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Re: Continuing with the troubleshooting... distributor...
[Re: cal_gecko]
#1237684
05/24/12 02:16 PM
05/24/12 02:16 PM
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Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406
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I Live Here
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
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I wrote this back on May 8-9 Quote:
The regulator you have is a POS if the pressure is creeping. If you set it at one pressure and it goes above that pressure, it's really not doing anything worthwhile!
There were about 4+ other post reiterating this issue in the same thread and you moved on to other things. I know I told you to look into the carb early on to see if it was dripping, NOW you decide to do it. Could have saved yourself a lot of grief. Take the carb top off when you don't address the root issue, pull the front of the engine down, etc.
I know that I suggested you FIX the fuel pressure so this entire exercise may have been because you chose to ignore doing SIMPLE things to address known issues.
How many sites were you on asking for help? 3, 4, 5?
I appreciate the fact that this is not your strength, however, you MUST solve known issues first, one at a time to get anywhere with these things. If you work on this stuff like the keystone cops or Chinese fire drill, you will be exactly how you are, FRUSTRATED! People trying to help you also get frustrated because you ignore solid suggestions on what to fix. I hope you get it solved and put a fricken fuel pressure regulator on the car that does what it's supposed to do!
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Re: Continuing with the troubleshooting... distributor...
[Re: feets]
#1237685
05/24/12 02:19 PM
05/24/12 02:19 PM
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Joined: Aug 2003
Posts: 12,589
Sacramento, CA
cal_gecko
OP
I Live Here
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OP
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Posts: 12,589
Sacramento, CA
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Quote:
You've been blowing a lot of fuel through those primaries. Perhaps blowing it up too. You can tell by the color.
Your fuel pressure is probably the cause of this whole mess.
Aren't you glad you did all that other stuff?
If this whole mess is a result of me saving a few bucks by buying a used Holley fuel pump, I will be SO freaking PO'd!!
Granted, I'm not crazy about the fuel pump - it's so damn loud, I can hear it over my headers and 3" exhaust
So - do I go buy a brand new Holley pump, or do I buy the fuel pump repair kit ?
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Re: Continuing with the troubleshooting... distributor...
[Re: superbeedave]
#1237689
05/24/12 02:35 PM
05/24/12 02:35 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
So you have a 750 Edelbrock Huh? Mmm!!  Try another carb and then try a different fuel pump. But not at the same time.
He has a 1405 which is a 600 cfm manuel choke carburator.
My 1405 is feed by a mechanical fuel pump with no regulator.
There's no way I would use the blue pump on the street because it vapor locks and is way too noisey for me. I learned the hard way also 20+ years ago with one of those blue pumps on my street car, they suck imo.
I don't think you need a new fuel pump, just have to regulate the one you have now. I was never able to control my pressure with a holley regulator when I ran a blue pump because I think I was not using a retun line at the time. I have never got my holley regulator to work right without a return line.
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Re: Continuing with the troubleshooting... distributor...
[Re: autoxcuda]
#1237690
05/24/12 02:39 PM
05/24/12 02:39 PM
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Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406
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I Live Here
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
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Quote:
For such a stock rebuild, why does it have an electric fuel pump?
The keep it simple rule applies. Doesn't need an MSD either. For a first time rebuild, get it running with stock stuff then add the trick stuff one by one.
Nothing wrong with any of that stuff, provided you get it set up correctly. I've had stock fuel pumps blow ede carbs up with too much fuel pressure so that's not a guarantee it will work OOTB.
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Re: Continuing with the troubleshooting... distributor...
[Re: RobX4406]
#1237691
05/24/12 02:59 PM
05/24/12 02:59 PM
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Joined: Aug 2003
Posts: 12,589
Sacramento, CA
cal_gecko
OP
I Live Here
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OP
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Joined: Aug 2003
Posts: 12,589
Sacramento, CA
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RobX4406 - I wasn't trying to ignore or discount anyone's recommendations for troubleshooting.. I was getting a ton of different things to look into from different people.. as far as the fuel pressure issue, I thought i had it taken care of by dialing the regulator back almost all the way.. and I didn't realize until last night that the 'boosters' that I was supposed to be looking out for fuel overflow from, were the ones in the front of the carb.. I was looking at the ones in the rear opening of the carb, and didn't realize that the ones in the front should NOT have gas coming out at idle..
When I called Holley today about the pressure creep, they told me that the regulators really don't have anything in them that could cause it to not work properly, but his thought was that my pump may be putting out way too much pressure - more than the reg can handle.
To the questions about why I went with an electric pump -
I did have a mechanical pump, but it was not moving any fuel... NONE... and it barely had any miles on it - I put it in about 6 yrs ago, and it barely had any use. So the guy who was working on some mechanical issues on the car (and the body work) was telling me that he never uses mech. pumps, and suggested going with the electric setup for reliability, since we couldn't get the mech. one to work.
I am also not a fan of the loud noise of the electric pump.. but at least it's getting gas from the tank to the carb, which my mechanical was unable to do.
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Re: Continuing with the troubleshooting... distributor...
[Re: cal_gecko]
#1237692
05/24/12 03:30 PM
05/24/12 03:30 PM
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Joined: Oct 2007
Posts: 3,890
Oregon
hooziewhatsit
master
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master
Joined: Oct 2007
Posts: 3,890
Oregon
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When I went to fire up my engine after rebuilding the top end I used the old pump and was getting no fuel to the carb either. I pulled it off and put a vacuum gauge on it, and moved the lever manually. It would pull a vacuum, then lose it immediately. The new pump pulled vacuum and held it in between pumps. Would also be pretty easy to check in the car also. May be worth trying a mechanical one again. Now I need to go see if my boosters are dripping  (wow, that sounds bad  )
If you ever find yourself in a fair fight, your tactics suck.
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Re: Continuing with the troubleshooting... distributor...
[Re: cal_gecko]
#1237694
05/24/12 03:34 PM
05/24/12 03:34 PM
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Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
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Quote:
RobX4406 - I wasn't trying to ignore or discount anyone's recommendations for troubleshooting.. I was getting a ton of different things to look into from different people.. as far as the fuel pressure issue, I thought i had it taken care of by dialing the regulator back almost all the way.. and I didn't realize until last night that the 'boosters' that I was supposed to be looking out for fuel overflow from, were the ones in the front of the carb.. I was looking at the ones in the rear opening of the carb, and didn't realize that the ones in the front should NOT have gas coming out at idle..
When I called Holley today about the pressure creep, they told me that the regulators really don't have anything in them that could cause it to not work properly, but his thought was that my pump may be putting out way too much pressure - more than the reg can handle.
Mark, you stated in one of the responses that it was set at 5 but was still moving up to 7ish. So it wasn't fixed and that was the issue I was talking about on wed that was unresolved. Put a regulator on it that actually works and see how it runs AND STOP DOING anything else to fix things.
BS on the creep reason from the holley tech, it's a known issue with those POS regulators. Some are good, others, brand new OOTB are junk.
One fix at a time and do the easy free stuff first! I don't care how many different suggestions you got. If you half a$$ed things you won't get anything resolved.
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Re: Continuing with the troubleshooting... distributor...
[Re: cogen80]
#1237696
05/24/12 05:56 PM
05/24/12 05:56 PM
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Joined: Aug 2003
Posts: 12,291
Kent, Wa
340SHORTY
Truck Nut
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Truck Nut
Joined: Aug 2003
Posts: 12,291
Kent, Wa
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Put a return line on the fuel system. That will help in the pump vapor locking and will also eliminate the pressure creep. but then again a stock pump will work fine if the eccentric is on the cam..
I am truckless..
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Re: Continuing with the troubleshooting... distributor...
[Re: cogen80]
#1237697
05/24/12 05:56 PM
05/24/12 05:56 PM
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Joined: Jan 2003
Posts: 28,067
Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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Mark,
Stop everything.
Replace the regulator. Until you control the fuel pressure there is nothing else you can do.
Report back once the fuel pressure issue is resolved and let us know how the engine behaves.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
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Re: Continuing with the troubleshooting... distributor...
[Re: feets]
#1237698
05/25/12 11:22 AM
05/25/12 11:22 AM
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Joined: Mar 2007
Posts: 12,008
Finally a HUSKER again
Moparnut426
I Live Here
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I Live Here
Joined: Mar 2007
Posts: 12,008
Finally a HUSKER again
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I agree, Get that fuel PSI to normal readings, If that corrects the engine running issue, Id toss that blue POS pump over your right shoulder, and get yourself a nice mechanical fuel pump, and run that through the regulator. Just my  ... 
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Re: Continuing with the troubleshooting... distributor...
[Re: 1_WILD_RT]
#1237701
05/26/12 01:43 PM
05/26/12 01:43 PM
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Joined: Aug 2003
Posts: 12,589
Sacramento, CA
cal_gecko
OP
I Live Here
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OP
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Sacramento, CA
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Sorry guys... yeah, I managed to find someone local who had a spare Edelbrock Performer 600cfm carb (identical to the one I have), and he was willing to let me borrow it for testing purposes. Night and DAY difference. Idles beautifully now.
Pressure is still higher than I'd like at idle.. it's getting up to 6psi according to the gauge .. .even when the pressure is dialed all the way down on the regulator. I'll go buy another new regulator today (irritating, because the one I'm using is brand new, and I don't have the receipt for it any more... so that's a waste of $30) and see if that makes a difference to the pressure creep. Also, seriously considering getting rid of the electric pump and going to a mechanical pump.. I hate the sound of the electric pump.. so loud it's stupid.
Anyways.. I'm buying the carb from the guy who let me borrow it... and I may tear into mine at some point to see if I can see what the problem was, but that's not a priority for me right now. I'm just really freakin happy that it's running well now.
Next up - figure out where it's leaking oil from... back of the oil pan/block is leaking.. but it's hard to tell if it's leaking from above that seal or at that seal...
So thankful to all the suggestions, advice and patience from folks who were trying to help me!!!
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Re: Continuing with the troubleshooting... distributor...
[Re: cal_gecko]
#1237702
05/26/12 06:27 PM
05/26/12 06:27 PM
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Joined: May 2009
Posts: 508
Cincinnati, Ohio
superbeedave
mopar
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mopar
Joined: May 2009
Posts: 508
Cincinnati, Ohio
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Congradulations on your success! Remember that the Edelbrock carbs. do not like fuel pressure over I believe it is approx. 6.5. That is what their catalogs say! Oops sorry! I didn't realize you posted that in a different thread.
Last edited by superbeedave; 05/26/12 06:29 PM.
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