Tech_Greek

Well,

Every morning I wake up, it's flooded now, It'll start and run real rough until I gas it to about 3k rpms (which I guess burns off the excess fuel) and then it'll smooth out to 2,100 RPMS until the engines warm which in turn goes back to normal idle.

This would explain the BAFCOS (Big *** ******* Cloud of Smoke) my car has when it starts up from sitting over night - white - its fuel.

My car's definitely running real rich on start up, I was told to check a hose when I get done driving and see if any fuel has leaked out onto the ground but I suck at spotting hoses and don't know any positions of the hoses on this car YET so if someone could show me a picture or offer any advice that would be great.

- Tech

PT Ray

My SE will do about the same thing. If I let it sit for two or more days and then start it, the smoke will pour out of the exhaust for a couple seconds. It also takes a couple seconds for the idle to stablize. Being it is an original engine, I just figured the oil control rings haven gotten to the point that they will let oil seep into the combustion chamber if the car sits for too long.

Lotus00

The fuel rail is under the upper intake manifold, on top of the engine. You can look for leaks from that, or any of the fuel lines going into/ out of it.

Is it hot when you shut it down for the night? I have had mine flood a couple of times because I parked it for a few hours (cooled off), and then moved it a couple feet.

LongDuck

Flooding in your case could be caused by the fuel injectors 'leaking-down' from the engine pressure and dripping raw fuel into the intake path. Since this path is so short, the fuel will pool in the rotors until the next time you start it. You might also want to pull the dipstick and see if the oil smells like gasoline - this is a common case when you run the engine flooded as the fuel will not compress (liquid state) and will be forced past the oil control seals and into your oil supply.

When the oil thins out from too much gas dilution, the engine will begin to behave strangely like bucking at idle and cruise condition throttle will seem to fluctuate - very odd conditions. Worth a look at the oil to see if that may be part of the problem.

As far as fuel injectors, if you want to dig into it, we can provide a tutorial on UIM removal and what to look for on the fuel rail and injector system. Reply back if needed,

Something else that I thought about is that white smoke is usually coolant, not gas from flooding. If it smells sweet, it's coolant. If it's black smoke, it's fuel. Check your coolant system to see if you're low on coolant from it being drawn into the engine from a blown O-ring housing seal.

Tech_Greek

Well,

I thought about it and the coolant makes sense because it does use coolant up every month or so but my lawnmower (sadly) does the same thing when I flood it.

It doesn't smell sweet, it smells like gas.

- Tech

Rx-7Doctor

iTrader: (13)

Tech, i'll take picture of fuel hose that i wanted you to remove tommorow.
Pm me your e-mail address. rx7doctor

Tech_Greek

Pelezo@thehighoctanemod.com

- Tech

Tech_Greek

Mr. SE God,

I've found out two things,

1) I had the leading igniter cutting in and out, swapped it out from one on my dads rx7, now it fires all the time.
2) Its flooding BAD on start up, if I disable the fuel pump and unplug the intake path and pour some gas in the throttle body it'll start up and run for a few seconds then die.

Go ahead and take the intake manifold off?

- Tech

suburban6lts

white smoke IS NOT FROM GAS, but from oil or more than likely from water, over heated lately?

Tech_Greek

It's blueish, sorry, my dads does the same thing.

I've been taking the intake manifold apart, two ports look clean like new but the two ports the acutators go down look rusted up and crap...what gives?

The injectors...they don't look so hot, I'm probbaly just going to buy new ones given the shape these were in.

Anyone want to sell me some?

- Tech

d0 Luck

if your motor constantly floods itself to death...... and de-flooding it sometimes doesn't work, it is a sign that you are in need of rebuild.

even if the car's been chillin for more than 2-5 days, it's not suppose to flood if everything is in proper order.

diabolical1

iTrader: (3)

it may be flooding or it may be that you have a water seal about to **** itself. i'd say drive the car as you would one day and then let it sit overnight.

take the exhaust manifold off and turn the engine by hand. if you see antifreeze pouring out then you'll know that it's a water seal.

it took me the better part of 2 years to find mine and it was just by chance that i was putting some new exhaust gaskets on when i was doing my clutch a few months ago that i saw antifreeze pouring out the exhaust whenever i turned the engine.

my car does the same things you describe. it smokes on a cold start and there is no trace of the signature antifreeze smell, but i have to add antifreeze or water periodically (maybe once every 3 weeks or so). i went through the cooling system from top to bottom in the last 2 years and what stumped me is that it's not getting pressurized, like it usually does when you have a bad water seal. trust me, it's worth a look ...

Tech_Greek

See, I refuse to believe it's a coolant issue, I mean it looks like my rad has rust pin holes in it anyways.

Took all the spark plugs out, turned over the engine today with a peice of white card board in front of the holes and pure fuel came out, didn't look like coolant at all.