Josh Posted August 4, 2009 Share Posted August 4, 2009 Hi all, im running a 300tdi discovery and could do with some advice please, Noticed today that there was some diff oil on the inside of the rear wheel. # After a quick google search and a consultation with the haynes manual i was directed towards investigating the hub seal/ bearing and breather. The hub sounds and feels fine when the wheel is jacked up and i rotate it, no excessive play side to side either. I then checked the breather pipe............. which was completly blocked so im going to assume a pressure build up caused the leak??????? Is it likley i will need to replace the hub oil seal? Thanks Josh Quote Link to comment Share on other sites More sharing options...
mskierki Posted August 4, 2009 Share Posted August 4, 2009 Hi all, im running a 300tdi discovery and could do with some advice please,Noticed today that there was some diff oil on the inside of the rear wheel. # After a quick google search and a consultation with the haynes manual i was directed towards investigating the hub seal/ bearing and breather. The hub sounds and feels fine when the wheel is jacked up and i rotate it, no excessive play side to side either. I then checked the breather pipe............. which was completly blocked so im going to assume a pressure build up caused the leak??????? Is it likley i will need to replace the hub oil seal? Thanks Josh Clean the breather, drain and replace the diff oil and you should be ok. You will probably see dirty oil probably contaminated with water. Also, make sure that no oil contaminated the brake pads. Quote Link to comment Share on other sites More sharing options...
Les Henson Posted August 4, 2009 Share Posted August 4, 2009 If the breather is blocked, then when the diff warms up the air inside expands and creates pressure that then pushes oil past the hub seal. The seal may not have 'popped', so clearing the breather may be all that needs doing. Apart from replacing the seals, your best bet is to clean it up and see what happens. Get a jet washer in there and blast all the oil out, but be careful not to get any on the brakes. Les. Quote Link to comment Share on other sites More sharing options...
tel Posted August 5, 2009 Share Posted August 5, 2009 I've just had this problem with mine the stub axle was worn where the seal rests on it so had to replace the lot Quote Link to comment Share on other sites More sharing options...
martinhollings Posted August 5, 2009 Share Posted August 5, 2009 and make sure its not brake fluid as piston seals can fail Quote Link to comment Share on other sites More sharing options...
Josh Posted August 5, 2009 Author Share Posted August 5, 2009 Thanks for the replies, Cleaned the breather and then drained the diff and replaced the oil this afternoon, looks like its fixed it. There so sign of leakage but after closer inspection of the brake pads they will need replacing. Thanks for your help!spot on as always. Quote Link to comment Share on other sites More sharing options...
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