Rocker arm shim

[MarkCan]

I spent couple of hours on the engine head today. I like to think that I came out ahead.
So far it looks like I’ll need 3 new intake valves, maybe 4. One that I’m on the fence with cleaned up pretty good but I can see small imperfections on the ground race. I’ll try to lap it and see.
I’m a bit unsure about the shims though. The one in the picture below looks to be the worst one. It’s magnified quite a bit here, nevertheless there are clearly two wear points from the rocker arm. Can I still use that shim?

[Benz Dr.]

I would get a new set of lash caps.  4.5 mm is standard but they come in thinner measures.

[MarkCan]

Thank you Dan.
I’ll start looking for a set. They are 4.5mm.
Are there any local distributors supporting this forum you can suggest?

[Pawel66]

Mark, this is how it looks at Mercedes here, prices in PLN:

A 180 053 19 52 SHIM (PODKLADKA KOMPENSACYJNA) 4.5 MM  79,39zł   Available at the dealer
Up to engine: 980 10/50 015834 980 12/52 033133 981 10/50 000343 981 12/52 002247 983 10/50 005464 983 12/52 009136

A 130 053 03 53  THRUST PIECE (ELEMENT NACISKOWY) 4.5 MM STANDARD 145,47zł   Available 72hrs (Germany)
As of engine: 980 10/50 015835 980 12/52 033134 981 10/50 000344 981 12/52 002248 983 10/50 005465 983 12/52 009137

I do not know if the shim needs to be of certain type (earlier or later) if you intend to change the rockers for the newer type (not colliding with the spring retainer). I do not know if one depends on the other.

[Benz Dr.]

Thank you Dan.
I’ll start looking for a set. They are 4.5mm.
Are there any local distributors supporting this forum you can suggest?

I'll look into that tomorrow for you. My supplier can deliver right to your door.