Classic Mustangs List Archive
Failing Fuel Pump or Bad Carb??
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May 10, 1997 10:35 AM
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Mail From: Covah (email redacted)
I have a 68 coup that I am trying to get running again. It sat in a barn
for several years (about 5). The only way I have been able to get it
running is to pour a little gas (or even spray starter fluid) in the carb.
The carb I belive is a carter carb with 4 barrels. I've tuned the car up
(changed all the plugs/wires/distributer points and condenser).
When sitting in the car (with the motor off) pressing on the gas peddel I
can hear what sounds like a small pop comeing from the carb. I am assuming
it's trying to relase gas into the carberator.
When the engine is running and I step on the gas the acts as though it
wants to die untill I let off the gas. Slow acceleration is fine.
The choke knob inside the car seems to do nothing, but that maybe unrelated.
Thanks for any input you may have.
-C
Mail From: Covah (email redacted)
I have a 68 coup that I am trying to get running again. It sat in a barn
for several years (about 5). The only way I have been able to get it
running is to pour a little gas (or even spray starter fluid) in the carb.
The carb I belive is a carter carb with 4 barrels. I've tuned the car up
(changed all the plugs/wires/distributer points and condenser).
When sitting in the car (with the motor off) pressing on the gas peddel I
can hear what sounds like a small pop comeing from the carb. I am assuming
it's trying to relase gas into the carberator.
When the engine is running and I step on the gas the acts as though it
wants to die untill I let off the gas. Slow acceleration is fine.
The choke knob inside the car seems to do nothing, but that maybe unrelated.
Thanks for any input you may have.
-C
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mailbot
Mail List Archive Bot
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Topic Creator (OP)
May 10, 1997 09:07 PM
Joined 15 years ago
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This read-only message was archived from a public mail list.
Mail From: Mike Melson (email redacted)
The diaphragm in the accelerater pump is shot. It dry-rotted from
sitting. Rebuild your carb.
Mike
Covah wrote:
>
> I have a 68 coup that I am trying to get running again. It sat in a barn
> for several years (about 5). The only way I have been able to get it
> running is to pour a little gas (or even spray starter fluid) in the carb.
> The carb I belive is a carter carb with 4 barrels. I've tuned the car up
> (changed all the plugs/wires/distributer points and condenser).
>
> When sitting in the car (with the motor off) pressing on the gas peddel I
> can hear what sounds like a small pop comeing from the carb. I am assuming
> it's trying to relase gas into the carberator.
>
> When the engine is running and I step on the gas the acts as though it
> wants to die untill I let off the gas. Slow acceleration is fine.
>
> The choke knob inside the car seems to do nothing, but that maybe unrelated.
>
> Thanks for any input you may have.
> -C
Mail From: Mike Melson (email redacted)
The diaphragm in the accelerater pump is shot. It dry-rotted from
sitting. Rebuild your carb.
Mike
Covah wrote:
>
> I have a 68 coup that I am trying to get running again. It sat in a barn
> for several years (about 5). The only way I have been able to get it
> running is to pour a little gas (or even spray starter fluid) in the carb.
> The carb I belive is a carter carb with 4 barrels. I've tuned the car up
> (changed all the plugs/wires/distributer points and condenser).
>
> When sitting in the car (with the motor off) pressing on the gas peddel I
> can hear what sounds like a small pop comeing from the carb. I am assuming
> it's trying to relase gas into the carberator.
>
> When the engine is running and I step on the gas the acts as though it
> wants to die untill I let off the gas. Slow acceleration is fine.
>
> The choke knob inside the car seems to do nothing, but that maybe unrelated.
>
> Thanks for any input you may have.
> -C
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mailbot
Mail List Archive Bot
., Online, USA
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Topic Creator (OP)
May 11, 1997 06:40 AM
Joined 15 years ago
59,279 Posts
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This read-only message was archived from a public mail list.
Mail From: (email redacted) (email redacted)
In a message dated 97-05-10 12:13:47 EDT, you write:
<< When sitting in the car (with the motor off) pressing on the gas peddel I
can hear what sounds like a small pop comeing from the carb. I am assuming
it's trying to relase gas into the carberator.
When the engine is running and I step on the gas the acts as though it
wants to die untill I let off the gas. Slow acceleration is fine.
>>
Try checking the accelerator pump? With the engine OFF, look in the carb at
the same time you work the throttle back and forth, it should shoot a stream
of gas into the carb.
Ron
Mail From: (email redacted) (email redacted)
In a message dated 97-05-10 12:13:47 EDT, you write:
<< When sitting in the car (with the motor off) pressing on the gas peddel I
can hear what sounds like a small pop comeing from the carb. I am assuming
it's trying to relase gas into the carberator.
When the engine is running and I step on the gas the acts as though it
wants to die untill I let off the gas. Slow acceleration is fine.
>>
Try checking the accelerator pump? With the engine OFF, look in the carb at
the same time you work the throttle back and forth, it should shoot a stream
of gas into the carb.
Ron
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mailbot
Mail List Archive Bot
., Online, USA
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Topic Creator (OP)
May 12, 1997 02:32 PM
Joined 15 years ago
59,279 Posts
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This read-only message was archived from a public mail list.
Mail From: Kieron (email redacted)
At 12:50 PM 10/5/97 -0300, you wrote:
>I have a 68 coup that I am trying to get running again. It sat in a barn
>for several years (about 5). The only way I have been able to get it
>running is to pour a little gas (or even spray starter fluid) in the carb.
>The carb I belive is a carter carb with 4 barrels. I've tuned the car up
>(changed all the plugs/wires/distributer points and condenser).
>
>When sitting in the car (with the motor off) pressing on the gas peddel I
>can hear what sounds like a small pop comeing from the carb. I am assuming
>it's trying to relase gas into the carberator.
>
>When the engine is running and I step on the gas the acts as though it
>wants to die untill I let off the gas. Slow acceleration is fine.
>
>The choke knob inside the car seems to do nothing, but that maybe unrelated.
>
>Thanks for any input you may have.
I had the exact symptoms as you on my 68 302 and it turned out to be the
accelerator
pump, I'm not sure what it is on a Carter but mine was a plunger like pump
and bacause
it had been sitting with no fuel in the carb for a while the rubber plunger
shrunk, I
stuck another on (about 3 bucks) and all ok. I think the other type of
accelerator pump
is a diaphram system.
Hope this helps
Kieron
Perth West Australia
Mail From: Kieron (email redacted)
At 12:50 PM 10/5/97 -0300, you wrote:
>I have a 68 coup that I am trying to get running again. It sat in a barn
>for several years (about 5). The only way I have been able to get it
>running is to pour a little gas (or even spray starter fluid) in the carb.
>The carb I belive is a carter carb with 4 barrels. I've tuned the car up
>(changed all the plugs/wires/distributer points and condenser).
>
>When sitting in the car (with the motor off) pressing on the gas peddel I
>can hear what sounds like a small pop comeing from the carb. I am assuming
>it's trying to relase gas into the carberator.
>
>When the engine is running and I step on the gas the acts as though it
>wants to die untill I let off the gas. Slow acceleration is fine.
>
>The choke knob inside the car seems to do nothing, but that maybe unrelated.
>
>Thanks for any input you may have.
I had the exact symptoms as you on my 68 302 and it turned out to be the
accelerator
pump, I'm not sure what it is on a Carter but mine was a plunger like pump
and bacause
it had been sitting with no fuel in the carb for a while the rubber plunger
shrunk, I
stuck another on (about 3 bucks) and all ok. I think the other type of
accelerator pump
is a diaphram system.
Hope this helps
Kieron
Perth West Australia
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