fuel priming bulb for car that sits often?
#2456453
02/24/18 01:07 AM
02/24/18 01:07 AM
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Joined: May 2005
Posts: 803 Oklahoma
Mopar72Man
OP
super stock
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OP
super stock
Joined: May 2005
Posts: 803
Oklahoma
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I have a 70s dodge that gets driven one a month with a 360. I would like to be able to prime the edelbrock with fuel but don't particularly want to deal with an electronic pump of any sort. Has anyone used a typical marine priming bulb? I figure a few squeezes under the hood and i should get a head start on it.
72 Challenger - will be sublime, little 340 904, 8 3/4" - Under Construction
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Re: fuel priming bulb for car that sits often?
[Re: Mopar72Man]
#2456466
02/24/18 01:33 AM
02/24/18 01:33 AM
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Joined: Jan 2008
Posts: 2,363 Cotati, CA
Dave Hall
top fuel
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top fuel
Joined: Jan 2008
Posts: 2,363
Cotati, CA
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Damn! Bringing me back to the old family boat/Evinrude days! How about a tee with a valve in the fuel line to the carb? Then hook the bellows up to a gas can if you need to? Maybe one of these with a cap? I know that the guys racing in Stock have a slicker unit because NHRA checks their fuel all the time...I just don't know what it is???
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Re: fuel priming bulb for car that sits often?
[Re: Mopar72Man]
#2456574
02/24/18 11:16 AM
02/24/18 11:16 AM
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Joined: Nov 2010
Posts: 3,696 jersey
Spaceman Spiff
master
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master
Joined: Nov 2010
Posts: 3,696
jersey
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I don’t think you should have to prime the carb on something that gets driven once a month.
526 cubes of angry wedge, pushbutton shifted, 9 passenger killer!
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Re: fuel priming bulb for car that sits often?
[Re: Mopar72Man]
#2456585
02/24/18 11:48 AM
02/24/18 11:48 AM
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Joined: Feb 2003
Posts: 21,318 Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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On a boat motor, those bulbs are meant to be on the suction side. You want to pressurize it with fuel coming out of the mechanical pump? On the suction side, if there's any obstruction downstream the bulb will get sucked shut and you will run out of fuel. They work great on 2-strokes with their super low pressure fuel systems, however even there they can cause issues. I don't think it would work well long term but it would be a neat experiment. If you put a T in a the fuel line with shut-offs, a second fuel line going to your tank it would work.
If you've ever installed an electric fuel pump you will never go back. I put one on every carbed car I own. All I do is put the key in the run position, leave it there for 5 seconds or so while the fuel pump refills the bowls, pump the carb and start like normal. Even after sitting 6 months they fire up like nothing. A buddy of mine liked mine so much he put one on his school bus-camper that always used to take years of cranking now fires up easy. Other than a resto project I wouldn't mess with a mechanical fuel pump again.
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Re: fuel priming bulb for car that sits often?
[Re: Imrare]
#2456713
02/24/18 03:33 PM
02/24/18 03:33 PM
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Joined: Aug 2003
Posts: 43,277 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,277
Bend,OR USA
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The cranking involved in priming a carburetor that has been sitting for a spell has the added benefit of making sure everything is well oiled (by your oil pump) when the engine does spring to life. I'm thinking you are incorrect on cranking a BB Mopar with no oil pressure while filling the fuel bowls up This is one of the old SB Chevy racers myths, it is way better to have the motor stat immediately to spin the oil pump fast enough, above starter revolution speed, to have the motor running fast enough(above 500 RPM) to make oil pressure right away Mopars V8, all of the older ones, oil the top end through the cam shaft so you need twice as many revolutions on the camshaft, compared to the crankshaft, to get oil to the rocker arm shafts Do NOT grind on the starter to fill the fuel bowl after a car sits for more than three or four weeks due to the awful pump swill that evaporates and goes bad in less than a month
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: fuel priming bulb for car that sits often?
[Re: Sixpak]
#2458194
02/27/18 12:11 AM
02/27/18 12:11 AM
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Joined: Jan 2007
Posts: 7,664 IN
ahy
master
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master
Joined: Jan 2007
Posts: 7,664
IN
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The two carb vehicles I run got electric fuel pumps. Much faster starts after sitting, much faster hot starts after heat soak and vapor lock issues on hot days/heavy load eliminated.
PS: first is to get the fuel system, fuel lines, pump ect. in good shape. The electric pump comes after making sure the system is solid.
Last edited by ahy; 02/27/18 12:13 AM.
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Re: fuel priming bulb for car that sits often?
[Re: Alaskan_TA]
#2458261
02/27/18 08:32 AM
02/27/18 08:32 AM
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Joined: Feb 2003
Posts: 8,020 Pangaea
B5 Bee
master
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master
Joined: Feb 2003
Posts: 8,020
Pangaea
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I use an old plastic mustard bottle, cleaned well with gas in it.
Short squirt in carb & crank.
Take all normal safety precautions of course. That's what I use. Cheap and simple.
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Re: fuel priming bulb for car that sits often?
[Re: Mopar72Man]
#2459688
03/02/18 12:17 AM
03/02/18 12:17 AM
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Joined: Jan 2003
Posts: 5,791 Hamilton, Ontario Canada
Magnum
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master
Joined: Jan 2003
Posts: 5,791
Hamilton, Ontario Canada
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The root of the problem is the Edelbrock carb. They, like the Carter AFB feed the pump shot cylinder from the top of the bowl. So any evaporation and you have no pump shot. It also requires a lot of cranking to completely fill the bowl so you can finally have pump shot.
At least a Holley feed the pump shot from the bottom of the bowl. So even with 90% of the fuel from the bowl evaporated, you will still have pump shot. Which is what ALL of these car need to fire up on a cold start.
69 Super Bee, 93 Mustang LX, 04 Allure Super
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Re: fuel priming bulb for car that sits often?
[Re: Alaskan_TA]
#2459991
03/02/18 05:03 PM
03/02/18 05:03 PM
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Joined: Jan 2008
Posts: 3,886 Lost and Spaced
bboogieart
master
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master
Joined: Jan 2008
Posts: 3,886
Lost and Spaced
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I use an old plastic mustard bottle, cleaned well with gas in it.
Short squirt in carb & crank.
Take all normal safety precautions of course. This is basically what I do. Nothing fancy needed. I have a couple old trucks that go dry if sitting for any length of time. This always get 'em to fire up.
I have mechanical Aptitude. I can screw up anything.
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