Jensf1

Hi everyone,
First let me say that I have searched through the flooded RX8 thread high and low and am having a terrible time finding the answers to my questions and time is of the essence so here goes:

Managed to flood my 8 (again) it's an '04 with 40K on it and probably hasn't had the recall work done (nearest Mazda dealership is 200 miles away so I don't make it there often). I fixed the 8 last time she flooded by using the fuse pull method but for the life of me I can't remember (nor find):

1. When trying to de-flood by pulling the fuel pump fuse, after I replace the fuse and crank the car in an effort to start it should I have the gas pedal floored or not? I remember this being important but can't remember which way is correct.

2. If I have no luck with the fuse pull I may try a rolling start. From what I have gathered I put the car in second get it rolling, and here is my question......do I start to crank the engine and then release the clutch while cranking?

That's it. Told you they were simple. Thanks for your help fella's!

Jon316G

iTrader: (1)

The accelerator pedal should be floored, then crank the car.
This will remove the excessive fuel while preventing more from being injected.

Have the key turned to the 'ON' position and then dump the clutch while rolling.

If those don't work for you, try this method:
https://www.rx8club.com/showpost.php...8&postcount=89

Jensf1

Thanks Jon I really appreciate it. If I could jsut clarify, when you say "on" positin, that would imply the engine is trying to start correct? or is that just the position that turns on the radio etc. without the car trying to start (I know I sound like an idiot, I just want to make sure I get it right if I try it) Thanks again!

Shnifty

"On" means past the first notch which turns the radio on into the position it would be in if the car were running.

Jensf1

Sorry, I guess I'm still a little confused, so when in "on" position is the engine trying to turn over or not? Appearently I'm a slow on the uptake today.

Jon316G

iTrader: (1)

Jensf1

So when you dump the clutch how does the engine start if it's not in the start position?

ndhoffma

You can do this with all manual cars... it will make the engine start turning, and if you are going fast enough, it should be enough to start it... its kinda like how you can start a plane by spinning the prop

The start position is just for running the starter motor etc

Jensf1

Okay great! Thanks for everyone's help! I'll give it a shot tonight and post an update tomorrow. I really appreciate evryone's willingness to answer my questions. Thanks again!

Jensf1

Okay, after scouring the forums some more I am getting conflicting answers to my first question. When pulling the fuse and then replacing should I crank with the pedal depressed or not (I believe what you said Jon I just want a verification from someone who has successfully used this method) 1/2 the people say crank without any throttle, other half say with. Does anyone have a difinitive answer?

Jon316G

iTrader: (1)

Here is an idea... read the owner's manual, section 7-20

Jensf1

I've read the reccommendation from Mazda and I understand that depressing the pedal cuts off the fuel, but I really seem to remember that when you're using the fuse pull method you crank without depressing the throttle, that seems to be backed up by a couple opf users, where as others say depress the throttle, what a pain! I think I may just go straight to the bump start and forget it.

jmc23200

First off, WTF. You can't depress the gas pedal???? Is it going to kill you? You are being doubly sure no extra fuel is going to enter your engine, is that bad? Technically the fuse pull should work by itself, but it doesnt cost anything and doesnt take any time to depress the gas pedal any way.

Depress the accelerator pedal all the way down before turning the key from the lock position. Next, crank the engine for 5 to 10 seconds. Let go of the key, now you are in the on position. This procedure, like stated above and in the Owners manual, basically cuts off the fuel from entering your engine and allows you to only burn off what is in your engine.

If that doesnt help and you are going to try a rolling start, get a few friends or someone who can give you a tow. You need to build up a little bit of speed. Depending on how bad the engine is flooded, it may not work right away. Try burning off the excess in your engine then roll starting.

Jon316G

iTrader: (1)

The pedal idea from Mazda is the same concept as pulling the fuel fuse... you're cutting fuel.

But... like you said
so I won't waste anymore of your time since I've clearly never dealt with a flooded engine before.

Jensf1

Okay, Thanks guys. sorry to be so **** about it all, just don't want to make it worse.

jmc23200

Understandable. Most people you talk to about the Roatary engine don't know there coils from their access ports(*** from elbow idea hehe). I have deflooded once due to my idiot autobody. Depressing the pedal works fine. Make sure you are outside when you do this. There will be A LOT of smoke. Smoke from your exhaust is a good sign in this case, means its burning the crap off. A little smoke from your tail pipes means youre close. Fuse/depress pedal, crank 5-10 seconds, wait 1 minute, repeat. Good Luck

Jon316G

iTrader: (1)

I love my new coils and AccessPort...

As long as the smoke is white
My car after a de-flood

teknics

here's a few tips:
With the gas pedal floored the ECU will stop injecting fuel while cranking.
Even with the fuel pump disconnected if you dont floor the pedal some gas will still enter the chambers as the injectors will still be opening and closing, so FLOOR the pedal.

Generally at mazda we have a good strong jumpbox. we normally go outside hook up the box and let it sit for 5 minutes in case the owner tried deflooding it themselves. then we go outside (i leave the relay in, others pull it, doesnt make a difference if you leave the pedal floored) and get in.

Crank the car for about 15-20seconds with the pedal to the floor, then wait 30seconds and repeat, generally 4 times of this is what I do. Then floor the pedal and let up about 1/4 of the travel (3/4 floored in other terms) crank the car, if it still does the death spin (aka no noise) wait 30 seconds and start at step 1.

Now when it's 3/4 floored if it starts chugging or making other "im alive" noises it's all about finesse. sometimes it will start with the pedal simply set at 3/4, sometimes you'll have to pump the pedal from no pedal to 3/4 pedal, if you crank for a while and dont get it started floor the pedal for a few seconds to help out. Generally if within 3-4 times of doing this you still dont seem any closer do 1 or 2 cranks with the pedal floorexd again.

Honestly the reason why it's hard to deflood the cars is generally the starter/wiring to the starter overheating or the battery being weak.

unfortunately its hard to nail a "perfect everytime" technique because it does involve some foot finesse. Well unless you go all out and pull your plugs, disconnect the e-shaft sensor, and crank with the pedal floored for a while then install new plugs get the battery fully charged let the starter cool, that will generally start any really flooded car in a few cranks, but requires time, pushing the car into the shop etc.

kevin.