Car stalls on hard braking
#31402
10/03/06 12:39 AM
10/03/06 12:39 AM
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Posts: 4,150 VA
RapidRunner
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I was executing a hard braking exercise in traffic the other day not by my choice. During the braking as I pressed harder on the pedal to quickly stop the car the engine idle continued to drop until it finally stalled out. No problem restarting it though. I checked the float level on teh center carb when I got home and it was right at the bottom of the sight hole just slightly dribbling out. Any suggestions? MikeE
Who knows? The Shadow Knows! But he ain't on this fraking forum!
"This restoration is a test,, It is ONLY a test, Had this been an actual Restoration I would have received instructions on what to do and where to get the MONEY!"
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Re: Car stalls on hard braking
[Re: Quicksilver440]
#31404
10/03/06 02:33 PM
10/03/06 02:33 PM
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rvoyles, Thanks for the reply. First let me say that your cars looks awesome. I love the look of the silver and black I do not think I have a flooding problem. If I start to brake hard the idle will start to drop smoothly(almost linearly) below 900 like you are turning the idle screw down. If you let off the brake the idle comes back up. If you press harder on the pedal the idle continues to slowly, smoothly drop to 0 and the cars stalls. Once it stalls you can start it right back up like normal, just turn the key, no need to playing with the throttle. I'm not saying it can't be a flooding problem just one I am not fimilar with. I would have expected a hard start if it flooded. Manual steering and manual brakes if that helps?? MikeE
Who knows? The Shadow Knows! But he ain't on this fraking forum!
"This restoration is a test,, It is ONLY a test, Had this been an actual Restoration I would have received instructions on what to do and where to get the MONEY!"
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Re: Car stalls on hard braking
[Re: RapidRunner]
#31407
10/03/06 03:54 PM
10/03/06 03:54 PM
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Joined: Jan 2003
Posts: 21,511 N.E. OHIO, USA
A12
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Float valve. Float pivot. Float with pin hole. Float vent. Take that carb and get your money back from the you got it from MikeR
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Re: Car stalls on hard braking
[Re: RapidRunner]
#31411
10/03/06 07:41 PM
10/03/06 07:41 PM
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Joined: Jan 2003
Posts: 10,766 Central Valley, CA.
Quicksilver440
I Live Here
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I Live Here
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Posts: 10,766
Central Valley, CA.
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Quote:
rvoyles,
Thanks for the reply.
First let me say that your cars looks awesome. I love the look of the silver and black
I do not think I have a flooding problem. If I start to brake hard the idle will start to drop smoothly(almost linearly) below 900 like you are turning the idle screw down. If you let off the brake the idle comes back up. If you press harder on the pedal the idle continues to slowly, smoothly drop to 0 and the cars stalls.
Once it stalls you can start it right back up like normal, just turn the key, no need to playing with the throttle.
I'm not saying it can't be a flooding problem just one I am not fimilar with. I would have expected a hard start if it flooded.
Manual steering and manual brakes if that helps??
MikeE
Thanks for the kind words...
I agree that the engine restarting so easily doesn't really sound like a flooding issue. Mine was always hard to restart....but only occured under real hard breaking.
Just a though...whats your idle sitting at in gear? Could you have it so low that any flutter in the carb is causing a stall? Maybe try raising the in gear idle a touch....just and idea.
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Re: Car stalls on hard braking
[Re: 6365Abody]
#31415
10/04/06 12:10 AM
10/04/06 12:10 AM
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Posts: 4,150 VA
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Quote:
I had a thought. My first thought was carb floats, and it still may be something wrong with them. But after you said braking, esp when you brake hard, I think you may have a vacuum leak in your braking system, that is, if you have power brakes. I think it maybe a problem with both the brakes and the floats. Try different things with the brakes, such as breaking with the vacuum line pinched off and see if the engine still dies.
Manual Brakes, Manual steering and a 4-speed.
Only vacuum connection is a vacumm guage.
MikeE
Who knows? The Shadow Knows! But he ain't on this fraking forum!
"This restoration is a test,, It is ONLY a test, Had this been an actual Restoration I would have received instructions on what to do and where to get the MONEY!"
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Re: Car stalls on hard braking
[Re: RapidRunner]
#31417
10/04/06 12:35 AM
10/04/06 12:35 AM
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Joined: Jan 2003
Posts: 29,652 Hamtramck, PA
Alaskan_TA
Fluffy Balladeer
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Fluffy Balladeer
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Posts: 29,652
Hamtramck, PA
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I had a similar problem a couple yars ago. It ended up being the thrust bearing, it failed and on hard stops the crank shaft was actually sliding forward in the mains. When the middle counterweight contacted the main web of the engine block the engine would stall. It always restarted except for the last time.... When I tore it apart I found out that the crank shaft had eaten away about 1/4" of the material in the main web. I had to toss the engine it was so far gone. For your sake I hope it is a fuel issue. Barry
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Re: Car stalls on hard braking
[Re: Alaskan_TA]
#31418
10/04/06 12:58 AM
10/04/06 12:58 AM
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Man, Don't scare me like this. Is there any way to check for that short of dropping the oil pan? The motor is all new and clearences checked on assembly. I know that won't stop a defective bearing prblems but it should help revent a good one turnign bad... MikeE
Who knows? The Shadow Knows! But he ain't on this fraking forum!
"This restoration is a test,, It is ONLY a test, Had this been an actual Restoration I would have received instructions on what to do and where to get the MONEY!"
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Re: Car stalls on hard braking
[Re: captaindodge]
#31421
10/04/06 01:41 PM
10/04/06 01:41 PM
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Joined: Jan 2003
Posts: 9,436 Blair County,PA
62maxwgn
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Quote:
I have same problem with my AVS 4bbl on 440 Charger, but it will also stall on hard left turns but hard right turns are no problem. (this is with foot off gas pedal). Setting float level low seems to help but no solve the problem.
There is a fix for that in the old Tech Bullitens.If I can find it I'll post it.
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