Rod bearing replacement video

[Helmsman]

Bumped into this. Nice and interesting!

[R3dliner]

great DIY. Is this you? SYT_Shadow

[Helmsman]

Originally Posted by R3dliner

great DIY. Is this you? SYT_Shadow

Not me mate, just enjoying! Yeah, would be interesting to see if its one of "our" guys.

[SYT_Shadow]

Originally Posted by R3dliner

great DIY. Is this you? SYT_Shadow

Yes, it's my brother and I plus Tom (who is on the forum). The car is Tom's.

I linked the video to the DIY thread in my signature

Hopefully this helps visualize the process!


I was skeptical of the idea of recording it because it takes around 8h, but Tom wanted to take a shot at it and did all the editing!

[Helmsman]

Originally Posted by SYT_Shadow

Yes, it's my brother and I plus Tom (who is on the forum). The car is Tom's.

I linked the video to the DIY thread in my signature

Hopefully this helps visualize the process!


I was skeptical of the idea of recording it because it takes around 8h, but Tom wanted to take a shot at it and did all the editing!

Good work SYT, thanks! Not that I plan to do this myself but still really interesting for an M3 fan.

[SYT_Shadow]

Originally Posted by Helmsman

Good work SYT, thanks! Not that I plan to do this myself but still really interesting for an M3 fan.

Glad you enjoyed it! The insides of the engine are very pretty, I always enjoy opening the S65 up!

[Helmsman]

Originally Posted by SYT_Shadow

Glad you enjoyed it! The insides of the engine are very pretty, I always enjoy opening the S65 up!

I didn't realize the required precision including different lube for shells and bolts etc, I hope my planned shop do! (will make sure they do...). Also interesting the way the rod was frozen/broken a part in order to keep it absolute tight. Certainly wouldn't take my baby to a shop that never done it before, plenty of shit that can go wrong if not carefully performed.

[BayE30]

no need for plasti-gauge with new rod bearings?

[SYT_Shadow]

Originally Posted by Helmsman

I didn't realize the required precision including different lube for shells and bolts etc, I hope my planned shop do! (will make sure they do...). Also interesting the way the rod was frozen/broken a part in order to keep it absolute tight. Certainly wouldn't take my baby to a shop that never done it before, plenty of shit that can go wrong if not carefully performed.

yes, the rods are beautiful

I found them for the first time when my brother and I did the E46 rod bearing DIY. I studied this in material science as a minor during Engineering and was sooo impressed to find it in the S54! and the S65 as well of course

[SYT_Shadow]

Originally Posted by SFCM3

no need for plasti-gauge with new rod bearings?

This was the 5th time I've done the job. I don't feel the need to plastigage multiple sets as I always use the same BE bearings.

I documented how to plastigage in the DIY and will do it if the owner of the car feels the need, but I won't do it just for the fun of it.
This is my thought process:
-All these cars have survived OEM bearings for many miles. So their clearances are relatively normal or they would have blown already
-BE bearings are all measured to make sure I get the right ones
-Plastigage is not a highly scientific measurement, it is more of an extra check

If it was an engine rebuild with new rods/crank then plastigage would be insufficient anyway

[BayE30]

Originally Posted by SYT_Shadow

This was the 5th time I've done the job. I don't feel the need to plastigage multiple sets as I always use the same BE bearings.

I documented how to plastigage in the DIY and will do it if the owner of the car feels the need, but I won't do it just for the fun of it.
This is my thought process:
-All these cars have survived OEM bearings for many miles. So their clearances are relatively normal or they would have blown already
-BE bearings are all measured to make sure I get the right ones
-Plastigage is not a highly scientific measurement, it is more of an extra check

If it was an engine rebuild with new rods/crank then plastigage would be insufficient anyway

IC, i was just under the impression that all new bearings had to be checked against the crank. But i hear where you are coming from.

[thkfast]

Holy smokes, I was considering having my local mechanic do this. I figured you just dropped the oil pan and replaced the rod bearings.

Now, I don't think I ever want to break that seal. Ever!

[admranger]

Originally Posted by thkfast

Holy smokes, I was considering having my local mechanic do this. I figured you just dropped the oil pan and replaced the rod bearings.

Now, I don't think I ever want to break that seal. Ever!

It's a super straightforward process. I've done it 3 times. Lefty loosey, righty tighty. Easy peasy.