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Thread: Detroit Unlocking

  1. 14th September 2012, 01:17 PM #1
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    Detroit Unlocking

    Anyone had any issues with their Detroit not wanting to unlock first up in the morning.

    Some tight manoeuvring is required to park my 101 so the locker gets a bit tight - normally the next morning when you drive out in the next morning some manoeuvring is required and you can normally hear it clicking unlocking itself as you drive out.

    This morning was different as it would not unlock and instead of clicking there was some loud banging solid jolts through the truck - when I finally got it out on squared up on the road all was OK - turning corners ok - just the clicking when unlocking when tight turning on bitumen.

    I suspect that when cold the locker is sticking a bit when large torsional forces are applied to it when manoeuvring.

    The locker has been in for 4 years ad has been quite quiet that whole time - maybe it just needs an oil change but is not really due. I currently do not use any additives in the oil and use normal diff oil - maybe a change of oil and some sort of additive might help.

    Open to suggestions.

    Thanks

    Garry
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
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    1957 Series 1 88" Station Wagon
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  2. 14th September 2012, 07:47 PM #2
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    Hi when I used to work for a ford dealer when we serviced the then F100 ambulances , we used to have to find a large bitumin car park and do lots of figure 8s the free up the Detroit lockers and after that they where sweet for a while Gary
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  3. 14th September 2012, 08:00 PM #3
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    I've always held the theory that the roughness that they occasionally and intermittantly develop when cold is to do with parking them "semi wound" while they are warmed up then they bind up when cold.
    Dave

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  4. 14th September 2012, 08:26 PM #4
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    Quote Originally Posted by Blknight.aus View Post
    I've always held the theory that the roughness that they occasionally and intermittantly develop when cold is to do with parking them "semi wound" while they are warmed up then they bind up when cold.
    Exactly - tight maneovring when getting home when everything is hot and cold in the mornings (still getting below freezing here). I have just parked straight in tonite so I will see what happens when I drive out in the morning but because I drove straight in I don't think there will be an issue.

    I was hoping there might be an additive that might help the operation of the diff lock.

    Thanks

    Garry
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon
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  5. 14th September 2012, 08:32 PM #5
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    ummm, you might want to take a minute and have a think about that.....

    if you want to try a cheap experiment on it a little ATF III or hydraulic fluid (hyspin 58 or 68) might help out.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    Tdi autoManual d1 (gave it to the Mupion)
    Archaeoptersix 1990 6x6 dual cab(This things staying)


    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
    If you think you're in front on the deal, pay it forwards.
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  6. 15th September 2012, 01:43 PM #6
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    Off topic but you drove past my work in Philip the other day it's a good looking unit I'm sure every one looking had no idea what it is I was stoked
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  7. 15th September 2012, 05:30 PM #7
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    No issues this morning but I had just parked it without backing and turning - so must be just loading up when I park it and is having trouble unlocking when cold the next morning. I will see what fresh oil does.

    Thanks for all the input.

    Garry
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon
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  8. 15th September 2012, 05:32 PM #8
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    Quote Originally Posted by 460cixy View Post
    Off topic but you drove past my work in Philip the other day it's a good looking unit I'm sure every one looking had no idea what it is I was stoked
    Where do you work - unless yesterday would have been when I was out and about looking for brake fluid for my RRS.

    Garry
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon
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  9. 15th September 2012, 06:37 PM #9
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    A.c.t brakes in Philip
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  10. 15th September 2012, 07:45 PM #10
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    Quote Originally Posted by 460cixy View Post
    A.c.t brakes in Philip
    In that case the week prior I was in there asking you for a quote for RRS brakes and rotors etc. Price was high (but was for brand name stuff) but price was about the same as quoted elsewhere in Aust - got the pads from one of your competitors for a few dollars more but only because they had them in stock. I didn't need rotors this time around.

    You provided all the new brake work for my 101 a few years back - master cylinder, booster, hard and flexible pipes etc - also for the master cylinder for my jag.

    Prices and service are reasonable and always check in with you guys when I am in the market for brake bits.

    Cheers

    Garry
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon
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