MAN V8-900 CRM oil leaks

Anybody out have a clean V8-900 with NO oil leaks? I help on a pair of them and thru the years, NEVER been able to get ahead of the oil leaks.
Not the rocker covers but I suspect from the heads there the rocker pin is installed. And other O ring sealed fittings.
Each head is separate and at least 2 per side would have to be pulled to service the rocker shaft O rings. D%^&^*& I don't want to do that.

Was thinking synthetic oil does not expand O rings and could use some snake oil.
Any thoughts or history (magic dance) out there?

Those leaks were after a bath, then a run down the river and back. 1 hour max (key on, key off).

After a weekend hop. 16 hours maybe. The bottom of the pan is covered and the diapers in the bilge were trashed.

Were just on top of a DRY bilge. Owner is upset the engines seem to be leaking more and trashing his DRY and CLEAN bilges.

Those V-8s with all the hang on gear are huge, ER small & my head and my a%^^ (rear) are wide.
Need a pill (for me) & snake oil for the blocks.

After the rocker shafts are pushed into place, the top head bolts pass into the head and thru a notch in the rocker pins. There is not much or any play on that shaft after assembly.
The oil bypass spring cover is torqued into place. It does not move. same factory paint unbroken means that cap has not moved. The only thing these two leaks have in common is it is sealed with a O ring.
Thanks for the thought, but I don't think anything is moving.

In the pictures, and more between the heads, are O ring leaks. We have used the required synthetic oil always. Never push the hours between service. It's the same on both engines. AND, they run perfect.

An example illustration; fuel and oil filters O rings usually swell a bit when in contact with fuel and oil. I'm thinking because of a non-petroleum oil (synthetic), the seals are not swelling any.

Running out of ideas before I pull off an experimental head. I really do not want to do that.

There is no Man rep up here.
Let me more correctly ad to that; There is NO MAN mechanic up here that is trusted or not on a (s)hit or black list.

I have already inquired about this problem with my (remote) MAN support guys. They offered the part numbers for the tools and O rings. I'll ask (kick) them again for any factory issues. They usually do offer tips like that but this time nothing. Also, They did not offer the factory tips on the bell housing gasket issue MAN had. That's why a kick may be necessary on my next comm with them.
I was hoping somebody else had/has been here before I started kicking.

My customers have dealt with that s^%&* in St Aug. I don't send my enemies to those DS's at Lambs (another new example just last week).
I have not heard anything bad about the shop in Savannah (Thunderbolt?) and that could be a thought, but a long hike.

I'll probably have to do it myself, all alone, again.

Rip off is not financial. Ripoff #1 is the condition of the equipment when the job is finished. I should not have to correct all the supports and hangers when he leaves. NOR have to clean up the mess in the bilges and decks.

Rip off is financial. Ripoff #2 when I have to pay the guys phone time while he gets instructions from some other guy. Constantly running up to the tool store to get his next special tool that the guy on the phone just told him about.

Rip off is incomplete. Ripoff #3 when a new traveling tech reports that my computer has failed. Then I discover his un-licensed software in his laptop is out of rev to our computer. Oh, he still wants his money for showing up.

These are just the Supposed MAN guys.
I can write a book on Lambs.