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Author Topic: Carter BBD settings  (Read 2129 times)

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Offline donnyeagle

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Carter BBD settings
« on: December 16, 2012, 09:25:11 PM »
Does anyone have pictures of a Carter BBD with the accelerator pump and enrichment needles set correctly? Seems like these two things are critical to getting this engine to run right and be fuel efficient.

Offline carnuck

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Re: Carter BBD settings
« Reply #1 on: December 17, 2012, 01:53:43 PM »
It actually depends on a few things. Altitude and engine condition. I set mine by popping the top on the front plate (3 screws on some and just 1 on others. Motor not running) and with the choke off (I push it open with my finger and hit the throttle for the high idle to kick off) then loosen the screw holding the metering rods. They will drop to the leanest point and I push on the tab till they rise up about 1/4" and test run it at that point.
FOR SALE
'87 Comanche 4.0L AW4/NP242 3.73 gears, lifted 5" on near new 33" tires $3500 obo
'82 Eagle Wagon (Brown Betty) 4.2L/727/NP229 and soon 8.25 rear axle and non-vacuum 3.08 front to match. 235/75/15 tires. It's down to minor body work (someone creamed my driver's door but I have another in good shape) almost rust free and interior work (seats are worn and carpet torn). $2000 but about to go up due to more work being done.

Pics of my other for sale stuff http://tinyurl.com/jimsclads

Offline donnyeagle

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Re: Carter BBD settings
« Reply #2 on: December 20, 2012, 07:03:26 PM »
Something else I just discovered today. Manually adjusting the stepper motor all the way in (rich) has helped allot with throttle response and power. I tried running with the stepper motor all the way out (lean) to improve fuel economy but it never did. It did make the car surge at 1/2>full throttle. I also set it half way in with no improvement in economy, power or smoothness. So far stepper motor full in (rich) is the best. Next I will try adjusting the enrichment needle position to see how it effects everything.
Incidentally for those who don't know how (like me initially) you simply remove the stepper motor and turn the center shaft counter clockwise with to move the needles to the full in (rich) position.

Offline carnuck

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Re: Carter BBD settings
« Reply #3 on: January 13, 2013, 04:06:43 PM »
Set it midway by turning on the key (before removing the computer and harness), then unplugging it before starting. Economy isn't affected that way.
FOR SALE
'87 Comanche 4.0L AW4/NP242 3.73 gears, lifted 5" on near new 33" tires $3500 obo
'82 Eagle Wagon (Brown Betty) 4.2L/727/NP229 and soon 8.25 rear axle and non-vacuum 3.08 front to match. 235/75/15 tires. It's down to minor body work (someone creamed my driver's door but I have another in good shape) almost rust free and interior work (seats are worn and carpet torn). $2000 but about to go up due to more work being done.

Pics of my other for sale stuff http://tinyurl.com/jimsclads

Offline donnyeagle

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Re: Carter BBD settings
« Reply #4 on: January 14, 2013, 08:25:15 PM »
For some reason the stepper motor no longer initializes when plugged in and the ignition key turned on. Is that because I did the bypass?

Offline carnuck

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Re: Carter BBD settings
« Reply #5 on: January 14, 2013, 08:48:42 PM »
yes
FOR SALE
'87 Comanche 4.0L AW4/NP242 3.73 gears, lifted 5" on near new 33" tires $3500 obo
'82 Eagle Wagon (Brown Betty) 4.2L/727/NP229 and soon 8.25 rear axle and non-vacuum 3.08 front to match. 235/75/15 tires. It's down to minor body work (someone creamed my driver's door but I have another in good shape) almost rust free and interior work (seats are worn and carpet torn). $2000 but about to go up due to more work being done.

Pics of my other for sale stuff http://tinyurl.com/jimsclads

Offline donnyeagle

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Re: Carter BBD settings
« Reply #6 on: January 14, 2013, 09:11:04 PM »
Thanks. I took allot of things off when I did the bypass. I know that the O2 sensor and the knock sensor have to be hooked up for the computer system to work. What other sensors, switches or vacuum lines do I put back.

Offline eagle87

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Re: Carter BBD settings
« Reply #7 on: January 14, 2013, 09:47:26 PM »
do you have an amc eagle service manual silver colour? (dealer type) the computer system components are shown in there
2010 Ford Explorer (Red)
2004 Jeep Grand Cherokee Special Edition (Blue)
2002 JeepGrand Cherokee Overland Edition (Silver) Rolled
2001 Cadillac Deville (Silver) Blown Engine :(
1999 Jeep Grand Cherokee Ltd (Graphite) Parts Jeep
1998 GMC Safari (Blue)
1990 Mercury Sable (Red)
1987 Eagle Wagon (Beige)
1987 Eagle wagon (Silver)
1987 Eagle Wagon Limited (Brown)
1986 Eagle sedan (Blue)
1983 Eagle SX/4 Sport (Black)
1982 Concord DL (Maroon)
1968 Rebel Conv (Gold)

Offline donnyeagle

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Re: Carter BBD settings
« Reply #8 on: January 14, 2013, 10:00:18 PM »
No I don't have a manual yet.

Offline donnyeagle

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Re: Carter BBD settings
« Reply #9 on: January 14, 2013, 10:11:15 PM »

Offline eagleman

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Re: Carter BBD settings
« Reply #10 on: January 15, 2013, 09:16:26 AM »
Awesome site with a ton of info. egg to ya!
Turkeys walk.Eagles fly!!!

Offline eagle87

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Re: Carter BBD settings
« Reply #11 on: January 17, 2013, 07:10:28 PM »
if you have a snap on sube scanner with the jeep coupler you can see if all the computer components are working
2010 Ford Explorer (Red)
2004 Jeep Grand Cherokee Special Edition (Blue)
2002 JeepGrand Cherokee Overland Edition (Silver) Rolled
2001 Cadillac Deville (Silver) Blown Engine :(
1999 Jeep Grand Cherokee Ltd (Graphite) Parts Jeep
1998 GMC Safari (Blue)
1990 Mercury Sable (Red)
1987 Eagle Wagon (Beige)
1987 Eagle wagon (Silver)
1987 Eagle Wagon Limited (Brown)
1986 Eagle sedan (Blue)
1983 Eagle SX/4 Sport (Black)
1982 Concord DL (Maroon)
1968 Rebel Conv (Gold)

 

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