Before i even get into the problem and my thoughts on a solution, this is my car:



1984 RX7 GSL

Rats nest removed

Racing beat header to a no cat custom stainless exhaust

Mazdaspeed air intake kit

MSD 6A Direct fire ignition with MSD blater coils



Oh and FWIW car has been running perfect up until late last fall when it started this flooding issue and the flooding issue was well after the rats nest removal.



Okay, so i have searched and tried to troubleshoot my carb myself. Basically its like this:



Car starts perfect and runs like a raped ape.



If it sits for anything longer than 10 minutes after i turn off the engine, it floods really bad when i try to start it. When i say really bad i mean fuel pouring into the carb and then out of the carb! Here is a pic that i took today after i started it, drove it around the block, shut it off, made a turkey sandwich, came back 30 minutes later and it was doing this (bubbling like crazy and fuel spilled over the carb and onto the block):







If i wait like 2 hours or so it starts right up again, WTF?



Checked and made sure the float bowl solenoid is hooked up and it is.



Next thought is maybe the fuel pump is still running, right? Well i cant hear it, but i have never heard it, i am going to do the same wednesday and then put my head and my ear up close to the rear drivers side wheel well and see if it is still pumping.



Can you guys think of anything else? I hope it doesnt need a rebuild, again, the car drives, runs and starts perfect... Except if i start it, shut it off then try to start it again.



ANY OTHER IDEAS, man this is making me crazy!



And yes, i have posted this on rx7club.com too, but that site is soooooo slow it makes me crazy.



Thanks guys and sorry for the long post!

 

Have you taken a look at the solenoid, to make sure it still opens and closes? Is there anything in the way of the nipple on the selonoid? I ask this because I had this problem when I put a new motor in my 7. MAKE SURE THE SELONOID opens and closes. when the key is on unplug and then replug the selonoid back in. MAKE SURE IT MAKES A CLICKING SOUND, if it doesn't make the clicking sound it needs to be replaced. If there is anything blocking the nipple it (the selonoid cannot open/close and the same problem occurs, flooding) as for the fuel pump, easy way to check is to put the car in the off position and get under the car to take a listen (by the fuel tank). What is happening to the carb is the bowl is emptying into the carb, simple. If the pump was still going after you turned it off you would not only have a dead battery but an empty tank AND an entire engine bay completely flooded with gas. with a 10 gph stock fuel pump you would in a half and hour have 5 gallons of gas in you engine bay/exhaust/ground. which would then mean engine bay fire and bye bye car.... sorry for the gloom and doom but i do hope this helps...



cheers

 

That is a really cool picture. Bubble bubble toilet trouble.



I've noticed sometimes the float bowl vent solenoids like to stick. When I listen for the click and it doesn't happen, I whack it on the side and then it clicks again. I've also had a carb that likes to let one of the floats get stuck in the down position. This always floods it whenever it happens. I whack the top of the carb and it frees and floats up. Its never happens if the fuel level is maintaned in the bowl.

 

i thought i posed here?



um the floats sink here and there

 

replace those floats if they're sinking....sounds like they're absorbing fuel. opening, and flooding. that's a real cool picutre of the carb bubblie.

 

I would chech the float bowl level also .. it might be possable that the float level adjustment is off????



When I rebuilt my carb I set the floats where the rebuild kit told me to, and my car started and ran but It would flood out real bad kinda like the carb in the picture..



So I just eyeballed it and now it works fine..

 

OOps... sorry guys ddint mean to post on this dead thread!!!