Carter BBD no stepper - JeepForum.com
 
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post #1 of 6 Old 03-17-2014, 09:29 AM Thread Starter
unrulycj
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Carter BBD no stepper

I have an '83 CJ-5 258 with Carter BBD that has the stepper. The PO did the nutter bypass and I added a Mallory dizzy. I'm pretty sure the FOMOCO box is no longer connected to anything, except providing me one hot wire to my Mallory. The stepper is not connected at all...connector cut by PO. Can I get this stepper carb to not be soooo rich? Or, can I buy a non-stepper Carter-type and adjust the mixture manually?

thanks.

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post #2 of 6 Old 03-17-2014, 08:29 PM
cruiser54
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There was a trick to setting them to a neutral position and then unplugging them. You're kinda beyond that. Yes, a non-stepper motor carb can be used. Webers work great bTW.

If you own a Renix Jeep, you'll want to check this out.

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post #3 of 6 Old 03-18-2014, 09:30 AM Thread Starter
unrulycj
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Quote:
Originally Posted by cruiser54 View Post
There was a trick to setting them to a neutral position and then unplugging them. You're kinda beyond that. Yes, a non-stepper motor carb can be used. Webers work great bTW.
Thanks cruiser. I've seen a lot if chatter about Weber's being hard to maintain. I have an MG with dual SUs. They are always complained about...I rebuilt mine with the master kit, set them up with my desired needle and jet combo and balanced them. That was 2005 and I haven't touched them since.

Now, that was all said to ask, which of the complaints are valid and which can be chocked up to lacking skill or laziness?
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post #4 of 6 Old 03-18-2014, 04:34 PM
carnuck
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The other option is to take the stepper off the carb and adjust it. Once it's unplugged, it's pretty much taken out of the loop. If someone near you has one with the same BBD compucarb, you can unplug their stepper and plug it into yours, then turn the key just to on, ground the stepper body (it will spin to center itself. Don't be scared when it moves)
Usually that is not the problem with over-fueling. The line coming in is bent in such a way that the weight of the fuel filter actually unscrews the seat, which raises the float level.

Photo borrowed from a Mopar site shows the seat leaking. The body through screws come loose too and adversely affect fuel economy and running. Metering rods in the top front can be adjusted lower for better economy (if out of adjustment)

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post #5 of 6 Old 03-18-2014, 09:20 PM
cruiser54
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Quote:
Originally Posted by unrulycj View Post
Thanks cruiser. I've seen a lot if chatter about Weber's being hard to maintain. I have an MG with dual SUs. They are always complained about...I rebuilt mine with the master kit, set them up with my desired needle and jet combo and balanced them. That was 2005 and I haven't touched them since.

Now, that was all said to ask, which of the complaints are valid and which can be chocked up to lacking skill or laziness?
As a multiple carb guy myself, I would not hesitate to do a Weber down draft conversion were I in your shoes. I've done a "synchronous" Weber conversion on a 258 with excellent results. Companies like Redline have kits with pre-jetted carbs so there's no issue there.

If you own a Renix Jeep, you'll want to check this out.

An index to over 30 write-ups can be found in the link below

www.cruiser54.com

My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
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post #6 of 6 Old 03-18-2014, 09:22 PM
cruiser54
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Quote:
Originally Posted by carnuck View Post
The other option is to take the stepper off the carb and adjust it. Once it's unplugged, it's pretty much taken out of the loop. If someone near you has one with the same BBD compucarb, you can unplug their stepper and plug it into yours, then turn the key just to on, ground the stepper body (it will spin to center itself. Don't be scared when it moves)
Usually that is not the problem with over-fueling. The line coming in is bent in such a way that the weight of the fuel filter actually unscrews the seat, which raises the float level.

Photo borrowed from a Mopar site shows the seat leaking. The body through screws come loose too and adversely affect fuel economy and running. Metering rods in the top front can be adjusted lower for better economy (if out of adjustment)
I have to ask.

Where do you come up with this crap? Has little or nothing to do with helping the OP but somehow satisfies your need to spin yarns about stuff that is useless.

If you own a Renix Jeep, you'll want to check this out.

An index to over 30 write-ups can be found in the link below

www.cruiser54.com

My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
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