eddlebrock carb problums
Thread Starter
|
Freshman User
Joined: Dec 2013
Posts: 34
Likes: 0
eddlebrock carb problums
i recently put an eddlebrock 650 performer carb and a eddlebrock intake, it ran great when i first put it on a few weeks ago, i was driving today and it just cut out, i pulled over and cranked it and smelled gas, i took the air cleaner of and saw gas pooring out of the carb. I took the carb of and took it apart and the floats and needles look fine and nothing was stuck, does anyone have an idea what it is, the carb is just filling up with gas when it is cranking. i know it is getting spark when i pull the fuel line of and crank it, it starts up and i plug the fuel line back in and it floods again and cuts out. Any input would be great.
Postmaster
Joined: Nov 2009
Posts: 4,575
Likes: 5
From: Broken Arrow , OK
The Edelbrocks only like about 5.5 psi of fuel pressure. A lot of OEM pumps put out 7 psi or more. You may need to run a regulator in front of it.
P.S. That typo in the title may keep some of the gurus from reading your thread. You might want to correct it if you can.
P.S. That typo in the title may keep some of the gurus from reading your thread. You might want to correct it if you can.
Postmaster
Joined: Nov 2009
Posts: 4,575
Likes: 5
From: Broken Arrow , OK
This is right from Edelbrocks page:
My carburetor is flooding, what do I check?
Carburetor flooding can be cause by the following conditions. First, verify, with a fuel pressure gauge that the pressure does not exceed 6.5 psi. Floats should be set to the factory spec of 7/16, (see carburetor owners manual). Needles & Seats can be clogged with debris, not allowing them to close. They can be cleaned and checked when the float level is being verified. Floats can be sinking due to a leak. Verify floats are free of any fluid by shaking the float, or submersing it in a safe, non flammable fluid.
My carburetor is flooding, what do I check?
Carburetor flooding can be cause by the following conditions. First, verify, with a fuel pressure gauge that the pressure does not exceed 6.5 psi. Floats should be set to the factory spec of 7/16, (see carburetor owners manual). Needles & Seats can be clogged with debris, not allowing them to close. They can be cleaned and checked when the float level is being verified. Floats can be sinking due to a leak. Verify floats are free of any fluid by shaking the float, or submersing it in a safe, non flammable fluid.
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Bruno is right with what he posted. I'm betting that as quickly as it seems to have come on that it is junk in the fuel. Have you checked the fuel filter? How old is the tank? Did the truck sit for a long time?
I've seen this happen with Edelbrocks/Carters, Holleys, Autolight/Motorcrafts, etc. Clean fuel is essential, and sometimes it isn't visible stuff. I once had gum of some kind that caused similar problems on a Holley.
I've seen this happen with Edelbrocks/Carters, Holleys, Autolight/Motorcrafts, etc. Clean fuel is essential, and sometimes it isn't visible stuff. I once had gum of some kind that caused similar problems on a Holley.
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Probably it is part of the problem, but it isn't the whole problem. You should put a regulator ahead of the carb and set it at 5.5 psi.
But, since the problem started suddenly and it isn't likely the pressure has changed, that's not all of the problem. I would pull the top of the carb and clean the tips of the needles with a soft cloth. And, clean the seats with a Q-tip. Further, if there is any junk in the bowl clean it out. But, if there is then you know junk is getting past the filter, so check the filter.
As previously said, I've seen situations where gum or varnish in a new tank of fuel will cause this. And cleaning the needles and seats would only last for a few miles - until a heavy dose of fuel system cleaner was run through the system.
But, since the problem started suddenly and it isn't likely the pressure has changed, that's not all of the problem. I would pull the top of the carb and clean the tips of the needles with a soft cloth. And, clean the seats with a Q-tip. Further, if there is any junk in the bowl clean it out. But, if there is then you know junk is getting past the filter, so check the filter.
As previously said, I've seen situations where gum or varnish in a new tank of fuel will cause this. And cleaning the needles and seats would only last for a few miles - until a heavy dose of fuel system cleaner was run through the system.
Thread
Thread Starter
Forum
Replies
Last Post
Dads76XLT
1973 - 1979 F-100 & Larger F-Series Trucks
10
Jul 28, 2017 03:30 AM
mjm1
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
4
Oct 2, 2011 05:37 AM
true
1948 - 1956 F1, F100 & Larger F-Series Trucks
7
Jun 1, 2007 01:39 PM
soundman502
Fuel Injection, Carburetion & Fuel System
27
Mar 9, 2007 03:40 AM
