I've read a number of symptoms of leaky injectors but none seemed to be EXACT to mine.

86 NA RX7 FC

Just to throw this out there.. I have not been able to test anything or work on anything after this issue started about a year ago. I was waiting for the return of a friend who was obtaining a legit shop with lifts and air tools etc. But he never returned until a couple of weeks ago...

Now that I have a shop, and a daily, I'm able to start some work...

Here are the symptoms it had when I last tried to crank it.

I had drove the car with no issues the night before for about 40 minutes, relatively normal driving, I didn't dog it or anything, it was a normal warm not to hot not to cold night, and I always let my car warm up a few minutes before I drive. Oil was in check always, hoses and everything was new, and everything else I kept well maintain and tuned.

The next morning it was a muggy day starting to get up to the 80s, I went to crank my car, and it acted like it was flooded... Well I know what a flooded RX7 sounds like, and i smelled the fuel in the exhaust. So I fallowed the deflooding procedures and replaced my plugs. Like normal. plumes of smoke came out of the exhaust as it burnt the excess oil and fuel out. I held the rev up for a couple of minutes and then I let it set to continue to blow the smoke out... once I thought It was clear to go, it flooded itself again. So yet again, I deflooded it, only for it to happen again, a couple of weeks later I tried it again, only to have the same result, I didn't have the chance to even move it each time it flooded.

I plan to replace the engine with a turbo engine later anyways, I'm not looking for amazing high power but a street port and a turbo engine will do the trick, I still want my car comfortable, so needless to say I will be working on this car A LOT. My body man is simply waiting for the green light and the entire body and paint will be redone... (like I said I have a daily so im not TOO worried about getting it running just yet)... BUT if i can get the NA going while I work out my new engine and build it while its out of the car I will be so friggen happy! I been kind of the hype man for RX7s around here in my city. I already got one friend that picked on up, and now i have several who are working out deals for others... So it kinda sucks that the hype man here.... doesn't have a working RX7. SO pleassseeeeeeeeeeee anyone who can help that would be great!

 

Check the thermo switch by the alternator. When that thing goes bad, it will be snot rich on cold start up and flood and take a long time to start up.

 

Flow test the injectors. Flooding immediately is a sign that one of them is locking open.

 

Thanks guys I'll be checking them as soon as i can get back there.

On another note.

How do I go about 'flow checking/flow testing"?

 

Send them out for service, and they'll flow test them.

http://www.witchhunter.com/
http://www.rceng.com/Fuel-Injector-C...CLuETTyyfxfiCH

 

Or check the local Yellow pages for "injection service".

 

Bench testing injectors at home isn't really that difficult, just search the net and there are plenty of write ups. HOWEVER, I agree that it is a far more worthwhile investment to just send them out for testing and cleaning.

 

I messed up the wiring when I installed a new fuel pump thinking it was my injectors the reason my car wasnt starting.