So a customer brings me a DJ core...

[silverbullet]

All original VW "Bruss" seals and factory Elring gaskets, but stamped R-C where the engine number should be. Flanged hex head bolts on the flywheel too, they look a bit Japanese to me.

Popped the heads to see whats going on and...



Well that explains why the oil smelled of petrol!

[cobblers]

Just needs a dose of slick-50 and send her down the road!

[SyncroMatt]

Tis but a scratch.....

[silverbullet]

Head studs appear all good and none broke so its halfway decent. Now to see if the case has been hammered to death by the shrapnel trapped in the squish clearance or if it just has a bent rod...

[silverbullet]

Suspiciously new coolant pump points to a prior failure and massive overheating of #1 piston, possibly from a failed injector making it go lean.
The aluminium has melted and vaporised, there are small deposits in the combustion chamber but no mechanical damage.



#1 on the left, no carbon.

[ajsimmo]

Possibly a hosing injector bore-washing?

Sent from my moto g(30) using Tapatalk

[silverbullet]

Classic ultra-lean burn under load, combustion temps leap up. The squish land has heated up, grabbed the cylinder, more friction, more heat and eventually the piston alloy melts and it has all gone down the exhaust port.