joecool23120

-13B N/A 86' GXL-


About 30min ago i was at a stop light and i put it in gear and it just died. When i restarted it , the engien wouldn't rev past 3k, and when i went to move it in 1st. It was liek the motor couldn;t handle the load and the rpms crashed and died. I got it to move to the side of the road with the pedal floored but tje car was surging and barely made it before it. I start it up again, and rev it to 3 slowly and it will go past 3k to 4k was as far as i wanted it to go. but if started it will pulse at ilde then idle then died quickly. I started it and got under the hood quick to keep the gas on and it sounded kinda like it was missing or running on one rotor, there was also kinda noise to the rear like something going around inside(i'm thinking Apexseal). I tow it home and in the driveway it sounded like it was running on just one side of a rotor.

With that information said, What do the engine experts think it could be.



Anpother bit of info before i came to the light to stop, I had been at a toll booth and took off pretty good taking it to redline in 2nd then to 5k in 3rd to 80mph and i felt a surge or lost of power, but then it kept runnning fine once i put it in 5th for cruise at 70mph.

Any help is appericated, Places to have the engine rebuilt or how hard it woudld be to rebuild it. I am a mechanic and have rebuilt piston motors. I live in Richmond, Va


Joe

Mage

that happened to me almost the same thing (slower speed)........ New engine swap will be done soon.


Mage

WICKED INTENT

Ive heard nothing but good things about:
rotary performance-manassas VA.
Rotary revolution-Chantilly VA
KD Rotary- Nazareth, PA

Hope that helps..
WICKED

BIFFT2

who did it you, are you on first base or 2nd base?

joecool23120

i have been resaerching and foudn that peopl say you can;t get the car to run on one rotor. I would like it could.

Thanks for the shop locations and names.
But does anyone know from the description of how it runs and acts what could be the cause.
joe

joecool23120

more info. Just yesterday i put on the racing beat cat replacement pipe. It ran great all day yesterday night. I would think that not havign cats in the way woudl reduce a bit of the load on the motor.

joe

joecool23120

did a copression test on it and both front and back rotors came out to 90psi. on the standard compression tester gauge. Then i held in the pressure release on it and i got the 3 bumps. Not sure what i coudl be now.

Some had got to know.


Joe

DubbayoC

sounds like a sensor. check codes?

joecool23120

how do i check codes. I don;t have FSM.

SAiamNE

Do a search, there is someway to make a cheap homemade one or something..

pengarufoo

Check your AFM connector, and AFM itself if the connection is fine. Can try reseating it.

Can check TPS but unlikely to cause this.

Check ignition, make sure you are getting spark @ both rotors.

Check fuel injector plugs, make sure they are fully seated, get noid lights and confirm the primaries are getting a signal (testing secondaries is more difficult).

You can try pulling codes from the ECU to see if it knows whats wrong too. The major component of the engine management is the AFM so it's the primary suspect, then the TPS plays a large role in this primitive system. The corrections (intake temp and coolant temp) can make it run like **** but not usually this bad. Then like I mentioned above, the obvious things, fuel and spark, need ot be checked. You've confirmed compression so it's time to look at fuel, air, and spark.

pengarufoo

Check your AFM connector, and AFM itself if the connection is fine. Can try reseating it.

Can check TPS but unlikely to cause this.

Check ignition, make sure you are getting spark @ both rotors.

Check fuel injector plugs, make sure they are fully seated, get noid lights and confirm the primaries are getting a signal (testing secondaries is more difficult).

You can try pulling codes from the ECU to see if it knows whats wrong too. The major component of the engine management is the AFM so it's the primary suspect, then the TPS plays a large role in this primitive system. The corrections (intake temp and coolant temp) can make it run like **** but not usually this bad. Then like I mentioned above, the obvious things, fuel and spark, need ot be checked. You've confirmed compression so it's time to look at fuel, air, and spark.

pengarufoo

stupid site

joecool23120

Thanks pengarufoo for the info. The AFM is what my buddy with a FD was saying. I will check that in the morning. I'm pretty sure i'm getting spark out of my coils and to the plugs but i am questions the condition of the wires though. I had all the wires off and then put them back on and started it and for bout 20 sec the car started normal but then went back to running like crap and the engien shaking really bad and making weird noise.


Whats a noid light and where can i get one? I'm thinking the 2 sensors you mentioned(intake temp and water temp)
could be a cause. water temp most likely cause thrusday of last week it was running warmer tha the 1/4 up the coolant guage it was read little less that 1/2 . so i flush the coolant and put in new with some redline water wetter. After that the next and today its been running right at 1/4 up on the gauge like normal.


Thanks for the info very helpful. I will post back more feedback tomorrow once i check those the AFM. and plug wires.

Joe

joecool23120

bump

joecool23120

found my problem razorblade jamming the AFM half open- how that got in there i don;t know. but now i think i have the trailing plug wires hooked up wrong does anyone know the order. i don't have a FSM.

Joe

joecool23120

okay my car is now back to running like normal. I found a razor blade stuck in the AFM. how it got there I don't have the answer but i got it out. Then i had the plug wires hooked up backwards. found the correct routing and hook them up right. And now its back to its good ole self. Runs great.

Thanks to everyone who posted help.

Joe

blacksailsxx

The same thing happened to me, from a stop. 1st gear was good, 2nd gear the engine started vibrating like crazy so i put it in neutral and it died. Turned out i had a coolant leak in the number one rotor housing causing no compression. New engine. Sorry in advance if its that.