DIY: 91 M5: Removing oil pan - BMW M5 Forum and M6 Forums
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post #1 of 5 Old 21st September 2018, 03:38 PM Thread Starter
jstokley
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91 M5: Removing oil pan

I have a 91 M5 with the 3.6 engine. Is it possible to remove the oil pan without removing the engine? If it is possible, what precautions do I need to do? There is no oil pressure and I want to check out the pump. Thanks for any thoughts.
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post #2 of 5 Old 21st September 2018, 06:24 PM
davidl
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I recently did this one my 3.8 to replace the oil pan gasket. In this case I was working on a lift. I have done this on jack stands as well. The transmission was in place. We used an engine support bar that mounted to the front engine lift point. This bar runs from fender to fender. An engine hoist would work as well. I then removed the bolts from the subframe and let hang down to provide more room to remove the pan. I had to remove a bolt from a steering component as well to let the subframe drop. There was something else in the way by the sway bar that had to be moved as well. It did take some finagling to get it back in.

David
95 M5 Red on Red cloth/Alcantara

Former '91 M5 Silver on Grey
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post #3 of 5 Old 22nd September 2018, 01:23 AM Thread Starter
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hi Davidl,

Wow, that was quick. Thanks so much for your response. I can see where dropping the subframe has advantages over pulling the engine. Now, I need to cobble-up an engine support bar. I'm assuming that the engine does not move vertically, so I ought to be able to leave connections such as coolant hoses in place. Also if the subframe is lowered, I should also be able to replace the engine mounts, one of which is pretty spongy due to oil.
Thank you again,

John
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post #4 of 5 Old 22nd September 2018, 01:29 AM
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I did lift the engine a bit but did not need to disconnect anything up top. I also replace engine mounts at that time. I second set of hands help when putting the subframe back in place. Also having the wheels removed.

David
95 M5 Red on Red cloth/Alcantara

Former '91 M5 Silver on Grey
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post #5 of 5 Old 8th June 2019, 03:41 AM
alpinerunner
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John (jstokley), I have to do this exact job due to no oil pressure. I just ordered an engine support bar. What did you find out about your oil pump?

1990 M3 - Weekend/HPDE
1991 M5 - Weekend
2003 M5 - DD
2012 X5 35D - Wife/family car
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