spun bearing

[power=dsm]

here's my story

i bought a jdm engine got it rebuilt to spec . i put on a 16g 520injectors i removed the balance shaft put on some head studs and exhaust .

so 2000 km i'm still doing a nice and slow break in. i was driving one day and i gave the car some gas and shifted a 5000rpm. then i start to hear this noise so i pull over and open the hood, give the car some gas and i hear this load grinding noise.
so next day i bring the car to a shop that built my motor and they pull off my oil pan and you see my #1 bearing torn and stating to shed off metal shreds. i put in new bearings so i don't see how this happened. the turbo was new.

can anyone tell me how this happened i never even floored the car, was it just a defective bearing??? or did my 6 bold crank walk

thx for your help

 

[Ðawg]

Prolly a bad bearing.


--Scott

 

[Defiant]

Bad bearing, wrong clearance, or oil supply problem.

 

[jmc94gsx]

Were the mains align-honed?

 

[power=dsm]

they said the main bearing was fine


just that the bearing started to chip or get worn and it caused my rod to bend and get the crank damage

 

[Defiant]

"Bearing started to chip"....uh, okay.