My 85 which has been sitting for two long years, has now just decided to start up. We poured tranny fluid down the carb, and spray a hell of alot of starter fluid, or carb cleaner. The car runs well once it start heating up, but as soon as you take your foot off the gas peddle the ****** shuts off. Many people have said it has something to do with that carb, or is it that vaccum hose that does a 90 and then another 90. The hose that doesn't look like a vacumm hose. What could it be. I just need it to run for a least three months till I finish my other rex. Then I'm going to put a 350, c4 trans, shift kit, 370 hp.

 

GEEZ! Does a 350 fit?!

Do you warm it up with your foot on the pedal the whole time?

 

350 in a rex. Man you shold not have posted that. I am gonna duck and in no way do i want to see a 350 in a rex i have seen way to many times.

dan

 

I dont mean to sound mean (okay, maybe I do), but putting a 350 in a 7 compleatly dissolves the purpose of owning one of these awesome cars. Due to the fact that you intend to doom yet another RX-7 to this horrible fate, I hope that no one here helps you. Even if you do happen own a second car, I hope that one carbon locks and no longer runs just because you destryed the other one. You my friend, in my opinion, do not deserve to own an RX-7.

~T.J.

 

No **** man, find another forum, cant come around here talking that crap................

 

mine had the same problem when I got it, ended up just turning the nice mixture adjust and idle screws so it would idle around 1800 or so.
Since you only need it for 3 months you might as well throw out all the emmission equipment as well, should help you eliminate or narrow down any problems you have with it.
After pulling the emmission crap you should re-adjust the timing, mixture, and idle settings again. Just go for any idle you can take in my opinion.

P.S. I wouldn't want a 350 in my 7, but too each his own, I actually kinda like the fact that people feel 7's are worth putting nice engines into, shows that having a rotary engine is not the only reason people like this car.

 

For you that talk and try to flame me about the 350 idea, just try to see me on the road when it's in done. I've owned three rex's, and I probaly have more experience with them than you. Don't tell me I deserve to be kick off and what not. You don't know me nor do you understand why the 350 will be put in there. I'm the last person you want to talk about rotary love to. I know all about, **** it I only drive rx-7's. Leshrak thanks man for the info, I was thinking about the idle adjustment. I appreciate it when someone answer the question, and not say some smart *** comment. TEAMFC3S.ORG-Nick

89 gxl/t2
85 gsl

 

I gatta say i agree with that engine it would be sweet, I myself (when I get money) want to but a big block chevy in mine. right now it idles at 2300 trying to slowly get it down.

 

So can we help get his rotary running which is what he asked for???

I saw you got a few ideas below. When you start it, the choke sets and it gets gas satisfactorily without pressing the pedal? I don't really like the setting idle screw higher idea, it is the perfectionist in me.

I assume you put new plugs in it after dumping all the "loosening agents" in it. I also assume you have checked to make sure your carb is relatively clean, jets unclogged etc, fuel filter clean or replaced all that good stuff.

Did you check the idle compensator which is in the air cleaner with a vacuum hose attached to it. If that is not connected and working properly, the car will shut down immediately - been there done that.

 

hey man thanks for your answer. I do have to press the gas pedal in order to start it. Just a little, not even half way, but as soon as I let go of the accelerator it shuts off. I changed the plugs, rotor, distributor cap, after all of the ATF was visibly gone from the carb. For those earlier, or whoever was disturbed by the last reply no hard feelings, just venting. You know. THANKS

 

OK, what about the idle compensator and the fuel delivery?? That would be my immediate guess....

 

Where exactly is the idle screw located?

 

One other thing just jumped to mind, how old is the gas in that thing if it has been sitting for 2 years???

 

I just want to know if this guy has more experiance with rotary engines than we do, why does he need our help? Just for that comment alone I'm definatly not going to help him now.

~T.J.

 

Hey dude what is your problem. I would have never said that if you wouldn't have said that smart *** comment. If I **** you off so much with my 350, or rx's then stop, I MEAN STOP REPLYING TO MY QUESTION. This is my last time reply back to your immaturity. Anyways, I put fresh gas in there due to the fact that it was already on E.

 

Why do you let people torque you off like that? They don't know you, you don't know them ignore 'em..... You ever played street b-ball, simple playground rules, don't run your mouth if you can't fill the hole, it doesn't matter what they say to ya.

Geez... Anyway, what about the idle compensator/vacuum line and the carb condition? Asked you three times now about them and you still have not said whether you checked them . Also the fuel filter.. Sounds like it might be a lack of gas problem.

 

My bad, I really won't be able to check those things till Saturday. That's probaly the only time I can get down there. Hey, but I appreciate all the info. your giving me. Just trying to absorb and come Sat narrow it down thanks to you guys. Check this out, say I raise the idle off of the carb, how will that keep the car running, if as soon as you take your foot off of the peddle the car dies.

 

The throttle blade needs to be tipped open just a little to allow air to scream past an orifice that allows low RPM idle. Without that, The gas can't get sucked out. That's what raising the idle on the BRACKET outside of the carb holding the accelerator cable will do for you. Sounds like you need to rebuild the carb, though. You've got some kind of restriction (scale buildup?) in the idle circuits of the carb that won't allow the fuel to flow under lower CFM's. Regarding the 350 idea, make sure it's an all ALUMINUM affair or you'll be rewarded with an evil-handling beast. That's what happens when you toss 200 extra lbs up front with an iron mouse motor. You could always set it back with motor plates but then you'll end up putting a van-style "doghouse" inside your cabin area to cover up the rodent intrusion...

 

Thanks, that was my first guess. Maybe the carb is a goner. Probaly best to rebuild then to buy a new one.