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BMW 3-Series (E90 E92) Forum
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DIY: E90 Oil Pan Gasket and Subframe Drop
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05-01-2016, 06:10 AM | #89 | |
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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05-14-2016, 10:13 AM | #90 |
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Wow, this thread is gold! Huge thanks to KrashFinatic and all of you with pointers, suggestions and experiences. Effthreeoh, I can definitely appreciate that support brace of wood with those bridle joints! I may have to steal that idea
So, further from the obvious engine mount choice, what else would be a good "while you're in there" replacement/upgrade? I'll most likely go with the 335is mounts as stated in another thread, but what else would be nice to replace/upgrade while there's access under here? |
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05-14-2016, 03:30 PM | #92 | |
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Even though you you had just put the pan bolts in they should have been replaced. I had a brand new bolt break when installing my alternator, so I don't trust reusing them. I feel your lucky they didn't snap upon reinstalling them.
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07-20-2016, 04:19 AM | #94 |
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07-20-2016, 01:27 PM | #96 | |
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07-21-2016, 03:56 AM | #97 | ||
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Aluminum is a soft metal and stretches when tightened or torqued. We have to remember the amount of stress engine mounts and the subframe endure. "Prevention is better than the cure"
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07-21-2016, 04:08 AM | #98 | |
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07-22-2016, 01:47 AM | #99 | |
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What I had noticed is they are easy to break, and newer bolts (the ones with hex head not e-torx) are specially made to break on stress. The torque spec on them are not very high either 28 Nm (20.6 ft lbs). It may have been fatiqued during tightening and then snap after a while. I suggest using torque wrench on them. The subframe bolts are not mentioned to be replaced in the Bentley from what I remember. They are hefty bolts and not torqued to yield. I reused mine other than the middle one at passenger side which was badly rusted in the middle section, making it thinner there. It may be an XI frame issue trapping water right there. |
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07-22-2016, 06:28 AM | #100 | ||
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07-26-2016, 05:25 AM | #101 |
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How did you guys manage to break free the oil pan from the block? I removed a total of 28 bolts from the pan - 10 passenger side, 9 driver side, 5 rear and 4 front. The power steering pump and trans lines are unbolted. I also completely removed the subframe as I'm having the turbos rebuilt and doing a suspension refresh all around. The oil pan is still firmly stuck. Do I wedge something between it and engine block and try to nudge it out? I'm hesitant to do this. I also tried to wiggle the pan off but the entire engine started swinging on the engine support which got me nervous something would give. I have two jack stands below engine for added safety sake.
Any tips? Car is E92 335i coupe automatic with 110k miles. Oil pan is leaking on passenger side, front and rear, the heaviest being rear. |
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07-26-2016, 09:36 AM | #102 | |
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07-26-2016, 02:05 PM | #103 | |
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07-26-2016, 04:24 PM | #104 | |
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I would try to pry it right between the gasket and the oil pan with a flat screwdriver. this way you could put more force to it while the melted rubber would be used as a protective layer for the engine block when prying it off. the old gasket got glued to the oil pan, it was very hard to scrape if off. I assume that this is exactly what happened to you. it got melted and stuck to both surfaces. |
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07-26-2016, 10:48 PM | #105 | |
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If you are sure you removed all bolts including the horizontal ones from bell housing into oil pan, you can try to tap (gently) the oil pan with a rubber mallet to break free the gasket adhesion. If you have cast metal oil pan, there should be a small pocket on both sides of the oil pan that can be used to pry it off with a pry tool. There may be something similar on sheet metal oil pans too. |
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07-27-2016, 01:42 AM | #106 | |
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07-27-2016, 10:09 AM | #107 | |
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just came across your previous post mentioning about those differences and that 3 bolts from the transmission into the oil pan. it would be nice to update the thread to point out those differences in the beginning. |
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08-08-2016, 12:54 PM | #109 |
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I used Permatex Black on my pan gasket. It's been 8 months and 10,000 miles and she's as dry as the day I put it back together. I highly recommend using sealant.
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