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carbs to rich will it cause my poping noise #1013173
06/14/11 12:38 PM
06/14/11 12:38 PM
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440dustr Offline OP
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440dustr  Offline OP
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question
I had my carbs running rich to break in motor. Now it cloud of smoke when you first start it or hit the gas pedal good. I get black carbon dots onthe body of the car and the fumes are bad

can this be causing the popping noise out of the exhaust when im driving at a steady speed then hit the gas pedal or when i am at a light and go to take off it hesitates and pops out of the exhaust?

I am guessing I just have to lean it out a little that its loading up with fuel. I made sure my spark plug wire didnt fall off that happened once and it popped out of the exhaust the same way.

thanks

Re: carbs to rich will it cause my poping noise [Re: 440dustr] #1013174
06/14/11 12:41 PM
06/14/11 12:41 PM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1 Offline
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Well why don't you try it and see. Poping tells me vacuum leak. Either way it needs to be leaned down at idle. First you need to get the ignition squared away.

Re: carbs to rich will it cause my poping noise [Re: 440dustr] #1013175
06/14/11 04:36 PM
06/14/11 04:36 PM
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Posts: 36,041
Lincoln Nebraska
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RapidRobert Offline
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No, I'd start by setting the floats & correct PV'
s for your app (not blown & a # 1/2 of idle vac in gear "if automatic") for a start plus not too high idle fuel psi (check it) & I'm assuming no waterlogged floats/needle & seat OK. Not sure on the popping but I'd check plugs/wires/AP shot/as said vac leak/rotor phasing. Holler back w what you find


live every 24 hour block of time like it's your last day on earth
Re: carbs to rich will it cause my poping noise [Re: 440dustr] #1013176
06/14/11 06:34 PM
06/14/11 06:34 PM
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bethlehem pa
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mikemee1331 Offline
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bethlehem pa
sticking valves can cause a popping noise

Re: carbs to rich will it cause my poping noise [Re: 440dustr] #1013177
06/15/11 09:07 AM
06/15/11 09:07 AM
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Nashville, TN
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MOPARMIKE69 Offline
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popping is usually timing or electrical problems. Burning eyes is usually too much fuel


69 Road Runner vert
69 GTX hard top
70 Road Runner 4 speed
70 Hemi Cuda vert
Re: carbs to rich will it cause my poping noise [Re: MOPARMIKE69] #1013178
06/15/11 09:09 AM
06/15/11 09:09 AM
Joined: Jan 2003
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E Central IN
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nd65 Offline
pro stock
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E Central IN
When mine popped out the exhaust it was the MP orange box.

Re: carbs to rich will it cause my poping noise [Re: 440dustr] #1013179
07/01/11 12:35 AM
07/01/11 12:35 AM
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440dustr Offline OP
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well I finally got around to tuning the motor I change my plugs to NGK4 gap at .040 and checked the timming which was as 30 degrees dont remember leaving it that low but now that the motor is broken in I put it at 34 degrees and leaned out the carbs a little. Runs much better no popping and better throttle response. after driving about 9 miles on the highway going a little to fast like 62mph it was at 190/5 degrees but when i got to my desination as soon as i hit the first traffic light is got up to 212ish my buddy said its cause of the speed i was going on the highway with my gears 456, just to hard to go slower onthe highway. does this sound like thats probably my issue. I have to build a new set of gears I am going to start a new thread on that

thanks everyone for your help

Re: carbs to rich will it cause my poping noise [Re: 440dustr] #1013180
07/01/11 01:07 AM
07/01/11 01:07 AM
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Manitoba, Canada
DaytonaTurbo Offline
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Manitoba, Canada
Quote:

it was at 190/5 degrees but when i got to my desination as soon as i hit the first traffic light is got up to 212ish my buddy said its cause of the speed i was going on the highway with my gears 456, just to hard to go slower onthe highway. does this sound like thats probably my issue.




No, actually the opposite. At highway speed you have more airflow thru the rad, so it was cooling well. Once you hit traffic and all you had to draw air thru the rad was the rad fan, you started heating up. 212 is nothing to worry about, however in theory a cooling system should always keep your engine temp no higher than the thermostat rating. In real life most cooling systems on these old cars don't have enough cooling capacity to do that, so building up a little heat in traffic is not a big issue.

Re: carbs to rich will it cause my poping noise [Re: DaytonaTurbo] #1013181
07/01/11 01:25 AM
07/01/11 01:25 AM
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Posts: 300
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440dustr Offline OP
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440dustr  Offline OP
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at what temp should I worry
also i drive with the hook off if that makes a difference
also have to get a radiator cap how many lb cap should I get 18?

I have a 180 thermostat by the way but one big elec fan that pushes the air didnt have the space to put one on the other side

thanks

Re: carbs to rich will it cause my poping noise [Re: 440dustr] #1013182
07/01/11 12:45 PM
07/01/11 12:45 PM
Joined: Jan 2007
Posts: 780
Woodinville, WA
Viol8r Offline
super stock
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Posts: 780
Woodinville, WA
I suppose your total timing is 34º? Where does that put your initial then? If you have an uncurved dizzy, I am guessing you are at 10º or so. If you get some more initial advance, like 18º, and re-curve your timing, it will run a lot cooler.







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