Re: M38A1 -- Idle's OK, Stalls on Acceleration
 

Hi Steve,
A weak coil and/or spark plugs will act the same way, and will not fire
under more compression, as happens went you open the throttle. Which often
happens with the change over to twelve volts, the resistor is forgoten.
Choke the carburetor with your hand will tell instantly if it a
carburetor problem.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"steve.newhouse" <steve.newhouse@gmail.com> wrote in message
news:1187008366.574130.100780@g4g2000hsf.googlegro ups.com...
> Hi,
>
> I have a '53 M38A1 with what seems like a very "diagnosable" issue.
> The engine was rebuilt about 3 years ago and has a the correct carb.
> I leave it in MA during the winter, so it sits for about 8 months at a
> time before being driven again during the summer.
>
> On to the symptoms:
>
> The car was running fine until about two weeks ago when it began to
> stall out when you step on the gas. It starts and idles well, but as
> soon as I step on the gas, it revs a little bit then dies until I let
> up on the gas again.
>
> I'm not sure if the engine is flooding or starving (is there an easy
> way to tell)? Any idea what would cause this?
>
> -Steve
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: M38A1 -- Idle's OK, Stalls on Acceleration
 

Hi Steve,
A weak coil and/or spark plugs will act the same way, and will not fire
under more compression, as happens went you open the throttle. Which often
happens with the change over to twelve volts, the resistor is forgoten.
Choke the carburetor with your hand will tell instantly if it a
carburetor problem.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"steve.newhouse" <steve.newhouse@gmail.com> wrote in message
news:1187008366.574130.100780@g4g2000hsf.googlegro ups.com...
> Hi,
>
> I have a '53 M38A1 with what seems like a very "diagnosable" issue.
> The engine was rebuilt about 3 years ago and has a the correct carb.
> I leave it in MA during the winter, so it sits for about 8 months at a
> time before being driven again during the summer.
>
> On to the symptoms:
>
> The car was running fine until about two weeks ago when it began to
> stall out when you step on the gas. It starts and idles well, but as
> soon as I step on the gas, it revs a little bit then dies until I let
> up on the gas again.
>
> I'm not sure if the engine is flooding or starving (is there an easy
> way to tell)? Any idea what would cause this?
>
> -Steve
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: M38A1 -- Idle's OK, Stalls on Acceleration
 

Hi Steve,
A weak coil and/or spark plugs will act the same way, and will not fire
under more compression, as happens went you open the throttle. Which often
happens with the change over to twelve volts, the resistor is forgoten.
Choke the carburetor with your hand will tell instantly if it a
carburetor problem.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"steve.newhouse" <steve.newhouse@gmail.com> wrote in message
news:1187008366.574130.100780@g4g2000hsf.googlegro ups.com...
> Hi,
>
> I have a '53 M38A1 with what seems like a very "diagnosable" issue.
> The engine was rebuilt about 3 years ago and has a the correct carb.
> I leave it in MA during the winter, so it sits for about 8 months at a
> time before being driven again during the summer.
>
> On to the symptoms:
>
> The car was running fine until about two weeks ago when it began to
> stall out when you step on the gas. It starts and idles well, but as
> soon as I step on the gas, it revs a little bit then dies until I let
> up on the gas again.
>
> I'm not sure if the engine is flooding or starving (is there an easy
> way to tell)? Any idea what would cause this?
>
> -Steve
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: M38A1 -- Idle's OK, Stalls on Acceleration
 

in case you don't know, the accelerator pump is a little lever on the
carburetor, usually on the top, with a linkage arm attached to it. The arm
usually has multiple hole in it for adjustment purposes. I would change the
filter, if that doesnt cure it, adjust the linkage so that it has a longer
stroke, providing more fuel per stroke. If that works, you probably need a
carb rebuild or can get by for awhile with that adjustment. There are rubber
seals probably wearing out, causing less fuel to be delivered per stroke if
that is the fix. What you are experiencing with your carb is a common
problem, and is a off idle stumble.....very well known to mechanics.

c wrote:
>> Hi,
>>
>[quoted text clipped - 14 lines]
>>
>> -Steve
>
>Like Mike said, it could be a fuel filter, especially considering how
>much the vehicle sits. You might also want to check and make sure that
>the accelerator pump is functioning properly. When you open the
>throttle, you should see a good stream of fuel coming out of the
>accelerator pump nozzle.
>
>Chris

--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx/jeep-cars/200708/1

Re: M38A1 -- Idle's OK, Stalls on Acceleration
 

in case you don't know, the accelerator pump is a little lever on the
carburetor, usually on the top, with a linkage arm attached to it. The arm
usually has multiple hole in it for adjustment purposes. I would change the
filter, if that doesnt cure it, adjust the linkage so that it has a longer
stroke, providing more fuel per stroke. If that works, you probably need a
carb rebuild or can get by for awhile with that adjustment. There are rubber
seals probably wearing out, causing less fuel to be delivered per stroke if
that is the fix. What you are experiencing with your carb is a common
problem, and is a off idle stumble.....very well known to mechanics.

c wrote:
>> Hi,
>>
>[quoted text clipped - 14 lines]
>>
>> -Steve
>
>Like Mike said, it could be a fuel filter, especially considering how
>much the vehicle sits. You might also want to check and make sure that
>the accelerator pump is functioning properly. When you open the
>throttle, you should see a good stream of fuel coming out of the
>accelerator pump nozzle.
>
>Chris

--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx/jeep-cars/200708/1

Re: M38A1 -- Idle's OK, Stalls on Acceleration
 

in case you don't know, the accelerator pump is a little lever on the
carburetor, usually on the top, with a linkage arm attached to it. The arm
usually has multiple hole in it for adjustment purposes. I would change the
filter, if that doesnt cure it, adjust the linkage so that it has a longer
stroke, providing more fuel per stroke. If that works, you probably need a
carb rebuild or can get by for awhile with that adjustment. There are rubber
seals probably wearing out, causing less fuel to be delivered per stroke if
that is the fix. What you are experiencing with your carb is a common
problem, and is a off idle stumble.....very well known to mechanics.

c wrote:
>> Hi,
>>
>[quoted text clipped - 14 lines]
>>
>> -Steve
>
>Like Mike said, it could be a fuel filter, especially considering how
>much the vehicle sits. You might also want to check and make sure that
>the accelerator pump is functioning properly. When you open the
>throttle, you should see a good stream of fuel coming out of the
>accelerator pump nozzle.
>
>Chris

--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx/jeep-cars/200708/1

Re: M38A1 -- Idle's OK, Stalls on Acceleration
 

in case you don't know, the accelerator pump is a little lever on the
carburetor, usually on the top, with a linkage arm attached to it. The arm
usually has multiple hole in it for adjustment purposes. I would change the
filter, if that doesnt cure it, adjust the linkage so that it has a longer
stroke, providing more fuel per stroke. If that works, you probably need a
carb rebuild or can get by for awhile with that adjustment. There are rubber
seals probably wearing out, causing less fuel to be delivered per stroke if
that is the fix. What you are experiencing with your carb is a common
problem, and is a off idle stumble.....very well known to mechanics.

c wrote:
>> Hi,
>>
>[quoted text clipped - 14 lines]
>>
>> -Steve
>
>Like Mike said, it could be a fuel filter, especially considering how
>much the vehicle sits. You might also want to check and make sure that
>the accelerator pump is functioning properly. When you open the
>throttle, you should see a good stream of fuel coming out of the
>accelerator pump nozzle.
>
>Chris

--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx/jeep-cars/200708/1

Re: M38A1 -- Idle's OK, Stalls on Acceleration
 

On Mon, 13 Aug 2007 12:32:46 -0000, "steve.newhouse"
<steve.newhouse@gmail.com> wrote:

>Hi,
>
>I have a '53 M38A1 with what seems like a very "diagnosable" issue.
>The engine was rebuilt about 3 years ago and has a the correct carb.
>I leave it in MA during the winter, so it sits for about 8 months at a
>time before being driven again during the summer.
>
>On to the symptoms:
>
>The car was running fine until about two weeks ago when it began to
>stall out when you step on the gas. It starts and idles well, but as
>soon as I step on the gas, it revs a little bit then dies until I let
>up on the gas again.
>
>I'm not sure if the engine is flooding or starving (is there an easy
>way to tell)? Any idea what would cause this?
>
>-Steve

I agree with Chris & Muddog that it sounds like an accelerator pump
problem. Sitting that long without running could cause the rubber
seals to dry up. Changing the fuel filter would also be a wise idea
because old gasoline will develope into a "laquer". If you let it sit
very long, I would reccomend using "Stabil" (gas stabilizer) to help
prevent tha laquer build up

Good luck,
Darrell

Re: M38A1 -- Idle's OK, Stalls on Acceleration
 

On Mon, 13 Aug 2007 12:32:46 -0000, "steve.newhouse"
<steve.newhouse@gmail.com> wrote:

>Hi,
>
>I have a '53 M38A1 with what seems like a very "diagnosable" issue.
>The engine was rebuilt about 3 years ago and has a the correct carb.
>I leave it in MA during the winter, so it sits for about 8 months at a
>time before being driven again during the summer.
>
>On to the symptoms:
>
>The car was running fine until about two weeks ago when it began to
>stall out when you step on the gas. It starts and idles well, but as
>soon as I step on the gas, it revs a little bit then dies until I let
>up on the gas again.
>
>I'm not sure if the engine is flooding or starving (is there an easy
>way to tell)? Any idea what would cause this?
>
>-Steve

I agree with Chris & Muddog that it sounds like an accelerator pump
problem. Sitting that long without running could cause the rubber
seals to dry up. Changing the fuel filter would also be a wise idea
because old gasoline will develope into a "laquer". If you let it sit
very long, I would reccomend using "Stabil" (gas stabilizer) to help
prevent tha laquer build up

Good luck,
Darrell

Re: M38A1 -- Idle's OK, Stalls on Acceleration
 

On Mon, 13 Aug 2007 12:32:46 -0000, "steve.newhouse"
<steve.newhouse@gmail.com> wrote:

>Hi,
>
>I have a '53 M38A1 with what seems like a very "diagnosable" issue.
>The engine was rebuilt about 3 years ago and has a the correct carb.
>I leave it in MA during the winter, so it sits for about 8 months at a
>time before being driven again during the summer.
>
>On to the symptoms:
>
>The car was running fine until about two weeks ago when it began to
>stall out when you step on the gas. It starts and idles well, but as
>soon as I step on the gas, it revs a little bit then dies until I let
>up on the gas again.
>
>I'm not sure if the engine is flooding or starving (is there an easy
>way to tell)? Any idea what would cause this?
>
>-Steve

I agree with Chris & Muddog that it sounds like an accelerator pump
problem. Sitting that long without running could cause the rubber
seals to dry up. Changing the fuel filter would also be a wise idea
because old gasoline will develope into a "laquer". If you let it sit
very long, I would reccomend using "Stabil" (gas stabilizer) to help
prevent tha laquer build up

Good luck,
Darrell