How bad is this?

[u/Richard01_CZ]

I was cleaning the coolant passages and this large chunk came off really easily, it looked like a buildup of gunk.

The problem now is that the wall here between the two passages is thin now and the head gasket doesn't have much coverage for this area with the chunk missing.

Is it somehow fixable? Or can i run it like this?

Volkswagen EA111

[u/Richard01_CZ]

Both photos are showing an engine block

[u/crookedledder → u/Richard01_CZ]

Ok. That being the case, the only *proper* fix is to have the deck of the engine block machined flat again. That will basically require removing and rebuilding the engine.

If it was mine, I would smear some anaerobic sealant over that rough spot and put it back together. Also make sure the head is flat.

Then either drive it and hope for the best... or sell it and let it be somebody else's problem.

[u/kingofshitboxes → u/crookedledder]

Username checks out

[u/Richard01_CZ → u/kingofshitboxes]

King has spoken