Re: Motor flooding when not running
[Re: 6PAX]
#2733464
01/15/20 08:12 PM
01/15/20 08:12 PM
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Joined: Feb 2006
Posts: 608 TN
1DGEMAN
mopar
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mopar
Joined: Feb 2006
Posts: 608
TN
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Did you ever check to see what the fuel pressure is? Seems like a couple of tests is better than throwing parts at it.
Real Men shift for themselves
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Re: Motor flooding when not running
[Re: MR_P_BODY]
#2733496
01/15/20 10:38 PM
01/15/20 10:38 PM
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Joined: Jan 2003
Posts: 5,731 Detroit area
6PAX
OP
master
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OP
master
Joined: Jan 2003
Posts: 5,731
Detroit area
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This afternoon I took apart the Eddy 750 carb that was originally on the car when this all started. The floats were not hung up at all and were at the proper settings. I cleaned the needles and seats even though they did not look dirty. In fact, everything inside the carb looked bright and clean. I also blew everything out with air before reassembly. Put the carb back together and back on the car. Pulled all the plugs again and dried them all off. Tried to start the car and no dice. Strong smell of gas and the carb was wet all over. I guess I will have to try replacing the fuel pump although I have never had nor heard of a fuel pump that pumped too much fuel when it went bad. I'm getting tired of all of this. Time to start ridding myself of my cars. Did you check the fuel cap.. is this car in a heated shop.. what year is the car I did open the cap but it made no difference and while I do have heat in the garage, I haven't had it on due to the 40 degree temps. 67 GTX.
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Re: Motor flooding when not running
[Re: 6PAX]
#2733523
01/16/20 12:58 AM
01/16/20 12:58 AM
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Joined: Jun 2006
Posts: 5,173 CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,173
CT
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This afternoon I took apart the Eddy 750 carb that was originally on the car when this all started. The floats were not hung up at all and were at the proper settings. I cleaned the needles and seats even though they did not look dirty. In fact, everything inside the carb looked bright and clean. I also blew everything out with air before reassembly. Put the carb back together and back on the car. Pulled all the plugs again and dried them all off. Tried to start the car and no dice. Strong smell of gas and the carb was wet all over. I guess I will have to try replacing the fuel pump although I have never had nor heard of a fuel pump that pumped too much fuel when it went bad. I'm getting tired of all of this. Time to start ridding myself of my cars. Did you check the fuel cap.. is this car in a heated shop.. what year is the car I did open the cap but it made no difference and while I do have heat in the garage, I haven't had it on due to the 40 degree temps. 67 GTX. If you want to rid yourself of the GTX you can send it my way. I'm still looking for my old '67, RS23L77152552
Last edited by GTX MATT; 01/16/20 01:07 AM.
Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street
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Re: Motor flooding when not running
[Re: 6PAX]
#2733863
01/17/20 11:59 AM
01/17/20 11:59 AM
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Joined: Feb 2014
Posts: 1,737 central il.
second 70
top fuel
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top fuel
Joined: Feb 2014
Posts: 1,737
central il.
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This afternoon I took apart the Eddy 750 carb that was originally on the car when this all started. The floats were not hung up at all and were at the proper settings. I cleaned the needles and seats even though they did not look dirty. In fact, everything inside the carb looked bright and clean. I also blew everything out with air before reassembly. Put the carb back together and back on the car. Pulled all the plugs again and dried them all off. Tried to start the car and no dice. Strong smell of gas and the carb was wet all over. I guess I will have to try replacing the fuel pump although I have never had nor heard of a fuel pump that pumped too much fuel when it went bad. I'm getting tired of all of this. Time to start ridding myself of my cars. I don't know if I missed it but I didn't see if you were using a mechanical or electric pump really doesn't matter but it sure sounds like the fuel pressure is too high and blowing past the seats in the carb.
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Re: Motor flooding when not running
[Re: 1DGEMAN]
#2733870
01/17/20 12:29 PM
01/17/20 12:29 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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Critical......I see many people running mechanical pumps w/out a regulator stating that it doesn't matter but it sure the hell does. AND if the car lands on the crown/top of the eccentric, it will hold pressure unlike an electric pumping fuel till it bleeds off....
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Motor flooding when not running
[Re: second 70]
#2733960
01/17/20 05:22 PM
01/17/20 05:22 PM
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Joined: Jan 2003
Posts: 5,731 Detroit area
6PAX
OP
master
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OP
master
Joined: Jan 2003
Posts: 5,731
Detroit area
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"I don't know if I missed it but I didn't see if you were using a mechanical or electric pump"
The fuel pump is a factory type mechanical pump.
"I also think we need a lot more information on where fuel is specifically leaking out from to flood all the cylinders. If the pump overcame seat force and kept needle open the fuel should spill out the vents on the top? Is the top of the carb wet?"
With the original carb, only the plugs were showing signs of excess gas, nothing pouring out of the carb itself.. When I put the 2nd carb on (which was another Edelbrock although lesser cfm), gas was pouring out the vents on top as well as the plugs flooding. I took that carb apart today and it was the same as the first, floats not stuck and set properly and the needles and seat were clean.
"If it was a pressure problem with the tank when you removed the line to the carb it would have sprayed gas everywhere."
Just a little dribble when I disconnected the fuel line from the carb.
"Having said all that, the fact that two different carbs do this, does lead you to believe something else is at issue unrelated to carb."
This is why I asked if a bad fuel pump could over pump fuel vs. the typical loss of fuel pressure.
Keep in mind, I have not changed anything on the car prior to this occurring, just parked it in the garage like normal. The fuel pump and carb. are the same ones that were on the car when I bought it a couple of years ago and I hadn't had any issues of this nature since I bought it.
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Re: Motor flooding when not running
[Re: Mattax]
#2733981
01/17/20 07:14 PM
01/17/20 07:14 PM
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Joined: Feb 2006
Posts: 608 TN
1DGEMAN
mopar
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mopar
Joined: Feb 2006
Posts: 608
TN
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The simplest way to narrow this down is tee a pressure gage into the fuel line. Then you'll know where the problem is.
This has been stated for days . Guess he does not want to check it.
Real Men shift for themselves
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Re: Motor flooding when not running
[Re: 1DGEMAN]
#2733991
01/17/20 08:06 PM
01/17/20 08:06 PM
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Joined: Jan 2003
Posts: 5,731 Detroit area
6PAX
OP
master
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OP
master
Joined: Jan 2003
Posts: 5,731
Detroit area
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The simplest way to narrow this down is tee a pressure gage into the fuel line. Then you'll know where the problem is.
This has been stated for days . Guess he does not want to check it.
FYI, it's not that I don't want to check it but rather that I can't at the moment as I don't own a fuel pressure gauge. I wanted to rule out the carb being the problem first before buying a gauge to check the fuel pump pressure.
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Re: Motor flooding when not running
[Re: 6PAX]
#2734058
01/18/20 02:33 AM
01/18/20 02:33 AM
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Joined: Feb 2006
Posts: 608 TN
1DGEMAN
mopar
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mopar
Joined: Feb 2006
Posts: 608
TN
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The simplest way to narrow this down is tee a pressure gage into the fuel line. Then you'll know where the problem is.
This has been stated for days . Guess he does not want to check it.
FYI, it's not that I don't want to check it but rather that I can't at the moment as I don't own a fuel pressure gauge. I wanted to rule out the carb being the problem first before buying a gauge to check the fuel pump pressure. You can buy combo gauge at HF for $13.00 How many days have you wasted?
Real Men shift for themselves
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Re: Motor flooding when not running
[Re: 1DGEMAN]
#2734091
01/18/20 09:57 AM
01/18/20 09:57 AM
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Joined: Jan 2003
Posts: 5,731 Detroit area
6PAX
OP
master
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OP
master
Joined: Jan 2003
Posts: 5,731
Detroit area
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The simplest way to narrow this down is tee a pressure gage into the fuel line. Then you'll know where the problem is.
This has been stated for days . Guess he does not want to check it.
FYI, it's not that I don't want to check it but rather that I can't at the moment as I don't own a fuel pressure gauge. I wanted to rule out the carb being the problem first before buying a gauge to check the fuel pump pressure. You can buy combo gauge at HF for $13.00 How many days have you wasted? The only time I have wasted is reading your posts in this thread. If all you have to contribute is smart-azz remarks why do you bother to post at all?
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