2006 Rx8 Shinka edition broke down help please

GySgtFrank · 02-08-2018, 06:49 PM

Another non-RX8 guy butting in. I have to agree with Fendamonkey on this one from what I have heard discussed by the RX8 guys. If your coils are the originals then they are the likely culprit. Coils are one of the big weaknesses on the RX8s and from what I have heard 85k is about where they start acting up. By all means change the plugs if you are unsure what condition they are in. You will have to de-flood the engine to get it restarted. Pull the plugs, disconnect power to the electric fuel pumps, and crank it for a bit to dry things out. Fuel pumps and filters are a possible failure point if the engine is not flooded. You would have to check what kind of fuel pressure is getting to the engine. Most shops that deal with EFI should be able to handle that for you.

You have to have a rotary specific compression tester to get any kind of a meaningful reading for engine compression. Not that it can't happen, but it is over diagnosed on rotaries. Other than the screwy compression tester there isn't really anything all that different about diagnosing a rotary versus a piston engine.

In your case injecting a little distilled water or Seafoam every now and then will help the carbon buildup once the car is started and warmed up. The automatic cars are prone to carbon buildup for the reason you stated.

JL1RX7 · 02-08-2018, 07:27 PM

First off, change plugs coils wires, oil. With the amount of miles on and it being an auto it is likely toast. 75k is about when they go if it has not been taken care of. So be ready for a rebuild. Rotaries like consent attention. Change oil every 3k, change plugs every 10k, coils every 20k. Then you will get 100k plus on an auto.

Kevin Landers of Rotary Resurrection is the home of the budget rebuilds on the East Coast.

Not sure if you bought a extended warranty on it, but if you did you might catch break on that.

02-08-2018, 06:49 PM	#1
GySgtFrank Professional Stick Poker Join Date: Feb 2011 Location: Stafford, Ks. Posts: 1,016 Rep Power: 16	Another non-RX8 guy butting in. I have to agree with Fendamonkey on this one from what I have heard discussed by the RX8 guys. If your coils are the originals then they are the likely culprit. Coils are one of the big weaknesses on the RX8s and from what I have heard 85k is about where they start acting up. By all means change the plugs if you are unsure what condition they are in. You will have to de-flood the engine to get it restarted. Pull the plugs, disconnect power to the electric fuel pumps, and crank it for a bit to dry things out. Fuel pumps and filters are a possible failure point if the engine is not flooded. You would have to check what kind of fuel pressure is getting to the engine. Most shops that deal with EFI should be able to handle that for you. You have to have a rotary specific compression tester to get any kind of a meaningful reading for engine compression. Not that it can't happen, but it is over diagnosed on rotaries. Other than the screwy compression tester there isn't really anything all that different about diagnosing a rotary versus a piston engine. In your case injecting a little distilled water or Seafoam every now and then will help the carbon buildup once the car is started and warmed up. The automatic cars are prone to carbon buildup for the reason you stated. __________________ 1988 N/A SE 2+2, dead stock and staying that way. 1979 SA22C stock? Not so much. http://rotarycarclub.com/rotary_foru...ad.php?t=15585

02-08-2018, 07:27 PM	#2
JL1RX7 Rotary Fanatic Join Date: Feb 2008 Location: Front Royal, VA Posts: 487 Rep Power: 18	First off, change plugs coils wires, oil. With the amount of miles on and it being an auto it is likely toast. 75k is about when they go if it has not been taken care of. So be ready for a rebuild. Rotaries like consent attention. Change oil every 3k, change plugs every 10k, coils every 20k. Then you will get 100k plus on an auto. Kevin Landers of Rotary Resurrection is the home of the budget rebuilds on the East Coast. Not sure if you bought a extended warranty on it, but if you did you might catch break on that.