1989 Mazda RX7 Two Wheel Drive Automatic 160000 miles
I have an 89 RX7, 13B Rotary, approx 160K miles. No known prior engine problems. (Trans is a different story)
Anyway. I drove the car 2 hours to work this morning. About 50% interstate driving. Speeds between 45 and 80. I got to work at 8am and it was running fine. Nothing out of the ordinary. 5 hours later it wouldn't start. At first I thought it was just because it was cold outside. (Ever since it started getting cold outside it's been hard to start) My second thought was that maybe I flooded it. The heavy gas smell from the tailpipes was where I got that idea.
BUT. I did get it to fire momentarily with the gas pedal pressed a little more than half way down. It ran very rough and at a low RPM for only about 2-3 seconds and then died. This happened numerous times.
After a while, I couldn't get it to fire anymore no matter what I tried.
So. My thoughts are.
Injectors? (I don't really think so)
Spark Plugs? (I'll be checking them tomorrow)
I've heard of RX7s not wanting to start after sitting for a period of time. But 5 hours? What could have happened?
****NOTE : The engine did overheat 1 time when the thermostat neck blew out sitting at a stop light. That was remedied by the fabrication of a METAL water neck.
P.S. - Who's the genius that decided to make them out of plastic from 89-91?