mymmeryloss

iTrader: (13)

Very helpful thread...

Now only if my 7 would start...

DeMoe Aurelius

iTrader: (4)

When mine floods now I pull the fuel pump relay under the steering column and get ready to connect it back up, Then when it catches plug it back up to keep it running, you have to be kind of quick with it. Make sure your battery is charged up cause it will draw and drain the battery from the cranking.

dennis blackstone

Theres a swich that can do that

the old thread ressurection

sharingan 19

iTrader: (16)

Personally I've found that not driving a poorly maintained piece of crap tends to cure flooding problems.

Walbro 255's w/ stock FPR (or any n/a for that matter)
Old and/or leaky injectors
Old and/or worn spark plugs
Low compression engines
Stock ecu

These are some of the root causes of flooding, most of which can be easily dealt with.

Logicalbomb

iTrader: (1)

I forgot if I told you to put in a fuel cut off switch or not yet? My flooding is caused by having a turbo block and everything prepared for a turbo without actually having a turbo... I would suggest fuel cut off switch, check your injectors, downsizing your injectors if you're running to rich, and if all else fails calling someone who does this professionally.

Sometimes a wise man looks under his hood and realizes he is in too deep, and no amount of youtube instructional videos or forum advice can fix this. When you know that for sure just get it done right the first time. Professional mechanics tend to charge you more when they see you've done something stupid and they have to fix it lol

1983rx7mikesrx7

ok so ive been haveing the flooding problem all freaking day. ive tryed many of the suggestions stated in here but nune seem to work for me. i used to have a snowmobile that had a rotary motor too and had the same flooding problem as well and what i used to do was take a blow tourch to the spark plug (pulled out of the motor) get it as hot as i could (holding it in my bare hand so i guess not too hot) put it back in as fast as i could n start pulling. it would start 99% of the time. so i did the same to my 1985 rx7 gsl with a 12A motor and what do u know it started right up. ( i did do the deflooding thing with the plugs out befor i heated them up and stuck em back in i know its not a fix but it could help if your just trying to get it running.

1983rx7mikesrx7

i do have a fuel cut off switch as well and DID NOT TURN ON FUEL PUMP UNTILL IT STARTED.

bumpstart

for an FC with leaky injectors
- a solenoid teed between supply and return fuel pipes that failsafes open when the power is turned off
thus dropping rail pressure to zero the instant the fuel pump is turned off

MeesterJonathan

If you are having constant hot start issues such as flooding, honestly the first thing you should do is a compression test. Literally takes 5 minutes to do and will give you an easy diagnosis. It's much better to know and just fix it right away rather than letting it continue to get worse. I can attest to this because I have been having the hot start issue for a little while now. I kept looking for the answer ignoring that it probably needed a rebuild. Just tested today and found 80 psi on all faces. So yep.. time for a rebuild! Better to do it now where the cost will be minimal than wait and end up replacing housings and rotors!

dennis blackstone

im back

RotaryEvolution

iTrader: (30)

and you still have a flooding issue

gsmithrx7

I mounted a toggle switch into the steering column top cover and wired it the same way. When I park the car, I turn off the fuel pump and let it run out of fuel. This stops the extra fuel in the line from flooding the engine. When I go to restart the car I leave the switch off and start cranking, the fuel still in the line is enough to get the engine to catch, then I flip the swithch to start the fuel pump and away I go. Works very well.

By the way, you know that cloud of white smoke that floats through your neighborhood when you finally deflood your engine, it is from the sub-zero starting assist that pumps pure anti-freeze into the engine when you depress the gas pedal when the engine is not running! Nice to know!

I thought the flooding was from leaking fuel injectors, but it is really due to low compression with the stock computer pushing way too much fuel out causing the engine not to catch! How do I know, I sent out my injectors to be rebuilt and when I installed them the problem was still there!