Edlebrock performer 400 question
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 40
Likes: 0
Edlebrock performer 400 question
I installed a edlebrock intake and a motorcraft 4160 4 barrel carb on my 1978 400 modified. My problem is there is nowhere on the intake to hook up the tube for the hot air choke. When you give it some gas it sets the choke and the motor revs up.
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 40
Likes: 0
The carb is made by Holley. Are all Holley electric chokes the same. How do I find out which choke to order? Also if I put an electric choke on do I block off where the hot air tube goes I can feel vacuum there?
Logistics Pro
Joined: Feb 2000
Posts: 3,955
Likes: 50
From: Mesa
The kit on Summit shows a fitting and some hose to block off the vac part. Im not a holley guy but my guess is they are all the same.
http://www.summitracing.com/parts/hly-45-226/overview/
http://www.summitracing.com/parts/hly-45-226/overview/
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 40
Likes: 0
I think I may need this kit. It says it is for a model 4160. My carb is a Motorcraft 4160 made by Holley.
http://www.summitracing.com/parts/hly-45-223/overview/
http://www.summitracing.com/parts/hly-45-223/overview/
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 40
Likes: 0
I ordered an electric choke and installed it. The choke works good but when the motor warms up and the choke kicks off the carb runs very rich at idle. A lot of smoke at idle and strong fuel smell. Any idea what my problem is?
Trending Topics
Posting Guru
Joined: Nov 2011
Posts: 1,302
Likes: 5
From: Burlington, WI
You're running too rich. Use the idle mixture screws on the carb to tune the idle mixture (hence the screw's names). Theyre the 2screws on the front of the carb. To properly tune the carb, go get a vacuum gauge (assuming you don't already have one) and hook it up to manifold vacuum. Then tighten down both screws EQUALLY until they either bottom out or the engine stops running. Then back them out EQUALLY and watch you vacuum gaige. Back the screws out until you see the highest amount of vacuum on the gauge, then turn the screws in about an 1/8th of a turn.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 40
Likes: 0
My carb doesn't have idle mixture screws in the front of the carb like most. The instructions for the carb say The mixture screws are pre-set at the factory and require no adjustment. Maybe because it is a Motorcraft carb made by Holley it is an odd duck. The only mixture adjustment I can find on the carb is two white plastic screws one on each side of the front fuel bowl. I have turned them both ways and it made no change to the carb running rich. There are no other mixture screws that I can find on the carb.
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 40
Likes: 0
I took the plastic caps off and the two screws makes no change in the rich condition they can be all the way in or all the way out and it still smokes black at idle and the vacum gauge reads 17-18 if the two screws are in or out.
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 40
Likes: 0
I agree the carb is new the guy had it for a few years but it sat on the shelf and he never used it. I have the carb set at 650-700rpm for idle if you rev the motor it pours black smoke and you let off and it almost will die but it will stumble and go back to idle. Also if I screw both screws in the doesn't die.
Posting Guru
Joined: Nov 2011
Posts: 1,302
Likes: 5
From: Burlington, WI
Im thinking that that carb hands down needs a rebuild. Even just hearing that it sat unused for a few years is reason enough to rebuild it. At this point your floats may be stuck, accelerator pump may be bad, etc.