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martin
Veteran
Date registered: Apr 2006
Location: Del Mar, CA Isles of Scilly, UK
Vehicle(s): 99 G500 95 E300D 95 R1100GS 06 K1200R
Posts: 297
| Rear Differential Leaking Oil ...
The rear differential on my '85 SWB is starting to leak. I know the cover gasket is old and probably knackered. I plan to renew the fluids and gaskets this holiday weekend.
My question is this ... there is a leak, or what appears to be a leak, where the steel axle tube is pressed into the cast iron gear housing. Is this possible and if so, has anyone repaired this type of leak succesfully?
Many thanks. Martin
 (G-wagen rr diff 640 by 480.jpg)
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 G-wagen rr diff 640 by 480.jpg (374KB - 11 downloads)
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dai
Expert
Date registered: Apr 2006
Location: Oregon USA
Vehicle(s): 300GD 300TD BMW R100RS Landini 80F
Posts: 2110
| Re: Rear Differential Leaking Oil ...
I would pull the cover off and reseal it first as you plan on doing before suspecting that other area. It looks to me like the leak may be above the axle line. My two cents. I hope that does it.
-Dai |
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AlanMcR
Expert
Date registered: Apr 2006
Location: US, CA, Los Altos
Vehicle(s): G300DT E300DT 230SL
Posts: 3500
| RE: Rear Differential Leaking Oil ...
Are you sure it's not a broken/loose vent tube or perhaps a leak from a shaft seal being blown back? In any case, a thorough cleaning is in order to help detect the true source. The cover doesn't show signs of a big impact, the gasket should be OK. |
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roughneck
Expert
Date registered: Apr 2006
Location: UK, Germany & USA
Vehicle(s): 270 cdi.300 GD 300 GE.lwb 300 GE.swb. Disco 2
Posts: 4398
| RE: Rear Differential Leaking Oil ...
Check your diff lock fluid level. |
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hipine
Date registered: Jul 2006
Location: US, CO, Bailey
Vehicle(s): 460 1980 280GE w. 617A
| Ditto vent idea
Looks to me like it's leaking out the breather. Verify that pathway is clear, whichever type of breather you have, and check the fluid level by opening the level plug and seeing if anything comes out. -Dave G. |
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mortinson
Expert
Date registered: Apr 2006
Location: Madrid, España
Vehicle(s): '98 G300TD LWB, '98 E300TD Saloon
Posts: 1355
| RE: Rear Differential Leaking Oil ...
I had a blast in my 463 driving at about 120/125 Km/h for two-three hours and on destination we went off-roading. At some point, I noticed that my fuel tank was covered in what appear to be diesel. I got very excited about having to drive back home in a flatbed truck with my G on it (thinking I had damaged the fuel tank) but then on close inspection, I discovered that it was transfer case oil. It must have obviously been overfilled and with the summer heat and the motorway blast must have expanded beyond the breather pipes. Oil is very scandalous and with a moderate amount it's possible the whole underneath og your G. I would clear thoroughly the area and check daily where the new oil is coming from. |
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