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Thread: Fairey Overdrive

  1. #1
    Join Date
    Oct 2014
    Location
    Northern NSW.Australia
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    1,520

    Fairey Overdrive

    Started rebuilding my overdrive today.
    Going good till I pushed the selector shaft from front to back, and tore the new small 'O' ring. Back to front is the correct way
    Got some Anti scuff paste from the UK, a while back.
    Where does it go ? and how should it be applied ?
    What is applied to the main shaft bush, that sits on the end of the gearbox.
    Thanks.

    whitehillbilly

  2. #2
    Join Date
    Sep 2008
    Location
    Serpentine WA
    Posts
    108
    Morning,

    Rebuilding the young blokes OD now, did mine a couple of years back. The O ring is a standard imperial fit, can't remember the size right now but i can check tonight. Bought a whole box of O rings from Aldi ages ago and one fits perfectly.

    I think the scuff paste is the Hi heat lubricant that goes between the main shaft of the overdrive, the coupling sleeve and the end of the main shaft on the gearbox. The box i am rebuilding right now was short on this lubricant, i think it had just dried out over the ages, and as a result the teeth on the mainshaft and coupling sleeve had worn away to thin razors. So essential to use it.

    The main shaft bush should go inside the end of the Overdrive main shaft, then onto the end of the gearbox main shaft. It can be a tight fit or not fit at all. With mine it pressed into the OD mainsheet not worries but i had to sand it down internally a thou or two to get it to fit onto the gearbox. With the young blokes there is no bush, the shaft is a poor fit onto the gearbox without it but too tight to take a bush, very strange. anyway I'm not loosing sleep over it as its ink anyway.

    Biggest issue is getting new shims. I have used precision shims.com.au. also just bought one of these, which I think was a good price, as for quality we will wait and see, got to be better than the mortar bomb tail fin arrangement i welded up last time around!

    Land Rover Series Gearbox Overdrive Mainshaft Nut Tool 600300 | eBay

    Cheers

    Ian

  3. #3
    Join Date
    Jan 1970
    Location
    Irymple, Victoria, Australia
    Posts
    2,720
    Regarding that castellated type nut for the shaft, Global Roamer have a normal hexagon type nut that they supply with their Roamerdrive units.
    From memory it is about 32mm across the flats, and they supply a long-reach socket to do the job.
    I would expect that they sell replacement nuts which would be a lot cheaper than purchasing a castellated socket for the job.
    It's not an off the shelf nut as the thread is a "special" size.


    Cheers, Mick.
    1974 S3 88 Holden 186.
    1971 S2A 88
    1971 S2A 109 6 cyl. tray back.
    1964 S2A 88 "Starfire Four" engine!
    1972 S3 88 x 2
    1959 S2 88 ARN 111-014
    1959 S2 88 ARN 111-556
    1988 Perentie 110 FFR ARN 48-728 steering now KLR PAS!
    REMLR 88
    1969 BSA Bantam B175

  4. #4
    Join Date
    Oct 2014
    Location
    Northern NSW.Australia
    Posts
    1,520
    Thanks Mick.
    All together.
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  5. #5
    Join Date
    Oct 2014
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    Few more pics
    Attached Images Attached Images

  6. #6
    Join Date
    Oct 2014
    Location
    Northern NSW.Australia
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    Last ones
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  7. #7
    Join Date
    Sep 2008
    Location
    Serpentine WA
    Posts
    108
    Looking very nice...

    And now to get it back on and forget that single damn nut that you know has to go on with the unit half hanging of but only remember it when all the other nuts have been done up and all you had left in the drawer was a quick drying gasket sealant!

  8. #8
    Join Date
    Oct 2014
    Location
    Northern NSW.Australia
    Posts
    1,520
    Ah. that one nut, that must be stated first.
    I had remembered that one.
    Will I though when i put it back on.

    whitehillbilly

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