2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

gas dripping from exhaust..?

Thread Tools
 
Search this Thread
 
Old Jan 26, 2003 | 02:21 PM
  #1  
StinkyFatPig's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Nov 2002
Posts: 140
Likes: 0
From: BC, Canada
Unhappy gas dripping from exhaust..?

ok so i noticed today there there is gas dripping from the exhaust.. what is up with that? could that be just because it isnt starting so all the gas that isnt getting burnt is running down the pipe's?
Reply
Old Jan 26, 2003 | 02:36 PM
  #2  
dr0x's Avatar
pei > caek
Tenured Member 05 Years
 
Joined: May 2002
Posts: 4,643
Likes: 0
From: Mars
Are you sure its not water? Gas would ignite from the exhaust temps when the car is running...
Reply
Old Jan 26, 2003 | 02:36 PM
  #3  
Felix Wankel's Avatar
Super Newbie
Tenured Member 10 Years
 
Joined: Feb 2001
Posts: 4,398
Likes: 1
From: Birmingham, AL
it means you have flooded the absolute **** out of your car.
Reply
Old Jan 26, 2003 | 02:40 PM
  #4  
StinkyFatPig's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Nov 2002
Posts: 140
Likes: 0
From: BC, Canada
oh well this car doesnt start so the exhaust isnt hot.. i was trying to start it..


Ok i figured as much.. but what the **** could be the cause of that..
I just installed a fuel cut switch hoping that it would work.. but that doesnt do ****.. I had the injectors cleaned and rebuilt.. what is causing the car to have so much gas injected into the motor?
Reply
Old Jan 26, 2003 | 02:42 PM
  #5  
Felix Wankel's Avatar
Super Newbie
Tenured Member 10 Years
 
Joined: Feb 2001
Posts: 4,398
Likes: 1
From: Birmingham, AL
Does it have spark?

If so, have you put some new plugs in it yet? If its still on the same ones, they are probably worthless now.

It may be time for some ATF.
Reply
Old Jan 26, 2003 | 02:45 PM
  #6  
dr0x's Avatar
pei > caek
Tenured Member 05 Years
 
Joined: May 2002
Posts: 4,643
Likes: 0
From: Mars
Dude, if you do have gas dripped from the exhaust you wont get it started from cranking. You will have to push/tow start it or use ATF or some other oil (im not a fan of putting tranny fluid in my motor though).

Just get some really heavy rope, or a tow rope/chain (be careful w/ the chain) and connect it to the front of your car and the back of someones car/truck. Put it in first gear w/ the clutch engaged, turn the key to "ON" and turn off the fuel pump. Hold the accel down so the tb is allowing air into the motor. Your car will just sputter and ****, and probably smoke a lot. If gas is puddled in the muffler, there might be a chance of blowing it up, heh. Your car will sound like it is running once its deflooded. Turn the fuel pump back on and release the accel. Wait a few seconds then push the clutch in, it should be running. It might take a few blocks for it to come to life (especially if its this flooded). After doing that if it doesnt start, go grab a new set of plugs (or clean them) and try again.
Reply
Old Jan 26, 2003 | 02:51 PM
  #7  
StinkyFatPig's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Nov 2002
Posts: 140
Likes: 0
From: BC, Canada
I have spark, I tried 2 sets of plugs, I did the ATF trick.. didnt seem to do a thing.. I have tried pulling the fuse under the hood, and cranking it a bit then putting it back in and still nothing.. we tried to pull it with my buddies 4X4 and still it would not go.. we unfortunaly couldnt get a hell of a lot of room so not lots of speed.. but that didnt work either..

I mean, it comes so very close, and does start for less then a second at times.. but it just will not stay going..

and i have been trying **** for the last 3 months..

it did run at one time.. when i first bought the car it was hard to start but it would once in a while.. like fairly often.. and when it was going it would run great.. lots of power etc..
Reply
Old Jan 26, 2003 | 02:53 PM
  #8  
dr0x's Avatar
pei > caek
Tenured Member 05 Years
 
Joined: May 2002
Posts: 4,643
Likes: 0
From: Mars
Hrm. Well, if its as flooded as you say, get your friend back out and keep going. Ive heard some people say it took over a mile of towing at 4000rpm in first gear to get it to fire up.
Reply
Old Jan 26, 2003 | 02:58 PM
  #9  
StinkyFatPig's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Nov 2002
Posts: 140
Likes: 0
From: BC, Canada
whoa a mile, thats rough.. ok well lets say that i do get it going from push starting... is that going to fix my problem? letting it run for a while will that stop all this **** and fix the flooding problem?
Reply
Old Jan 26, 2003 | 03:01 PM
  #10  
dr0x's Avatar
pei > caek
Tenured Member 05 Years
 
Joined: May 2002
Posts: 4,643
Likes: 0
From: Mars
It will unflood it. Having it run instead of being flooded will allow you to diagnose the car to find out why its flooding... probably leaky injectors though. But until you find out why its flooding and get it fixed, I would shut the car off w/ the fuel switch and not the key.
Reply
Old Jan 26, 2003 | 03:05 PM
  #11  
StinkyFatPig's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Nov 2002
Posts: 140
Likes: 0
From: BC, Canada
ok well, I have had the injectors serviced and there working perfect by the readouts standards..

but getting it running and burning off all the extra fuel, and letting the car sit for 2 weeks, all the fuel should be gone aswell... shouldnt it?
Reply
Old Jan 26, 2003 | 03:11 PM
  #12  
dr0x's Avatar
pei > caek
Tenured Member 05 Years
 
Joined: May 2002
Posts: 4,643
Likes: 0
From: Mars
Perhaps. Fuel in small spaces usually doesnt evaporate that fast.
Reply
Old Jan 26, 2003 | 03:19 PM
  #13  
StinkyFatPig's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Nov 2002
Posts: 140
Likes: 0
From: BC, Canada
good point..

Ok, if its flooded what exactly should it do when turning it over? nothing but turning over? or fireing here and there.. etc.?
Reply
Old Jan 26, 2003 | 03:30 PM
  #14  
HeffBoost's Avatar
Keep Right Except to Pass
Tenured Member 05 Years
 
Joined: Jan 2003
Posts: 984
Likes: 1
From: Seattle
If it's flooded it shouldn't fire at all. If it's really flooded it will spin fast and sound like it has no compression. You'll have to expell all the fuel and then get some oil back in the chambers to restore compression.

It should be really easy to determine if it's flooded or not. Pull a plug. I don't understand why we're going around and around on that point. If the plug is fuel-wet then leave 'em out and crank until you don't see fuel vapor, put a little oil in each chamber, clean the plugs and put them back in and fire it up.
Reply
Old Jan 26, 2003 | 03:46 PM
  #15  
Icemark's Avatar
Former Moderator. RIP Icemark.
 
Joined: Apr 2001
Posts: 25,896
Likes: 24
From: Rohnert Park CA
sounds like bad compression to me
Reply
Old Jan 26, 2003 | 05:49 PM
  #16  
StinkyFatPig's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Nov 2002
Posts: 140
Likes: 0
From: BC, Canada
Originally posted by HeffBoost
If it's flooded it shouldn't fire at all. If it's really flooded it will spin fast and sound like it has no compression.
and that is not the case.. it does fire.. it almost starts.. then just bogs out after a second..



as for the low compresion.. im alittle worried about that.. thats pretty much my last quess.. i need to get a compresion gauge and then we will know.
Reply
Old Jan 26, 2003 | 07:35 PM
  #17  
$150FC's Avatar
Currently Winning
Tenured Member 10 Years
 
Joined: May 2002
Posts: 2,438
Likes: 0
From: Birmingham, AL
We just got my car started. It was flooded. You /have/ taken out the spark plugs, taken the EGI INJ. fuse out, and turned it over to get all the **** out, right? You'll also be able to tell if you have a blown seal that way, too.
Reply
Old Jan 26, 2003 | 08:13 PM
  #18  
StinkyFatPig's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Nov 2002
Posts: 140
Likes: 0
From: BC, Canada
yes i have done that..
I have literly done every one of the little tricks presented on this board.. it is alittle better, it almost starts.. but still doesnt..

and how would you tell that there is a blown seal with the plugs out?
Reply
Old Jan 26, 2003 | 08:31 PM
  #19  
$150FC's Avatar
Currently Winning
Tenured Member 10 Years
 
Joined: May 2002
Posts: 2,438
Likes: 0
From: Birmingham, AL
the way it sounds. all the pulses sounded the same. If a seal is blown, one of the pulses will sound retarded.
Reply
Old Jan 26, 2003 | 08:33 PM
  #20  
dr0x's Avatar
pei > caek
Tenured Member 05 Years
 
Joined: May 2002
Posts: 4,643
Likes: 0
From: Mars
Just do a compression test.
Reply
Old Jan 26, 2003 | 08:41 PM
  #21  
RevinRx7's Avatar
Concerned Citizen
Tenured Member 20 Years
iTrader: (3)
 
Joined: Nov 2001
Posts: 699
Likes: 0
From: Miltown, WI
For a compression check, pull a plug from each rotor, crank over the motor. it should sound like consecutive pulses. there should be a whoosh, followed by a woosh, and another after that in the sam intervals. They should all sound the same strength too. If you can tell from that, put one plug and do one rotor at a time and there should be 3 strong pulses from each.
Reply
Old Jan 26, 2003 | 08:56 PM
  #22  
dr0x's Avatar
pei > caek
Tenured Member 05 Years
 
Joined: May 2002
Posts: 4,643
Likes: 0
From: Mars
A flooded motor will sound like its blown if you do that. However, on a real gauge it will still show you some psi. If all the numbers are about the same, then good. The chances of all seals losing compression equally isnt likely.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
userjh5174
Alternative Fuels
1
Jan 9, 2016 08:49 AM
musker
New Member RX-7 Technical
1
Oct 1, 2015 05:58 PM
rattlehead
New Member RX-7 Technical
2
Sep 25, 2015 10:55 PM




All times are GMT -5. The time now is 03:50 AM.