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08-29-2019, 10:13 AM | #1 |
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Remove engine and trans to replace rod bearings?
Hey guys!
I need your input on my plans for the future. I want to replace the rod bearings in my 2008 e92 m3. I don't have a lift but I have quite a few jack stands, cherry picker and an engine hoist Do you guys think it will be easier to remove the engine from the engine bay to replace the rod bearings? My jack stands might not have enough height to do the rod bearings from under the car. Has anyone here have gone through the same route? remove the engine to replace rod bearings? |
08-29-2019, 10:16 AM | #2 |
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Purchasing taller jack stands is a lot easier than removing the whole engine to do a job that can be done on jack stands.
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08-29-2019, 10:29 AM | #3 |
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I can't imagine how it would be an advantage to do this. Rod bearings through the bottom with a lift takes 8-10h. Unless you've removed a whole lot of engines in your life it will take you longer just to remove and replace the engine.
The S65 has excellent access from the bottom, much easier than the S54. |
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08-29-2019, 10:30 AM | #4 |
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I can't imagine how it would be an advantage to do this. Rod bearings through the bottom with a lift takes 8-10h. Unless you've removed a whole lot of engines in your life it will take you longer just to remove and replace the engine.
The S65 has excellent access from the bottom, much easier than the S54. |
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08-29-2019, 10:46 AM | #5 |
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Removing the engine is a ton more work than doing the RB job from under the car. You can buy Quickjack now for around 1k and that will get you plenty of clearance.
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08-29-2019, 01:12 PM | #6 |
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Is it a six speed? If your gonna pull the motor/trans do the clutch and flywheel too. I wouldn't want to change the RB's motor in on jackstands or qj's. No side access and it'll be a drippy mess which you'll be laying in. More likely to make mistakes. It might take you 2-3x the hours to pull the motor but it would be less painful then laying on your back doing it.
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08-29-2019, 02:41 PM | #7 | |
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08-29-2019, 03:19 PM | #8 |
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I did mine on jack stands. I removed the subframe completely. It drips a little but as others said, it drips regardless.
Quickjacks will work but side access is limited. I used 5T jack stands and there is lots of room. Pulling the engine would be waaaaay more work. Cheers,
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08-29-2019, 03:35 PM | #9 |
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Doesn't make sense to remove the engine. Adds way too much work.
If you want steak, would you just buy the steak from a store and cook it or would you raise a calf yourself to get your own meat? There's always the third of option of going to a restaurant, ie. pay a shop to do it. I see that you're in texas, if I were you I would take it to Dean at Mporium and call it a day. |
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08-29-2019, 04:52 PM | #10 | ||
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on point, the s65 bearings are much easier compared to s54. you would be wasting a lot of time trying to remove the engine. |
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08-29-2019, 07:27 PM | #11 | ||
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08-29-2019, 08:24 PM | #12 |
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You probably won’t find any professional mechanics who don’t have a lift. Anyone with a lift and jack stands would choose the lift for this job. But those who have some skill, patience and care and would like to save $1000 to $1500 can take a little longer and suffer some inconvenience and do this job with the car on jack stands. With the money they save, they could buy a quick jack or max jax or inexpensive two post lift.
Last edited by pbonsalb; 08-30-2019 at 05:12 AM.. |
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08-30-2019, 12:09 AM | #13 | |
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It took me about 12 working hours start to finish. Longer than a shop would take, but it was my first time doing the job and I took my time. Yes, I would prefer to do it on a hoist. But I also was happy to save the labour and do it myself. Cheers,
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08-30-2019, 05:29 AM | #14 |
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If you do pull the motor, the job could quickly creep in size. Some would suggest that while you have access, the mains should be replaced too! Not to mention other internals. With the transmission out, what parts could be replaced easily (manual clutch, DCT pans, filters, clutches)? Sometimes limited access limits what you can do.
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09-08-2019, 03:24 PM | #15 | |
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The reason I wanna pull the engine out is so i can completely clean the engine bay lol... every single corner because I'm a little OCD.. The previous owner of my car did not clean the engine bay at all... So from what everyone's input... It's easier just to jack up the car high enough to replace the rod bearings right?? |
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09-11-2019, 08:32 PM | #16 |
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Yup, jack and jack stand will get the job done. Exactly what I did a while back. Good luck.
https://www.m3post.com/forums/showthread.php?t=1074496 |
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