Re: 440 6 pack Need help with solving fuel in exhaust issue
[Re: Cab_Burge]
#1573255
02/02/14 08:48 PM
02/02/14 08:48 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Like Cab said with the PV gasket and make sure the needle and seat are working right... too high of a setting or if its seeping will flood the engine with fuel... you might be able to start it and have it run but be way fat... sounds like the problem started after you played with the PV
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Re: 440 6 pack Need help with solving fuel in exhaust issue
[Re: MR_P_BODY]
#1573256
02/02/14 11:27 PM
02/02/14 11:27 PM
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Joined: Jan 2003
Posts: 24,562 Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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I had an issue once w/ the gasket. (blue kind) There is a tiny hole in the bottom that air or fuel or something goes thru, in any event the gasket was blocking the hole, jeesh what a fit I had, It'd run for 30 seconds cut off, flood and so on. Opened the hole up and issues went away. After you check what Cab said give them the once over and start from scratch, check the floats, reset the idle mixtures, check you timing and so on. Good luck.
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Re: 440 6 pack Need help with solving fuel in exhaust issue
[Re: Mr.Yuck]
#1573258
02/02/14 11:47 PM
02/02/14 11:47 PM
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Joined: Feb 2005
Posts: 4,318 Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,318
Prospect, PA
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Quote:
this one...the gasket covered it up.
That is the squirter feed. Has nothing to do with flooding or cutting off. Would definitely cause a stumble on acceleration though.
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Re: 440 6 pack Need help with solving fuel in exhaust issue
[Re: taboo]
#1573260
02/08/14 05:31 PM
02/08/14 05:31 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Thank you all so much for help so far. I am still having the same issue though. I have replaced the power valve with another new one and made sure it was seated properly. I also replaced the needle and seats in all 3 carbs and set all three at the lowest setting possible. I also blocked the fuellines going to the outboard carbs so i am only running on the center carb. Lastly, i carefully ran the idle screw in the metering block almost all the way in. Still gassing out the garage in no time. Oddly with each change i have tried the problem does not seem to be changing at all. No improvement.
I believe the next things to check would be the timing and fuel pressure. Any other recommendations?
Try closing the mixture screws all the way... it should stall out... if it doesnt then its pulling fuel... from some where(assuming the throttle blade is closed enough so you are on the idle circuit)
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Re: 440 6 pack Need help with solving fuel in exhaust issue
[Re: taboo]
#1573261
02/08/14 05:32 PM
02/08/14 05:32 PM
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Joined: Jun 2006
Posts: 5,166 CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,166
CT
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Yes check your timing, whatever was done to the MSD box may have changed the timing slightly. Do you have a friend with a known good box to try?
Did the car ever run correct after you changed the power valve the first time? Or did you do that as the same time as the lines/your spark issue?
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: 440 6 pack Need help with solving fuel in exhaust issue
[Re: ek3]
#1573268
02/09/14 03:08 PM
02/09/14 03:08 PM
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Joined: Jan 2003
Posts: 9,436 Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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Quote:
you say it has a vac-reading of 10..depending on the cam, that could be a clue. mabe verifiy your initial timing @ 950 rpms . 15-18 * should make it burn "cleaner" in most cases. if it pings on acceleration, just taylor the curve to slow it down. you are getting a lot of good solid info from the above posts,440-6's are typicial tail pipe stinkers!
And also, a 6.5 power valve will work fine !
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Re: 440 6 pack Need help with solving fuel in exhaust issue
[Re: GomangoCuda]
#1573269
02/09/14 03:15 PM
02/09/14 03:15 PM
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Joined: Nov 2006
Posts: 511 Jasper, Indiana
fastnos
mopar
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mopar
Joined: Nov 2006
Posts: 511
Jasper, Indiana
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Thank you all so much for help so far. I am still having the same issue though. I have replaced the power valve with another new one and made sure it was seated properly. I also replaced the needle and seats in all 3 carbs and set all three at the lowest setting possible. I also blocked the fuellines going to the outboard carbs so i am only running on the center carb. Lastly, i carefully ran the idle screw in the metering block almost all the way in. Still gassing out the garage in no time. Oddly with each change i have tried the problem does not seem to be changing at all. No improvement.
This didnt make sense to me. From what I have read and heard, the 6 pack uses the front and rear carbs to Idle. The Idle mixture screws are sometimes hidden behind little caps on the base plate and the rear can be a real pain to adjust. But if you have blocked the fuel lines from going to the front and rear carbs, this will throw off your whole set up. Someone else please confirm or dispel this please..
A True Hybrid: Burns Gas AND Rubber!
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Re: 440 6 pack Need help with solving fuel in exhaust issue
[Re: GomangoCuda]
#1573270
02/09/14 03:31 PM
02/09/14 03:31 PM
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Joined: Jan 2003
Posts: 24,562 Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
Quote:
depending on your cam you might need 1000k at idle.
What?
I'm at 850.. just saying in N it might like a higher idle.
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