 | Home > Technical > leak between gearbox and transfer box - oil straming out |
 
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| diesel_jim Member Since: 13 Oct 2008 Location: hiding Posts: 6092   
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That's the oil seal in the transfer box unfortunately.
Only way to cure it is to remove and replace. PITA isn't it! |
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1st Jul 2014 6:11am |
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| praetorian Member Since: 01 Jul 2014 Location: Newcastle Posts: 6
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Yup, I agree. I suspect the seal may have been damaged when re-assembled. most likely by hanging the transfer box on the output shaft while you have a breather or even just nudging it when it was aligned.
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1st Jul 2014 9:13pm |
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| EMPI748 Member Since: 15 Dec 2012 Location: Penicuik, Midlothian Posts: 50  
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Thanks for the replies, pulled them apart tonight, cant see what one has been leaking.
Only thing was when i removed the lower bolt (next to the hole it was leaking from), loads of oil came out where the bolt was, at least a liter or so. Is that normal? I drained it before i removed it last time. Is it possible it is oil being forced down the thread of the bolt? Planning on starting it tomorrow to see if it leaks from the gearbox seal, have the transfer box on threaded rod so should be easy enough to draw it back on for a bit of testing.... Few more pics after i took it out. The white lumps are RTV from when i separated them  Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge |
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1st Jul 2014 9:59pm |
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| praetorian Member Since: 01 Jul 2014 Location: Newcastle Posts: 6
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Yes oil should come out of the bottom hole on the front of the box as this is directly into the oil cavity. My money is on the input seal. However I've used rtv professionally for years and the only white stuff I've come across is household silicone, which isn't really up to the job.
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1st Jul 2014 10:06pm |
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| EMPI748 Member Since: 15 Dec 2012 Location: Penicuik, Midlothian Posts: 50
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Thanks for that, ordered new seals last night, should be here tomorrow, so will swap them over and hope for the best.
Sealant is this: http://www.island-4x4.co.uk/silicone-seala...-6921.html |
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1st Jul 2014 10:13pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17372 
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Hylosil is white.
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1st Jul 2014 11:04pm |
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| munch90 Member Since: 26 Oct 2013 Location: guildford Posts: 3558 
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those are dry joints so you don't need any sealer on them
one or more (cant remember ) of the bolts are not blind so oil can leak round the thread so small bit of thread sealer or mid Loctite to seal threads in the second to last pic there is a black bit in about the 8 oclock postion is that just a lump of cr@p or a hole in casing I would give the both surfaces a good wire brushing and clean up and even a sandpaper rub to remove any old sealer and surface corrosion ( you don't want a lump of old sealer under the joint when refitting you can if you wish use sealer on the joints it does stop corrosion in the joint but not necessary as you have oil seals on bothsides I would not use the white stuff again looking how its broke up to small lumps ,if one of those bits get in a seal it will leak use a good silicone sealer like wynns rtv or Loctite rtv or any proper gasket rtv |
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2nd Jul 2014 6:01am |
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| dailysleaze Member Since: 23 May 2013 Location: United Kingdom Posts: 237
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Whilst the transfer box is off, run the engine in gear. You will see the output shaft of the gearbox spinning and will show whether this is what is leaking, as you say it appears pretty quickly.
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2nd Jul 2014 10:11pm |
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