so a while ago my gsl-se stopped running on 2 rotors. the rear rotor exhaust port is black the front is the normal whiteish brown. front plugs are nice and brown, rears are black.



the car started running wierd and then just stopped running on one rotor. i pulled the engine today, all the apex seals are intact, along with the corner and side seals. the only thing ive found so far is that the corner seals are stuck in the holes. ive tried a bunch of different corner seals (to make sure i wasnt crazy) and none fit in the holes on the rear rotor?!?



the car was detonating for a long long time (afm adjusted wrong by p.o., switch with bad contacts in the fuel pump wires etc etc)



ive never seen corner seals stuck down before, wtf?



option #2 is something like an injector failure, but there were no clouds of smoke and no pools of gas anywhere



engine is a stock s4 na block, in a gsl-se with headers

probably wasnt injector falier if the plug are black. Is there just alot of carbon in the corner seal holes? try scraping them out with a screw driver and then see if they fit, otherwise maybe the rotors got bent fromt he deonation just by the corner seals somehow,..

heres some pics

and heres the wierd. the shiny part in the corner seal hole is where the spring sat. ive never seen a corner seal spring imbed itself into a rotor! the groove is about the same size as the corner seal

The rotors im using have marks from the spings like that in every hole, thought it was normal?... I dont really see anything wrong though.. did you try brand new corner seals? and the corner seals fromt he other rotor?

This is the same thing that happened to my 86 base, check the injector resistor block down next to the fuel pump relay by the headlight, rear rotor would not throw fuel, I went through everything I normally would, I checked timing, checked all of the plugs, changed wires yada yada yada. Then I broke out the book and started checking readings for all the sensors, when I got to the resistor block, it was bad, I jumpered the terminals and the rear rotor came to life. turns out when the block goes bad the motor will run on one injector, and it is the primary front one. After jumpering the resistor the motor ran fine and revs just like she was new.

can your corner seal spring fit in the groove? these are bigger than normal

I had an engine failure like this but it was my front rotor...didn't know what caused it so I put the engine back together....and that engine blew within 500 KM. Bearing failure. I guess when it pushed the corner seals into the front rotor, it bent the e-shaft.:(

thats a possibility, this engine has been revved very high, every one says they just bounce it off the rev limiter, but it doesnt have one

My bro's GSL-SE would go to 7k every now and then.