What you can also do is to change the fill plug for a CitroŽn / Peugeot one for easier replacement and removal afterwards. See:
    https://www.two-sixties.co.uk/mgoc26...tial-Fill-Plug

    Even one with discount here: https://www.onlinecarparts.co.uk/corteco-2098777.html

    David
    Last edited by David; 06-07-2019 at 11:48 AM.
    2005 Rover 75 V8 Connoisseur SE #829 called 'Olive'
    2003 Rover 75 Tourer 2.5 V6
    2 x 2000 Rover 75 Connoisseur 2.5 V6
    .. all LHD

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    As I was afraid, there are no shortcuts to unscrew the old oil filler cap.
    Thank you for your help!
    Arthur

  5. #5
    Registered User Les4048's Avatar
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    According to John Reid of Grantura Engineering use only Morris Lodexol XFS 80W-140 as no other oil has the additives required for this type of differential and also change it every 5000 miles. At the moment my diff refurbed by John has Castrol in it but I will be changing it as soon as I get the correct oil. The diff is now unbelievably quiet with no clonking
    Last edited by Les4048; 20-07-2019 at 08:34 PM.

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    I've heard that in Australia, car services use CASTROL SYNTRAX 80W-140. It is a country where they produce a differential. I hope they know how to service it.

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    Administrator Nich's Avatar
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    Have a look in the INDEX Artur.

    https://www.two-sixties.co.uk/mgoc26...hat-goes-where

    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 114.
    11th ZT-T 260 SE in Pearl Black (PBT) out of 23 produced.

    Manufactured in the UK by MG Rover Group Ltd.


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  8. #8
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    Quote Originally Posted by Nich View Post
    Welcome along Arturo, there's lots of useful information in the INDEX with some useful pictures.

    https://www.two-sixties.co.uk/mgoc26...ge-(with-pics)

    https://www.two-sixties.co.uk/mgoc26...l-Change-(DIY)

    Nich.
    Those are informative threads, Nich. Thanks

  9. #9
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    Arturo I did that this month,

    Jack rear of car up using my 3 ton trolley jack on the tow ring at centre of back underneath. Inserted axel stands under rear jacking points on the sills. Let jack down slowly so the stands take the weight. Lock the jack off just in case the axel stands dont like it. Placed my 2 ton trolley jack just to one side of the diff say 3 cm off centre to the left said as looking at it, Put a piece of 25mm thick wood across the jack lift pad so it allows the diff frame to take the strains and not the cast itself on its own. Jack the whole diff assemble about 8-10mm only.

    That allows the 29mm socket to engage with the bolt head which is really easy to undo like it wants to come out, That is due to the plastic washer. The above mentioned Cortico part ( a peugeot gear box drain plug) 22mm thread with internal ( female ) hex socket in middle 12mm. The new plug is quite loose sitting on my finder tip with a finger down the side but it engaged easily and the fingers twisting were enough to get the thread to engage then the 12 mm allen key sorted the rest. I used the supplied copper washer and then tightened down to firm not wrist breaking tight as your going into a casting. Gently let the 2 ton jack down and removed it from the scene and then used the 3 ton to lift and remove axel stands. Sorted. Time almost ten minutes.

    hope this helps and others dont remember a much easier way or I'll...??.

    Jez Marsh

    372 ZTT SE PBT
    M 260 MG

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