BBD swap

Stock FSJ Tech Area

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69gladiator
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BBD swap

Post by 69gladiator »

I recently bought a 82 Cherokee with 258. The previous owner replaced the electronic BBD with a Mopar type BBD. It appears that most of the emissions systems have been removed. The Mopar model has a vacuum controlled choke. Living in New England I need a choke! I called my local carb shop and he said that carb can’t be converted to an electric choke.

He recommend replacing the BBD with a Holley or a Motorcraft 2100. I found a seller on EBay who sells a complete kit including the 2100, linkage adapter, and adapter plates at a reasonable price. I’ve researched this kit on several different forums and it seems that this seller has many negative reviews. Has anyone on this forum, used this seller? I like the idea of obtaining a complete kit, eliminating the need to source parts from many different vendors. I’m open to any suggestions on this issue .
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tgreese
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Re: BBD swap

Post by tgreese »

Point to seller?
Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS/PDB, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination A/Ts, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
Dual Everything: '15 Chryco Jeep Cherokee KL Trailhawk, ECO Green
Blockchain the vote.
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Stuka
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Re: BBD swap

Post by Stuka »

How much is he asking for the kit?

Because you can also switch to a Weber, which many of us here run. Or you can put together a kit for a 2100 yourself. I would suggest finding the smaller version of the 2100.
2017 JKU Rubicon
Pevious Jeeps: 1981 J10, 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ

Topic author
69gladiator
Posts: 231
Joined: Tue Oct 15, 2013 6:10 pm
Location: stratford,ct

Re: BBD swap

Post by 69gladiator »

$295.00. It seems like a fair a price. I’m sure if I could see a switch than someone did, I could make the linkage. I just seems like a good idea not to have reinvent the wheel.

offthebeatenpath
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Re: BBD swap

Post by offthebeatenpath »

I was looking at that same sellers kit for my 6-230.
What were the negative reviews about? I still don’t understand how you screw up selling stuff on eBay, I never had an issue in 500 transactions. Well, except for that one time I mixed up my mailing labels and sent two boxes to the wrong addresses....
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tgreese
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Re: BBD swap

Post by tgreese »

tgreese wrote:Point to seller?
Link? Or must we search and guess?
Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS/PDB, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination A/Ts, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
Dual Everything: '15 Chryco Jeep Cherokee KL Trailhawk, ECO Green
Blockchain the vote.

Topic author
69gladiator
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Location: stratford,ct

Re: BBD swap

Post by 69gladiator »

Here’s my problem I can’t copy the link. The problems cited were issues with the quality of the rebuild.

offthebeatenpath
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Re: BBD swap

Post by offthebeatenpath »

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tgreese
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Re: BBD swap

Post by tgreese »

402 positive, 6 negative, 2 neutral. That seems quite positive to me.
https://feedback.ebay.com/ws/eBayISAPI. ... terval=365

Maybe the OP refers to another seller. This guy has been selling these kits for many years, and comments on the forums have been very positive, AFAIK. To the OP, I don't understand why you can't copy the link ... however, you could give the number for the posting, ie 223468125607 for this seller.
Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS/PDB, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination A/Ts, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
Dual Everything: '15 Chryco Jeep Cherokee KL Trailhawk, ECO Green
Blockchain the vote.

Topic author
69gladiator
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Location: stratford,ct

Re: BBD swap

Post by 69gladiator »

Ok. I guess I didn’t make myself clear enough when I made my original post. Again, I was referring to somebody other Jeep forums regarding negative reviews about this kit. In fact there were posts wondering why their negative reviews weren’t posted on Ebay. I was hoping that someone on this forum might have some firsthand experience. I too, was confused when I saw the overwhelming positive reviews on EBay.
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tgreese
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Re: BBD swap

Post by tgreese »

This seller has been selling these kits for many years, and sometimes goes by the name "Gronk Performance." I did my own 2100 conversion for my J10 maybe 15 years ago, and I noticed these kits then. I found a junkyard carb, but there are a lot fewer of these carbs available now. Gronk used to sell rebuilt 2100s and 2150s, but I'm pretty sure he imports new 2150 repops now.

I would point out that the universe of CJ owners that have converted a 258 with a BBD to another carburetor is a lot larger than the corresponding universe for FSJs. CJs and Wranglers got only 258s (or 2.5Ls) after 1983 (?) and I'd say something like 95% of FSJs are V8s. You are probably already hearing from the only two members here with some experience in this area.

What do you hope to learn from members that have used this kit that has not been covered in other forum posts? I searched for Gronk Performance and the first hit was this one - https://www.jeep-cj.com/forums/f2/gronk ... ade-21611/ - hard to see how this could be more positive. If you're unhappy with what you get, eBay offers a lot of protection for buyers. If you use your credit card, you can also contest the charges if ebay won't help you.

If you need a plug-and-play solution, the alternative is the Redline Holley-Weber kit; the moderator Stuka has this carburetor and recommends it. Available lots of places. http://www.redlineweber.com/carb-kits/auto/jeep/ Available in either a 32/36 progressive version or the 38-38 (which may also be progressive - don't know).

if your carb shop was recommending a 2300 type Holley 2V, don't do that. BTDT. These carbs are terrible on the trail without a lot of modification; the aftermarket 2300 is a hot rod carb that will need to be tuned to your application. Plus, even when tuned they are terrible on mileage, in my experience. Great seat-of the-pants boost on the street though.
Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS/PDB, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination A/Ts, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
Dual Everything: '15 Chryco Jeep Cherokee KL Trailhawk, ECO Green
Blockchain the vote.

Topic author
69gladiator
Posts: 231
Joined: Tue Oct 15, 2013 6:10 pm
Location: stratford,ct

Re: BBD swap

Post by 69gladiator »

The Ebay deal seems like a good deal I leaning to trying it since the BBD isn't going to work too well when the weather gets cold.
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Stuka
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Re: BBD swap

Post by Stuka »

69gladiator wrote:The Ebay deal seems like a good deal I leaning to trying it since the BBD isn't going to work too well when the weather gets cold.
BBD's don't ever work well :P
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Pevious Jeeps: 1981 J10, 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ
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tgreese
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Re: BBD swap

Post by tgreese »

The BBD is the carburetor that everybody loves to hate. Probably not as bad as it is played up in the forums, but the alternatives are a lot better.
Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS/PDB, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination A/Ts, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
Dual Everything: '15 Chryco Jeep Cherokee KL Trailhawk, ECO Green
Blockchain the vote.

Topic author
69gladiator
Posts: 231
Joined: Tue Oct 15, 2013 6:10 pm
Location: stratford,ct

Re: BBD swap

Post by 69gladiator »

The local carb guy is a not big fan at all. I’m going to pull the trigger soon on the Ebay deal. I’ve got to put a drop pitman arm on first, since one of the previous owners lifted the truck and left the stock one on the truck. The comptroller is monitoring expenditures closely, Have to fly close to the ground
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Stuka
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Re: BBD swap

Post by Stuka »

tgreese wrote:The BBD is the carburetor that everybody loves to hate. Probably not as bad as it is played up in the forums, but the alternatives are a lot better.
I am sure there are guys that have learned to make theirs work "ok". I tried with mine. It would run well for a few weeks, and then start loading up at idle again because of the poorly designed idle jets.

The 2100/2150 or Weber are both much better options.
2017 JKU Rubicon
Pevious Jeeps: 1981 J10, 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ

Topic author
69gladiator
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Re: BBD swap

Post by 69gladiator »

No updates as I as I am in the process of replacing the steering column. I am anxious to do the replacement but I have to be able to steer! Undoing the sins of numerous previous owners.

Topic author
69gladiator
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Re: BBD swap

Post by 69gladiator »

I just finished up installing the Gronk Motorcraft 2100 carburetor kit on the 258. I hate to curse myself but there’s a % 100 improvement! I want to retime the engine and possibly vacuum tune the carb.

Question: I did find a disconnected vacuum line to the front axle. Any thoughts as to why it was disconnected or just hack work?
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Chubbinius
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Re: BBD swap

Post by Chubbinius »

69gladiator wrote:I just finished up installing the Gronk Motorcraft 2100 carburetor kit on the 258. I hate to curse myself but there’s a % 100 improvement! I want to retime the engine and possibly vacuum tune the carb.

Question: I did find a disconnected vacuum line to the front axle. Any thoughts as to why it was disconnected or just hack work?
Nice! A new carb is always nice! Where does the vacuum line go to on the axle? Is it possible it is just the vent plumbed to stay above/keep water out of the axle?
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Stuka
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Re: BBD swap

Post by Stuka »

It could be a vent line, but is most likely for use with a vacuum disconnect that 82-84 were available with. This was done to try and help with fuel economy, but were troublesome. When you shift into 4wd, are the front tires actually powered?
2017 JKU Rubicon
Pevious Jeeps: 1981 J10, 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ
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