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| 1973 plymouth duster stalling https://slantsix.org/forum/viewtopic.php?t=55749 |
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| Author: | dusterjess73 [ Wed Jul 09, 2014 10:21 am ] |
| Post subject: | 1973 plymouth duster stalling |
hello my 73 sl6 duster stalls out on me i have to take off with my foot on gas pedal lightly if i give more gas there is a dead spot let go of gas give it gas again and it takes off fine not a carb problem because i just changed out the carb my car is driving me nuts but i love the damn thing need some help 
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| Author: | Reed [ Wed Jul 09, 2014 10:38 am ] |
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Where did you get the "new" carb? Did you verify any of the settings on the new carb when you installed it? |
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| Author: | wjajr [ Wed Jul 09, 2014 2:09 pm ] |
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Quote: hello my 73 sl6 duster stalls out on me i have to take off with my foot on gas pedal lightly if i give more gas there is a dead spot let go of gas give it gas again and it takes off fine
LOL that is the way these cars drove right off the show room floor…c1973 Jingle: That funny little put-down, when you put your foot down, and that’s what hesitation all about... Get some Getty Gas, the gas with guts. You need to tune the carb, set the timing to more optimal setting and check valve lash. What is you base or static timing set to? What carburetor are you using? Do you have any vacuum leaks? What are your intake and exhaust lash settings? |
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| Author: | dusterjess73 [ Wed Jul 09, 2014 3:06 pm ] |
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i got the carb from a local carb rebuild place near my house i traded my used carter 2 barrel for a rebuild one. my car still stalled on me even when i had the single carb on it |
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| Author: | dusterjess73 [ Wed Jul 09, 2014 3:10 pm ] |
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my timing is set to about 11 tdc im using a carter bbd i have the super six set up on my duster even when i had the single carb on it still has this issue was thinking vacuum advance checked it but its good. im thinking possible exhaust leak? because it only stalls when engine is cold after 10 minute ride its all good i just hate it cause on the way out of work there is a hill and car turns off about 20 feet up the hill |
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| Author: | Aggressive Ted [ Wed Jul 09, 2014 6:58 pm ] |
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Check and or fix the accelerator pump so you have a nice healthy pump shot. Check for any slop in the linkage then check for how much squirts out looking down the throat with the engine off. Sometimes the outlet hole can corrode and or be easily blocked. Mine shoots a healthy stream of gas....no bog what so ever! You should be able to break the rear tires loose when set right. |
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| Author: | wjajr [ Thu Jul 10, 2014 9:10 am ] |
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Quote: im thinking possible exhaust leak? because it only stalls when engine is cold after 10 minute ride its all good
That looks to be faulty choke adjustment; pulling off too quickly, and possibly heat riser system, the device the heats intake manifold below carburetor is stuck and or plugged. When plugged or flapper is stuck no exhaust heat reaches manifold for a quick heat-up which can cause a temporary icing condition or at the least fuel to drop out of suspension in intake resulting in lean condition after choke pull off. Ten minuets would be long enough to allow exhaust manifold to get hot enough to warm the intake enough to improve fuel suspension to allow decent drivability to return. |
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| Author: | dusterjess73 [ Fri Jul 11, 2014 1:24 pm ] |
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aggressive ted i checked pump squirts good amount of gas found an exhaust leak was making my car bog and hesitate got it weld running way smoother now |
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| Author: | dusterjess73 [ Fri Jul 11, 2014 1:28 pm ] |
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wjajr when i got the super six installed there was a bad exhaust leak at heat riser valve plus it was broken so i just got the holes welded and and heat riser removed wich was a bad idea now i have to buy a new exhaust manifold so im guessing it is heat riser now that i know i will warm car up for couple of extra minutes not running choke right now till i get the right one |
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| Author: | wjajr [ Sun Jul 13, 2014 7:53 am ] |
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Exhibit "A": Quote: wjajr when i got the super six installed there was a bad exhaust leak at heat riser valve plus it was broken so i just got the holes welded and and heat riser removed wich was a bad idea now i have to buy a new exhaust manifold so im guessing it is heat riser now that i know i will warm car up for couple of extra minutes not running choke right now till i get the right one
No manifold heat, no choke = no drivability until fully warmed up, no decent cold idle, and a contribution to poor fuel economy particularly when driven for short trips. Also this will hasten cylinder wash-down, wearing of their surfaces, and oil dilution. |
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