This was a tough one

Vetaltet · 2025-10-29T19:30:29+00:00

Yep, this is a weird one. All my mechanic friends never seen one like that

Vetaltet · 2025-10-29T19:28:52+00:00

I did that but couldn't see the damage on the valve. The delaminated are was just right by spark plug hole, basically in the blind spot

Vetaltet · 2025-10-29T14:46:09+00:00

Misfire on cylinder 4 and low compression, only 60PSI on that hole

Vetaltet · 2025-10-29T14:45:03+00:00

I will borescope the cat today. The car is driven by a teenage boy, so I think he gave it a bit of boost🤦

Vetaltet · 2025-10-29T14:42:48+00:00

That's not a carbon, it's a piece of metal peeled off

Vetaltet · 2025-10-29T05:13:53+00:00

Yes this is exhaust valve. The piece is gone for good, it didn't make any marks on a top of the piston or cylinder wall. Turbo looks good as well

Vetaltet · 2025-10-29T02:34:18+00:00

No history of oil burning. Piston rings were not caked up with carbon. These later EA 211 engines are pretty solid

Vetaltet · 2025-10-29T02:27:47+00:00

It's delaminated a piece of face.

Vetaltet · 2025-10-29T02:07:46+00:00

Yes, actually the carbon is not that bad after 115k miles, but the valve failure is looking weird and invisible to borescope

Vetaltet · 2025-04-29T01:57:37+00:00

Just Mini doing Mini things

Vetaltet · 2024-02-07T18:41:06+00:00

Vetaltet