Mutley Posted June 19, 2013 Share Posted June 19, 2013 Ok so it was time to change Diff oil in the 90 300tdi.... Like a good boy i did use EP90 GL4.....when i drained the front diff The oil was black in colour as i would expect..... when i drained the back this was a cloudy oil colour almost milky and felt more slimy than oily? At a guess i would say due to water getting in?...or is this normal if not what and where do i need to look to resolve this? Plus is There any way of flushing/cleaning the axel case out with out stripping it down as when i put my finger in the drain hole i could feel that the inside of the casing was coated in this milky slime? Any thoughts/suggestions or even simular experiance welcome Cheers Mutley Quote Link to comment Share on other sites More sharing options...
western Posted June 19, 2013 Share Posted June 19, 2013 sounds water contaminated to my, check the breather & hub seals are not leaking.it's not normal. Quote Link to comment Share on other sites More sharing options...
disco_al Posted June 19, 2013 Share Posted June 19, 2013 as above really. best way to clean it out is to either squirt some fresh oil in to flush it through, or just refill then change in 100 miles or so Quote Link to comment Share on other sites More sharing options...
Mutley Posted June 20, 2013 Author Share Posted June 20, 2013 Ok so if i'm going to check hub seals (may as well renew so i know for sure), how hard/easy is the job and how is it done? Any links to threads on this matter would be a great help. Cheers Mutley Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted June 20, 2013 Share Posted June 20, 2013 it's not normal. But like Tom Jones Syndrome, it's not unusual... Quote Link to comment Share on other sites More sharing options...
tacr2man Posted June 20, 2013 Share Posted June 20, 2013 Have you been thru deepish water ? if yes then is your axle breather extended upwards , or even not solid , as ofetn a hot axle casing will suck water inthru oil seals if the breather is blocked ! Quote Link to comment Share on other sites More sharing options...
Mutley Posted June 20, 2013 Author Share Posted June 20, 2013 Mmmm never knew that tacr2man will investigate this line of thought and report back, and the answer to your question regarding deep water is YES, tend not to make a habit of it but sometimes have no choice, as the area i shoot over is next to the river Trent and is prone to flooding at times (would say just above wheel arch level). I know it has breather pipes on so will check them out and if need be renew/extend them to a higher point. Thanks for the tip Cheers Mutley Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted June 20, 2013 Share Posted June 20, 2013 If you're doing deep wading more than infrequently (i.e.. more than just popping through an axle-deep ford now and then) then you need to check your axle oil regularly and probably change it more often than the standard timeframe. You should be able to see through the filler hole with a torch if it's gone milky and emulsified from water contamination. Remember seals are designed to keep oil/grease in, not water out! A lot of them only seal most effectively in one direction, which is why I tend to use the dual lipped variety. And breathers are important as tacr2man says - mine go to the top of the engine bay at the bulkhead. I figure if I'm that deep the cab and everything else is already full of water so water in the axles is the least of my worries. Quote Link to comment Share on other sites More sharing options...
Mutley Posted June 20, 2013 Author Share Posted June 20, 2013 Why is it never SIMPLE!?!.... I will take your advice Retroanaconda and check them more frequently when the area is in flood.... And these dual lipped seals you speak of, where can they be obtained?....As this would be more fitting for a supposedly "Go anywhere motor" Thanks again guys Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted June 20, 2013 Share Posted June 20, 2013 Google part number RTC3511 and you will find them. My advice is only repeating what's in the manual Quote Link to comment Share on other sites More sharing options...
Mutley Posted June 20, 2013 Author Share Posted June 20, 2013 Cheers Retro.... Just checked and it is saying this part (RTC3511) is for Defenders year '84 to vin number KA....... As i have a '95 300tdi (vin number MA.....) can this part still be used on my motor or am i out of the sell by date? Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted June 20, 2013 Share Posted June 20, 2013 As far as I am aware yes. I have used it in all the Defenders I've had which have had a mixture of early and late Defender and Discovery axles/hubs on. I don't believe the size changed. Quote Link to comment Share on other sites More sharing options...
Snagger Posted June 21, 2013 Share Posted June 21, 2013 The double lipped seal in question was introduced in 1980 for SIIIs with rationalised axles, which share the same bearings as Defenders and Range rovers. The seal is interchangeable with the standard seal used on the coil sprung models, and as James says, is much better at both keeping oil in and water and dirt out. Quote Link to comment Share on other sites More sharing options...
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