...

Go Back   Lateral-g Forums > Technical Discussions > Engine
User Name
Password



Reply
 
Thread Tools Display Modes
  #1  
Old 10-16-2010, 03:02 PM
bearcat bearcat is offline
Member
 
Join Date: Mar 2008
Posts: 53
Thanks: 0
Thanked 0 Times in 0 Posts
Default Holley 1050 issues

I have an old and recently rebuilt holley. When I turn the electric fuel pump on, fuel pours out of the valves next to the main fuel bleeds through that vertical tube. The car also runs very rich, I cut back the pressure to 5psi for now. It died at idle a few times today and very difficult to get started. I never had this problem before, but was in much cooler location. Used to run great. Now runs rough at low RPM and is awesome when wide open.

Is the fuel spitting out normal with electric fuel pump?

How do I lean this thing out? Is it only the idle mixture adjustments?

Thanks for the help.
Reply With Quote
  #2  
Old 10-16-2010, 04:25 PM
camcojb's Avatar
camcojb camcojb is online now
Administrator
 
Join Date: Jul 2004
Location: Wilton, CA.
Posts: 13,307
Thanks: 7,016
Thanked 2,151 Times in 988 Posts
Default

if you have fuel flowing out the boosters or the vent tube at idle or with just the fuel pump on you either have too much fuel pressure, dirt/debis in the needle and seat so it can't close, float level too high, or a sunk float (which would hold the needle and seat open).

Don't drive the car this way, you're asking for a fire. First thing I would do is pull the needle and seat out and verify it's clean. Then I'd lower the float level down and slowly bring it up to the proper level. Sounds like your pressure is okay, and a sunk float can happen, but not likely.

Jody
__________________
Jody

PAST CAR PROJECTS

Like Lateral-G on Facebook!

Follow Lateral-G on Instagram!

SPECIAL THANKS TO:
Jacob Ehlers and Amsoil for the lubricants and degreasers for my 70 Chevelle project
Shannon at Modo Innovations for the cool billet DBW bracket
Roadster Shop for their Chevelle SPEC Chassis
Dakota Digital for their Chevelle HDX Gauge Package
Painless Performance for their wiring harness

Ron Davis Radiators for their radiator and fan assembly.
Baer Brakes for their front and rear brakes

Texas Speed and Performance for their 427 LS Stroker
American Powertrain for their ProFit Magnum T56 kit
Currie Enterprises for their 9" Third Member
Forgeline for their GF3 Wheels
McLeod Racing for their RXT street twin clutch
Ididit for their steering column
Holley for their EFI and engine parts
Lokar and Clayton Machine for their pedals and door and window handles
Morris Classic Concepts for their 3 point belts and side mirrors
Thermotec for their heat sleeve and sound deadening products
Restomod Air for their Tru Mod A/C kit
Mightymouse Solutions for their catch can
Magnaflow for their 3" exhaust system
Aeromotive for their dual Phantom fuel system
Vintage Air for their new Mid Mount LS front drive
Hydratech Braking for their hydroboost system
Borgeson for their stainless steering shaft and u joints
Eddie Motorsports for their hood and trunk hinges and misc parts
TMI Products for their seats, door panels, and dash pad
Rock Valley Antique Auto Parts for their stainless fuel tank
Reply With Quote
  #3  
Old 10-16-2010, 04:29 PM
bearcat bearcat is offline
Member
 
Join Date: Mar 2008
Posts: 53
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Thanks Jody....after further investigating......I found the rear to venturis are missing the idle adjustment screw. Could this lead to the problem as well or is this in addition. I got it running enough to get the car in the garage (slight hill where I live) and I smell of gasoline big time. I am not doing anything until I can get my hands on these screws. I think I may have 2 issues.
Reply With Quote
  #4  
Old 10-16-2010, 04:43 PM
camcojb's Avatar
camcojb camcojb is online now
Administrator
 
Join Date: Jul 2004
Location: Wilton, CA.
Posts: 13,307
Thanks: 7,016
Thanked 2,151 Times in 988 Posts
Default

Quote:
Originally Posted by bearcat View Post
Thanks Jody....after further investigating......I found the rear to venturis are missing the idle adjustment screw. Could this lead to the problem as well or is this in addition. I got it running enough to get the car in the garage (slight hill where I live) and I smell of gasoline big time. I am not doing anything until I can get my hands on these screws. I think I may have 2 issues.
can you post a pic of what you're referring to? I'm confused...........
__________________
Jody

PAST CAR PROJECTS

Like Lateral-G on Facebook!

Follow Lateral-G on Instagram!

SPECIAL THANKS TO:
Jacob Ehlers and Amsoil for the lubricants and degreasers for my 70 Chevelle project
Shannon at Modo Innovations for the cool billet DBW bracket
Roadster Shop for their Chevelle SPEC Chassis
Dakota Digital for their Chevelle HDX Gauge Package
Painless Performance for their wiring harness

Ron Davis Radiators for their radiator and fan assembly.
Baer Brakes for their front and rear brakes

Texas Speed and Performance for their 427 LS Stroker
American Powertrain for their ProFit Magnum T56 kit
Currie Enterprises for their 9" Third Member
Forgeline for their GF3 Wheels
McLeod Racing for their RXT street twin clutch
Ididit for their steering column
Holley for their EFI and engine parts
Lokar and Clayton Machine for their pedals and door and window handles
Morris Classic Concepts for their 3 point belts and side mirrors
Thermotec for their heat sleeve and sound deadening products
Restomod Air for their Tru Mod A/C kit
Mightymouse Solutions for their catch can
Magnaflow for their 3" exhaust system
Aeromotive for their dual Phantom fuel system
Vintage Air for their new Mid Mount LS front drive
Hydratech Braking for their hydroboost system
Borgeson for their stainless steering shaft and u joints
Eddie Motorsports for their hood and trunk hinges and misc parts
TMI Products for their seats, door panels, and dash pad
Rock Valley Antique Auto Parts for their stainless fuel tank
Reply With Quote
  #5  
Old 10-16-2010, 05:21 PM
bearcat bearcat is offline
Member
 
Join Date: Mar 2008
Posts: 53
Thanks: 0
Thanked 0 Times in 0 Posts
Default

There are the 2 sides of the carb. You can see that the rear of the carb on both sides is missing the idle adjustment screw. At least that is what I think it is. Thanks for the input!!
Attached Images
    
Reply With Quote
  #6  
Old 10-16-2010, 05:31 PM
camcojb's Avatar
camcojb camcojb is online now
Administrator
 
Join Date: Jul 2004
Location: Wilton, CA.
Posts: 13,307
Thanks: 7,016
Thanked 2,151 Times in 988 Posts
Default

there are a lot of four barrel Holleys that do not have secondary idle mixture adjustments. Those look like blank holes to me, like a screw could not even be installed. Take a close look and let us know.

I'm still recommending taking a look at the needle and seats for debris, as well as making sure the float levels are not too high.
__________________
Jody

PAST CAR PROJECTS

Like Lateral-G on Facebook!

Follow Lateral-G on Instagram!

SPECIAL THANKS TO:
Jacob Ehlers and Amsoil for the lubricants and degreasers for my 70 Chevelle project
Shannon at Modo Innovations for the cool billet DBW bracket
Roadster Shop for their Chevelle SPEC Chassis
Dakota Digital for their Chevelle HDX Gauge Package
Painless Performance for their wiring harness

Ron Davis Radiators for their radiator and fan assembly.
Baer Brakes for their front and rear brakes

Texas Speed and Performance for their 427 LS Stroker
American Powertrain for their ProFit Magnum T56 kit
Currie Enterprises for their 9" Third Member
Forgeline for their GF3 Wheels
McLeod Racing for their RXT street twin clutch
Ididit for their steering column
Holley for their EFI and engine parts
Lokar and Clayton Machine for their pedals and door and window handles
Morris Classic Concepts for their 3 point belts and side mirrors
Thermotec for their heat sleeve and sound deadening products
Restomod Air for their Tru Mod A/C kit
Mightymouse Solutions for their catch can
Magnaflow for their 3" exhaust system
Aeromotive for their dual Phantom fuel system
Vintage Air for their new Mid Mount LS front drive
Hydratech Braking for their hydroboost system
Borgeson for their stainless steering shaft and u joints
Eddie Motorsports for their hood and trunk hinges and misc parts
TMI Products for their seats, door panels, and dash pad
Rock Valley Antique Auto Parts for their stainless fuel tank
Reply With Quote
  #7  
Old 10-17-2010, 07:13 AM
bearcat bearcat is offline
Member
 
Join Date: Mar 2008
Posts: 53
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Thanks. Of course I am now out of town for a couple of weeks before I can screw with it. I'll let ya know. Thanks again.
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 05:46 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright Lateral-g.net