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90roy

Member Since: 21 Jun 2016
Location: Middlesbrough
Posts: 130

Transfer case output flange oil seal

I replaced the oil seal a month or so ago and it's leaking onto the handbrake again.
Is there any reason it should be leaking again?
Could a blocked breather mean that the box is being pressurised and blowing oil past the seal?
If so, where is the breather?

Thanks,

Roy 300tdi 90 1996.

10th Apr 2018 10:04pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17610

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

There is a breather, a black pipe with a banjo fitting onto the t-box.

It could also be wear on the sealing surface of the flange, a Britpart or other aftermarket flange manufactured out-of-round, worn bearings resulting in radial movement of the shaft, or a bent shaft.

10th Apr 2018 10:20pm

90roy

Member Since: 21 Jun 2016
Location: Middlesbrough
Posts: 130

Thanks,
Are the breathers prone to blocking?

Roy 300tdi 90 1996.

11th Apr 2018 7:01am

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17610

Axle breathers yes, but I've not heard of the t-box breather getting blocked before.

11th Apr 2018 7:19am

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