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Can not accelerate |
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Smoke245 
AMC Apprentice 
Joined: Mar/26/2012 Location: Panama City Fl Status: Offline Points: 237 |
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 Topic: Can not acceleratePosted: Mar/09/2018 at 8:38am |
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I am trying to figure out why my 69 AMC Javelin, 290 engine will not accelerate. I can drive and run at low speeds, but as soon as I go to get on it, it just bogs down and chokes out? And on a separate note, I cannot shut off the car, it keeps on running even when I shut it off and pull the key, it is still running until I pull a wire off the solenoid switch? Any help would be greatly appreciated.
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Bill Lang
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shootist
AMC Addicted 
Joined: May/24/2012 Location: Triad, NC Status: Offline Points: 1023 |
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Posted: Mar/09/2018 at 12:51pm |
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Not accelerating is likely one of the two most common things. Timing is not right or it is straving for fuel.The ignition swtich is certainly electrical issues and checking for power from the switch when the key is in the off position is where I would start. If you don't have a wiring diagram I would strongly suggest finding one online and then work backwards from either the coil or the igntion switch. I know that this is probably not as detailed as you need but more information is needed to get into detailed troubleshooting.
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Smoke245
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Joined: Mar/26/2012 Location: Panama City Fl Status: Offline Points: 237 |
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Posted: Mar/09/2018 at 1:47pm |
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Shootist, i know I am getting fuel to the carb, as I pulled of the fuel line going into the carb and it has a good flow?
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Bill Lang
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79AMX
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Joined: Oct/25/2010 Location: VA Status: Offline Points: 211 |
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Posted: Mar/09/2018 at 3:35pm |
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Not being able to accelerate could be faulty advance.
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jcisworthy
AMC Addicted
Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2805 |
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Posted: Mar/09/2018 at 4:12pm |
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Streched timing chain?
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Specializing in dyno services, engine building, and cylinder head porting
rbjracing.com Phone Number 518-915-3203 |
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Smoke245
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Joined: Mar/26/2012 Location: Panama City Fl Status: Offline Points: 237 |
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Posted: Mar/09/2018 at 4:39pm |
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Could the problem not be something inside the carb itself? Accelerator pump? second stage something?
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Bill Lang
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jcisworthy
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Posted: Mar/09/2018 at 4:52pm |
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Could be something else timing chain was just a suggestion.
Do you have a choke flap? is it staying open when you hit the gas? Accelerator pump would bog when you hit the gas, it gives an initial shot of fuel. Other than the choke flap closing and choking out the engine I cant think of anything carb related that would cause your symptoms. Points shot? Do you have points ignition? |
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Specializing in dyno services, engine building, and cylinder head porting
rbjracing.com Phone Number 518-915-3203 |
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jcisworthy
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Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2805 |
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Posted: Mar/09/2018 at 4:53pm |
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Maybe not enough fuel pressure. How is your fuel pump
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Specializing in dyno services, engine building, and cylinder head porting
rbjracing.com Phone Number 518-915-3203 |
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Smoke245
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Joined: Mar/26/2012 Location: Panama City Fl Status: Offline Points: 237 |
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Posted: Mar/09/2018 at 5:12pm |
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I just changed the points 2 months ago, and the fuel pump is only a year old. If it was the timing chain, would I not hear a clanging rattling noise?
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Bill Lang
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jcisworthy
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Posted: Mar/09/2018 at 5:16pm |
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Dont mean they are still good. Guess you need to go through things
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Specializing in dyno services, engine building, and cylinder head porting
rbjracing.com Phone Number 518-915-3203 |
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