I’m sure the motor is shot but wanted to kinda get some input from the community. I was out doing some hard freeway pulls at night. On the way home, getting on the off-ramp as I decelerated the engine cutoff and would not start up.
Next day I’m messing with it and get it to barely start. I have to keep my foot on the accelerator to get it to start and sounds like it’s only running on one rotor. I go through make sure spark is good, I did not have a compression tester at the time but pulled plugs and listened for even noise as the engine turned. Noticed a decent puff of fuel coming out of the plug holes. Pulled upper intake off ran a bore scope down and found the rear secondary is dumping fuel when under pressure.
Injector is sent out for warranty. I get my rotary compression tester in.

Front Rotor:
42 20 20
*forgot to get correction for alt & rpm

Rear Rotor:
118 121 114
correction for alt & rpm 167 171 161

This is tested cold. Motor was rebuilt 6000 miles ago. 1993 FD Single Turbo, Power FC, no OMP, premix .5oz/gal, vehicle was tuned about 1000 miles ago. Oil Change and spark plugs done right before tune.

Should I get the injector back install it verify no leak, then try and start it to do a test when warm? Or just irrelevant at this point.

I’m sure no definitive answers will be known until the keg is torn down, but what could have possibly failed? And is there steps to prevent that in the future?

I am still pretty new to the workings of rotary engines and appreciate any input. Thanks for listening to my ramble.

 

sounds like a tuning issue(that caused an engine issue), who did the tune? it only takes one botched cell out of almost a thousand to cost a motor.

 

Use your scope to look at the part of the apex seal you can see through the spark plug hole. Maybe you'll get lucky and see something. I think the leading plug has a larger opening so you can see more.