Hey guys, I just bought my first RX-7, a 1989 GTU. I've actually been a member of this forum for quite some time because my friend owns a 88 GTUs and I've done some work on him with it, but I've never posted until now. I read through the whole beginners section and was wondering about something. The guy I bought the car off said before turning the car off, rev in neutral to 3k rpm's to keep the engine from flooding. Is there something I could do to prevent the engine from flooding without me having to do this? Also, why does this make the engine flood? I've read through everything on how rotaries work and everything, but can't seem to figure out why the engine would flood if I didn't rev to 3k.

 

just the way it is jive turkey...rotary's tend to flood. install a fuel cut off switch

 

You've got an 89, no flood worries.

 

Dunno about having to rev to 3k....all I have to do is make sure mine heats up before I turn it off. If I take it down the street and back for example, and then shut it off before the engine warmed up.....it can be a real PITA to get it to start again after that.

 

since it's an 89 you can hold the gas pedal floored as you crank and it will fuel cut allowing you to start if it does happen to be flooded.

 

Congrats and best of lick with the FC. BTW the GTUs was only offered in 89-90.

 

you probably have leaky injectors. Remove them and take them somewhere to get professionally cleaned.

 

+1
Mine has gotten flooded bad only about 2 times. But it was cool when I finally got it started, smoked thick smoke for about 1 minute.

 

I have another question, I didn't wanna make it a new thread or anything though. I have an account over at thirdgen.org for my Trans Am that I've used for years and it uses Vbullitin too, for some reason, this forum isnt saving my subscriptions in my user cp. Anyone know why?

 

I think that feature is not working right now

 

Reving to 3k rpm and killing power to both the ignition and the fuel is just an extra step to preventing flooding. The science is that in the several rotations before the motor stop any extra fuel will be burned or dispelled.

This is not required in a functional car, and the s5 will have fuel cut on flooring (though you can flow so much that fuel cut doesn't help enough). It is a simple action that may prevent flooding.

If you had leaky injectors then the car would flood mostly as it sits - not while turning it off, so I feel as though that is an unlikely diagnosis.