Hi Guys

Car is a 2011 Mayfair Cooper S

While accelarating on highway blew out a lot of water from exhaust(enough to cover whole back window)

Pulled over to check and there is no coolant in expansion tank

Nursed it back home and left the car in the garage overnight.

Next day car would start and idle very roughly for 5-10 seconds and stall, while starting there would be a lot of bubbles in coolant tank.

After stalling once the car wouldn't start again.

Did a compression test and all 4 cylinder came back okay at 150+ psi

Drained oil, no milky residue(car had just had its oil change the day before this happened, so it is understandble)

Pulled head and now found this



The white stuff is a bit oily, guessing this is water that has mixed with the oil?it is everywhere in the engine block

The head gasket seems fine though I have ordered a new one with some ARP head studs

The only place it could have been broken seems to be this


Anything else i should check for or should i just clean the stuff up and replace the gasket?

 

It looks like the corrosion is bad enough that the only recourse is to deck the block and the head. If you attempt to scrape the corrosion off, I doubt you'll get a good seal.

 

2011 ? Out of warranty ? Ouch.

 

Yep, no warranty on this one, i'm still confused as to where the leak is coming from, is it possible that small rubber torn there is the cause of this whole thing?