93rotorhead

Ok, I just got my car back from the shop with a blown engine (13brew). It was a fresh rebuild before it went and It went under the knife for a e6k install ,started up taken down the road at 45mph and blew the front rotor and I mean no comp. at all. Anyway Im not pointing the finger at anyone I just need to know what happend so I can fix it and the do a rebuild. Im assuming that there had to be some kind of fuel issue here since the car really wasnt driven hard so do I need to start looking at primary or secondary or both, do I need to pull the rail or is there some kind of other test I can do? I have a wideband but I dont think thats going to help me now.

Thanks

classicauto

iTrader: (3)

Best, surefire way to tell is yoink the manifold, pull the rail with the injectors in it - unplug the coils so there's NO way it can run, and have a buddy crank it while you spray the injectors into a cup.

What seals were in the engine? I've had atkins **** do the exact same thing. Fresh engine, 200kms of breakin driving, cruising down the road at 80km/hr, in vaccum, lost the front rotor.

Absolutely no explanation. When we pulled it apart, we found the bottom of the seal had chucked a piece of itself....which boggled my mind.

EDIT: also, we sent the seals to atkins and Dan told me that it was clearly a case of detonation from hard driving and poor tuning. I could have ******* strangled him.......

93rotorhead

they were 2mm oem 2peice seals, Ill pull the rails should both of them spray or just primary?

93rotorhead

How can I tell if my secondary is spraying?

classicauto

iTrader: (3)

If its set to staging, just the primaries should fire. In your case is this happend in vaccum (and the stagging bar isn't set in vaccum) then the secondaries wouldn't have been on during the "event" anyway.

But to check them as well you can set the ECU to batch mode and it should fire all 4. You should just be able to peep down the LIM runners and watch the secondaries squirting, no need to pull the rail for them.

slo

iTrader: (1)

just send the injectors off to a cleaning service. This should be done whenever the engine is out.

My bet, if you blew the apex seals off the front rotor not under load and the motor was built right or original, is that they dropped something into the manifold when they had it off to do the wiring.

93rotorhead

Slo you could be on to somthing I could have drop anthing down the lim , I didnt do the rebuild but I did do the install ,who knows

crispeed

Did you verify ignition timing?
I've seen a lot of fresh installs where the trailing outputs were crossed.

RETed

You can't blow your engine if you were in little to no load on the motor due to bad fuel delivery.

Motor got taken apart an inspected?


-Ted

93rotorhead

Im running ls1 coils that he wired up so I guess i need to start lookin there.

slo

iTrader: (1)

absolutely easy to do, but when the car starts audibly detonating at 2K rpm or less people should know to back off and troubleshoot before starting to drive