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Thread: R380 5th gear

  1. 19th May 2011, 07:02 PM #41
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    Quote Originally Posted by Ian Ashcroft View Post
    Hi this is fairly typical of an R380 even the later 'L' boxes, this brg is obviously stressed so do not be tempted to replace with a cheap alternative, DO NOT remove the oil pump from the housing, if you take out the wrong screws and end up with the back plate off it is virtually impossible to replace without a new gasket and LR don't supply these. Yes we do supply but better you don't need one. Ian Ashcroft
    Ian, I usually replace the oil pump and oil slinger/ ferrobestos bush every time I replace the 5th brgs, I agree about disassembling the pump, not a good idea

    Timken are OE aren't they?

    JC
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  2. 20th May 2011, 01:07 AM #42
    Ian Ashcroft
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    R380 5th gear!!

    Hi the two R380 rear support brgs are RHP, I would replace both, the oil ring is usually Carbon in the R380 and is prone to cracking, don't know progress but do know Dave is working on a replacement made from 'fibre?' not exactly sure what matl. Regards Ian
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  3. 20th May 2011, 02:29 AM #43
    ashtrans
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    we are making the FTC4991 oil feed rings from a laminate called 'Tufnol whale', the blanks are water cut then CNC turned,

    Dave
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  4. 20th May 2011, 06:58 PM #44
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    Quote Originally Posted by ashtrans View Post
    we are making the FTC4991 oil feed rings from a laminate called 'Tufnol whale', the blanks are water cut then CNC turned,

    Dave
    Thanks Dave, sounds like an endangered species.....

    Sorry I was also wrong, I have been using RHP, not Timken.

    JC
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  5. 25th May 2011, 05:35 AM #45
    ashtrans
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    this thread got me thinking, this mainshaft rear support bearing oftern fails, can we get a bigger one in there ?

    this arrived today from SKF, ID is the same, OD and thickness are bigger but I think we can make it fit with a little machining in the ali housing, new on the left, genuine on the right :



    this may be a useful mod for those that run a tuned TD5 or tow a lot or have a heavy overlander,

    Dave
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  6. 25th May 2011, 06:36 AM #46
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    Dave, a quick Q.

    On those g/boxe that come through with that bearing failed, how many do you think have been running ATF vs how many running an MTF ?
    Or is it purely an overload failure ?
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  7. 25th May 2011, 02:40 PM #47
    ashtrans
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    usually MTF94,

    typically from a tuned TD5 or 2.8 TGV

    Dave
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  8. 25th May 2011, 03:03 PM #48
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    Great idea Dave, keep us posted!

    JC
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  9. 25th May 2011, 08:16 PM #49
    slug_burner
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    Quote Originally Posted by rick130 View Post
    Dave, a quick Q.

    On those g/boxe that come through with that bearing failed, how many do you think have been running ATF vs how many running an MTF ?
    Or is it purely an overload failure ?
    You've done it now. The ATF brigade will be onto you
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  10. 25th May 2011, 09:15 PM #50
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    Quote Originally Posted by slug_burner View Post
    You've done it now. The ATF brigade will be onto you
    I know, I should know better but I just can't help myself
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