Carb flooding cylinders 1 and 3 only, why??
#81791
06/29/08 07:32 PM
06/29/08 07:32 PM
|
Joined: Apr 2005
Posts: 178 Tidewater, VA
TMCCuda
OP
member
|
OP
member
Joined: Apr 2005
Posts: 178
Tidewater, VA
|
This is a fresh built .030 440 with Eddy heads, a M1 intake and 750 Speed Demon. I am trying to get my motor running for the first time. I keep having problems with cylinders 1 and 3 flooding with gas. The motor will fire and run maybe 20 seconds, then slow down and quit. It might fire again and sputter and no start. I pull the plugs and turn it over and gas will squirt out of 1 and 3. What would cause the carb to give excess fuel to those two cylinders? I am not using the choke and I am not reefing it. I am using an electric fuel pump and the gauge says about 4 to 5 psi. The fuel is level in both float bowls.
P.S. First, I thought the head gasket was leaking water into the cylinder---I re-torqued the heads, and it still flooded-- I held a cup up to the #1 spark plug hole and it put maybe two ounces of gas with no water into the cup.
Any ideas are greatly appreciated.
1970 Plymouth Barracuda
1994 Ram 1500 4x4 5.2L
2004 Ram 1500 4x4 5.7L Quad Cab
|
|
|
Re: Carb flooding cylinders 1 and 3 only, why??
[Re: TMCCuda]
#81793
06/29/08 07:54 PM
06/29/08 07:54 PM
|
Joined: Apr 2005
Posts: 178 Tidewater, VA
TMCCuda
OP
member
|
OP
member
Joined: Apr 2005
Posts: 178
Tidewater, VA
|
Yeah, its a new carb... I pulled the bowls to check the float settings and look for trash before starting it, however I didn't look at the needle and seat for the primary...will check that next.
Thanks.
1970 Plymouth Barracuda
1994 Ram 1500 4x4 5.2L
2004 Ram 1500 4x4 5.7L Quad Cab
|
|
|
Re: Carb flooding cylinders 1 and 3 only, why??
[Re: goldmember]
#81796
06/29/08 08:09 PM
06/29/08 08:09 PM
|
Joined: Apr 2005
Posts: 178 Tidewater, VA
TMCCuda
OP
member
|
OP
member
Joined: Apr 2005
Posts: 178
Tidewater, VA
|
I turned the pump on and looked down the throat with a light...no fuel coming in from the boosters.
I will check the oil for gas...I got a bottle of cam break in lube along with Rotella... I was hoping to get the cam broke-in before changing the oil... oh well.. Thanks again.
1970 Plymouth Barracuda
1994 Ram 1500 4x4 5.2L
2004 Ram 1500 4x4 5.7L Quad Cab
|
|
|
Re: Carb flooding cylinders 1 and 3 only, why??
[Re: GODSCOUNTRY340]
#81798
06/30/08 09:26 AM
06/30/08 09:26 AM
|
Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
|
About to go away
Joined: Sep 2007
Posts: 14,889
up yours
|
I'll bet the flooding on 1 and 3 is a symptom. Look at your intake runners, is one and three lower than 5 and 7? Probably is. Sounds like the carb has an issue on that side and it's showing up on one and three.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
|
|
|
Re: Carb flooding cylinders 1 and 3 only, why??
[Re: Supercuda]
#81799
06/30/08 11:41 PM
06/30/08 11:41 PM
|
Joined: Apr 2005
Posts: 178 Tidewater, VA
TMCCuda
OP
member
|
OP
member
Joined: Apr 2005
Posts: 178
Tidewater, VA
|
Supercuda-- I looked at the manifold and the bottom is level, It is an M1 single plane.
At the moment, I am going to dust off a Thermoquad that I rebuilt years ago and see if I can get it to run without flooding... I will deal with the other carb later.....Will let you all know how it turns out.
1970 Plymouth Barracuda
1994 Ram 1500 4x4 5.2L
2004 Ram 1500 4x4 5.7L Quad Cab
|
|
|
Re: Carb flooding cylinders 1 and 3 only, why??
[Re: coro500net]
#81802
07/02/08 05:40 PM
07/02/08 05:40 PM
|
Joined: Apr 2005
Posts: 178 Tidewater, VA
TMCCuda
OP
member
|
OP
member
Joined: Apr 2005
Posts: 178
Tidewater, VA
|
I got it running using the Thermoquad. No flooding in any cylinders anymore. For some backround, the motor is on a borrowed homemade test stand. I am trying to get the motor broke in and then it goes to get dyno tuned. It ran great for a few of minutes while I was trying to set the idle for break-in. Then when everything seemed to be going well...the positive battery cable fell on the header, and in a spectacular cloud of sparks and smoke, caused a dead short and melted the negative cable to the battery terminal. The Demon is on the bench and will get played with later.
1970 Plymouth Barracuda
1994 Ram 1500 4x4 5.2L
2004 Ram 1500 4x4 5.7L Quad Cab
|
|
|
|
|