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Author Topic: Edelbrock 1406 on a 59 Cadillac?  (Read 816 times)

Offline kib

  • Posts: 78
  • Name: Thore Kibsgaard
Edelbrock 1406 on a 59 Cadillac?
« on: July 14, 2012, 01:05:48 PM »
I had so many issues on my carb the Rochester 4 brl, adjusted and adjusted but with no luck so fare. The carb is nt old but rebuilt and expencive enough. Is there any of the members having experience with Edelbrock carb on a 59 model? Gusee ther emust be adaptors in both ends to can use the air cleaner etc?

T.Kibsgaard
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Offline Dave Shepherd

  • Posts: 1377
Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #1 on: July 14, 2012, 01:35:05 PM »
Couild be wrong but I beleive Carter AFB/Edelbrock should bolt to the manifold, fuel lines linkage and choke may need some adapting.  Check the bolt pattern and throttle bore spacing and size, Btw I have never had an issue rebuilding the Rochester 4gc carb.
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Offline kib

  • Posts: 78
  • Name: Thore Kibsgaard
Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #2 on: July 14, 2012, 01:42:40 PM »
Thanks!

To have the idle adjustet I need 4 turns on both sides to have the engine run near to normal during driving.
I understand it should be only 2 1/4 turn?

Thore
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Offline Jeff Wilk

  • J. Wilk CLC # 25630
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Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #3 on: July 14, 2012, 01:44:12 PM »
Same here.  This carb is one of the most reliable.  Custom Rebuilt Carbs is an expert shop on these and can mY e offer some advice.   Customrebuiltcarbs.com

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Offline Roy Schroeder

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Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #4 on: July 14, 2012, 01:47:58 PM »
Those two screws in the front are air / fuel mixture screws. Not the idle screw. The idle screw is on the driver side. The throttle tab stops up againist it.
 The two in front are to be backed out until you get your highest rpm's,from about 2 turns out to start with. Then adjust the one on the side.
I can see why your having problems.
 Roy
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ROY SCHROEDER 
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Offline kib

  • Posts: 78
  • Name: Thore Kibsgaard
Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #5 on: July 14, 2012, 01:56:31 PM »
Roy, when I have aprox 4 turns I got the highest rpm and the turn them back in?

Brg
Thore
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Offline Roy Schroeder

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Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #6 on: July 14, 2012, 04:03:39 PM »
IF the rpm's stopped going up at 4 turns ,then you leave them alone. You may have to check each side ,going back and forth a couple of times, by going in on the screw, and then out to get the highest rpm. Then adjust the engine speed on the side of the carb for idle. Don't touch the front ones again, unless you want to try to fine tune the air/fuel mix once more. Then set idle speed screw on the side again.
« Last Edit: July 14, 2012, 04:05:26 PM by Roy Schroeder »
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ROY SCHROEDER 
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Offline kib

  • Posts: 78
  • Name: Thore Kibsgaard
Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #7 on: July 14, 2012, 04:25:21 PM »
thanks for thie information

Brg Thore
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Offline Roy Schroeder

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Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #8 on: July 14, 2012, 05:05:01 PM »
If that quadrajet is adjusted in right it should run very nice. They give you very little problems.
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ROY SCHROEDER 
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Offline Dave Shepherd

  • Posts: 1377
Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #9 on: July 14, 2012, 05:49:35 PM »
Guys, remember this is not a Quadrajet, also a vacuum  gage is the best way to finalize a good idle setting, sorry if I am a PITA. 
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Offline Roy Schroeder

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Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #10 on: July 14, 2012, 07:33:16 PM »
He stated it was a Rochester carb in his first sentence. To me that means Quadrajet. Right ?
I didnt want to get to technical with him. Yes the vacuum is one of the best ways. I use tach,and vacuum.
 Wanted to see if he got it any better with what was told to him.
Dave, your not a PITA......................ha
 Roy


http://www.carbkitsource.com/carbs/tech/Rochester/Quadrajet-index.html
« Last Edit: July 14, 2012, 07:35:34 PM by Roy Schroeder »
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ROY SCHROEDER 
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Offline Bob Hoffmann CLC#96

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Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #11 on: July 14, 2012, 07:47:02 PM »
Dave is correct. A 59 carb is a regular Rochester  4 barrell. The quadrajet came out in 1967 on Cadillacs & had  much larger secondaries.
 HTH, Bob
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Offline Roy Schroeder

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Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #12 on: July 14, 2012, 07:49:39 PM »
But they are adjusted the same. Correct ?
As far as the air fuel mixture. All that I ever worked on, are the same as far as setting the air/fuel mixture , for idle.
 Roy
« Last Edit: July 14, 2012, 07:57:30 PM by Roy Schroeder »
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ROY SCHROEDER 
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It's only original once.

Offline Philippe M. Ruel

  • Posts: 364
Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #13 on: July 15, 2012, 02:20:51 AM »
The 4-turn base setting holds for Quadrajets.

Earlier "4-jet" (4GC) Rochesters require only about 1-1/2 to 2 turns.
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Offline kib

  • Posts: 78
  • Name: Thore Kibsgaard
Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #14 on: July 15, 2012, 02:23:48 AM »
Hi my, the carburetor is the original 1959 Rochester 4 GC as on the pictures in the manual section 10-35.
This one was re built in 2007 and still not work as I want it to. If I use only 1-1/2 to 2 turns the car just stop. But if I use 3-4 turns it will work in a way.

Brg
Thore
« Last Edit: July 15, 2012, 02:27:22 AM by kib »
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Offline Roy Schroeder

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Re: Edelbrock 1406 on a 59 Cadillac?
« Reply #15 on: July 15, 2012, 05:39:16 AM »
It is possible you have other issues. Timing, vacuum leaks and the like.
 Roy
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ROY SCHROEDER 
WISCONSIN
1978 Cadillac Coupe DeVille
It's only original once.
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