[DeTomaso] Engine stalls on start up -Help!!!
Julian Kift
julian_kift at hotmail.com
Mon Jul 29 15:53:41 EDT 2019
Send the carb to Bob at Comeptition Carburetion here in Reno, he's a legend. He'll rebuild and tune it to your engine specs and it will work a charm straight out of the box.
I only recently realized he does distributors as well, re-bushes and reworks them removing all the inherent slop. A friend had one done for a sprint car and was amazed at the impact.
https://www.competitioncarburetion.com/
Julian
________________________________
From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of Pantdino via DeTomaso <detomaso at server.detomasolist.com>
Sent: Sunday, July 28, 2019 3:27 PM
To: marshallgsmith at sbcglobal.net <marshallgsmith at sbcglobal.net>
Cc: detomaso at server.detomasolist.com <detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Engine stalls on start up -Help!!!
AFAIK carbs have 3 circuits-- idle, cruise, and acceleration. If the car only runs if you are pumping the gas pedal, it means the acceleration circuit is the only one giving the engine fuel. Every time you depress the pedal quickly the acceleration pump squirts in some fuel. If it idles but dies as soon as you slowly give it gas, it means the cruise circuit is not working-- probably a clogged jet.
If you have the correct fuel pressure, I suspect you're looking at a carb rebuild. No big deal. I'm mainly a Weber guy, so I don't know if you carb has jets you can access from outside to check them for debris.
Jim
-----Original Message-----
From: marshallgsmith <marshallgsmith at sbcglobal.net>
To: Julian Kift <julian_kift at hotmail.com>; detomasoregistry at gmail.com <detomasoregistry at gmail.com>; Panteratime <panteratime at aol.com>
Cc: detomaso at server.detomasolist.com <detomaso at server.detomasolist.com>
Sent: Sat, Jul 27, 2019 7:43 pm
Subject: Re: [DeTomaso] Engine stalls on start up -Help!!!
First things first. Pull the fuel line off and see if you have fuel
pressure from the pump.
Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------
From: Julian Kift <julian_kift at hotmail.com>
Date: 7/27/19 3:43 PM (GMT-09:00)
To: detomasoregistry at gmail.com, Panteratime <panteratime at aol.com>
Cc: detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Engine stalls on start up -Help!!!
If it's that low on gas you may have started picking up the dregs in
the tank, which may have some water in it given hygroscopic nature of
ethanol blended fuels. Also fuel evaporates from fuel bowls etc. and
leaves a layer of varnish which takes a little while to wash back off.
Do you aheva cold satrt (choke) circuit? If so is it manual or electric
and functional?
Modern AGM batteries don't like being fully discharged, in fact it cuts
their life in half, I always keep a trickle charger on the car when not
in use for more than a week, there is likely always some level of
parasitic drain.
Julian
________________________________
From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of
Panteratime via DeTomaso <detomaso at server.detomasolist.com>
Sent: Saturday, July 27, 2019 4:01 PM
To: detomasoregistry at gmail.com <detomasoregistry at gmail.com>
Cc: detomaso at server.detomasolist.com <detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Engine stalls on start up -Help!!!
thanks Chuck--Will put trickle charge on this evening. step 1 !
-----Original Message-----
From: The DeTomaso Registry Guy <detomasoregistry at gmail.com>
To: 'Panteratime' <panteratime at aol.com>
Cc: List DeTomaso Forum <detomaso at server.detomasolist.com>
Sent: Sat, Jul 27, 2019 5:48 pm
Subject: RE: [DeTomaso] Engine stalls on start up -Help!!!
Folks,Scenario: 1972-stock motor with Demon carb--ran great only a few
months ago. Took seats out ot reupholster. Car sat for a
month Car starts and stalls Give it gas-fights to stay running
Observations:Very low on gasAmmeter pinned to right the entire minute
the car was fighting to run.
Added some gas--definitely off E but not a 1/4 tank ran much longer
but still had to feather gas to keep running--Ammeter pinned to
right all the time car was struggling to keep running
I haven't run the car in a month.
Suggestions? Thoughts? Thanks!!!
>>>First deal with the charging issue.
Any car (battery) stored for a while will likely need a top-off charge
before driving.
It can be hard on the system when at max charge for longer periods.
Why strain the car's
electrical system.
*Put a trickle charger directly on the battery until charged.
As to the starting or running, it might be the fuel pump (weak, old, or
diaphragm failing).
You symptoms may be fuel starvation.
Should I continue ?
Chuck
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-------------- next part --------------
Send the carb to Bob at Comeptition Carburetion here in Reno, he's a
legend. He'll rebuild and tune it to your engine specs and it will work
a charm straight out of the box.
I only recently realized he does distributors as well, re-bushes and
reworks them removing all the inherent slop. A friend had one done for
a sprint car and was amazed at the impact.
[1]https://www.competitioncarburetion.com/
Julian
__________________________________________________________________
From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of
Pantdino via DeTomaso <detomaso at server.detomasolist.com>
Sent: Sunday, July 28, 2019 3:27 PM
To: marshallgsmith at sbcglobal.net <marshallgsmith at sbcglobal.net>
Cc: detomaso at server.detomasolist.com <detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Engine stalls on start up -Help!!!
AFAIK carbs have 3 circuits-- idle, cruise, and acceleration. If the
car only runs if you are pumping the gas pedal, it means the
acceleration circuit is the only one giving the engine fuel. Every time
you depress the pedal quickly the acceleration pump squirts in some
fuel. If it idles but dies as soon as you slowly give it gas, it means
the cruise circuit is not working-- probably a clogged jet.
If you have the correct fuel pressure, I suspect you're looking at a
carb rebuild. No big deal. I'm mainly a Weber guy, so I don't know if
you carb has jets you can access from outside to check them for debris.
Jim
-----Original Message-----
From: marshallgsmith <marshallgsmith at sbcglobal.net>
To: Julian Kift <julian_kift at hotmail.com>; detomasoregistry at gmail.com
<detomasoregistry at gmail.com>; Panteratime <panteratime at aol.com>
Cc: detomaso at server.detomasolist.com <detomaso at server.detomasolist.com>
Sent: Sat, Jul 27, 2019 7:43 pm
Subject: Re: [DeTomaso] Engine stalls on start up -Help!!!
First things first. Pull the fuel line off and see if you have fuel
pressure from the pump.
Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------
From: Julian Kift <julian_kift at hotmail.com>
Date: 7/27/19 3:43 PM (GMT-09:00)
To: detomasoregistry at gmail.com, Panteratime <panteratime at aol.com>
Cc: detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Engine stalls on start up -Help!!!
If it's that low on gas you may have started picking up the dregs in
the tank, which may have some water in it given hygroscopic nature of
ethanol blended fuels. Also fuel evaporates from fuel bowls etc. and
leaves a layer of varnish which takes a little while to wash back
off.
Do you aheva cold satrt (choke) circuit? If so is it manual or
electric
and functional?
Modern AGM batteries don't like being fully discharged, in fact it
cuts
their life in half, I always keep a trickle charger on the car when
not
in use for more than a week, there is likely always some level of
parasitic drain.
Julian
________________________________
From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf
of
Panteratime via DeTomaso <detomaso at server.detomasolist.com>
Sent: Saturday, July 27, 2019 4:01 PM
To: detomasoregistry at gmail.com <detomasoregistry at gmail.com>
Cc: detomaso at server.detomasolist.com
<detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Engine stalls on start up -Help!!!
thanks Chuck--Will put trickle charge on this evening. step 1 !
-----Original Message-----
From: The DeTomaso Registry Guy <detomasoregistry at gmail.com>
To: 'Panteratime' <panteratime at aol.com>
Cc: List DeTomaso Forum <detomaso at server.detomasolist.com>
Sent: Sat, Jul 27, 2019 5:48 pm
Subject: RE: [DeTomaso] Engine stalls on start up -Help!!!
Folks,Scenario: 1972-stock motor with Demon carb--ran great only a
few
months ago. Took seats out ot reupholster. Car sat for a
month Car starts and stalls Give it gas-fights to stay running
Observations:Very low on gasAmmeter pinned to right the entire minute
the car was fighting to run.
Added some gas--definitely off E but not a 1/4 tank ran much longer
but still had to feather gas to keep running--Ammeter pinned to
right all the time car was struggling to keep running
I haven't run the car in a month.
Suggestions? Thoughts? Thanks!!!
>>>First deal with the charging issue.
Any car (battery) stored for a while will likely need a top-off
charge
before driving.
It can be hard on the system when at max charge for longer periods.
Why strain the car's
electrical system.
*Put a trickle charger directly on the battery until charged.
As to the starting or running, it might be the fuel pump (weak, old,
or
diaphragm failing).
You symptoms may be fuel starvation.
Should I continue ?
Chuck
_______________________________________________
Detomaso Email List is not managed by POCA
Posted emails must not exceed 1.5 Megabytes
DeTomaso mailing list
DeTomaso at server.detomasolist.com
[2]http://server.detomasolist.com/mailman/listinfo/detomaso
To manage your subscription (change email address, unsubscribe, etc.)
use the links above.
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list. They also grant the list owner permission to maintain an archive
or approve the archiving of list messages.
References
1. https://www.competitioncarburetion.com/
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