About 16 hours in and halfway through the procedure (bank 1 completed). I decided there is already a lot of threads covering this as well as some good videos on YouTube so I'm not documenting it.
I'm using the AGA toolkit to do it without removing the camshafts.
My e53 had really, really bad smoking issues with about 140k kms. I know there was a few threads on this site about other ways to fix the smoking or what really causes the smoking. I can say without a doubt that the stem seals are defiantly the cause. The (rubber) on the OEM seals in the engine are so hardened that they crumble and break when squeezed (one was cracked before I touched it, just the small spring holding it together) They have also been worn to a much larger diameter than the valve stems allowing the oil past.
I will post a couple of pics of my setup soon.
THIS IS ONE GRUELING JOB! #4 intake valve had me crawl right into the engine bay! Brutal! No wonder this is a $7000 job at the shop.
Anyone have any questions or tips, feel free.

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