Fix

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!

funkjaw

iTrader: (3)

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.

Aaron Cake

iTrader: (1)

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

Fix

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"?

RotaryRocket88

iTrader: (7)

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

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

Aaron Cake

iTrader: (1)

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

funkjaw

iTrader: (3)

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.

Jager21x

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