Best way to fix a BBD? - Page 2 - JeepForum.com

View Poll Results: What is the best way to fix/repair a Carter BBD?
Rebuild it. 10 40.00%
Replace it. 10 40.00%
If replaced use, Weber 32/36 DGEV 5 20.00%
If replaced use, Weber 38/38 DGES 2 8.00%
Multiple Choice Poll. Voters: 25. You may not vote on this poll

Reply
 
LinkBack Thread Tools
post #16 of 27 Old 09-08-2011, 08:36 PM
CSP
Registered User
 
Join Date: Aug 2002
Location: Colorado
Posts: 15,609
BBDs might be fine after rebuilding, rebushing, etc. but point any of them up a steep hill and they will flood.

CSP is offline  
Sponsored Links
Advertisement
 
post #17 of 27 Old 09-09-2011, 12:05 AM
BagusJeep
Registered User
1981 CJ7 
 
Join Date: Jul 2009
Location: Bali
Posts: 5,314
Mine doesn't and I live at the top of a very steep hill.

BagusJeep lives in Bali.

1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
1995 Cherokee 4.0 - CHEROKEE
BagusJeep is offline  
post #18 of 27 Old 09-09-2011, 12:36 AM
BagusJeep
Registered User
1981 CJ7 
 
Join Date: Jul 2009
Location: Bali
Posts: 5,314
Quote:
Originally Posted by tdkask View Post
I just hated the idle tube issues and constant aggravation. I understand that they worked for 30 years, but mine always had problems. Since my swap (only 3 months ago) I have driven my CJ every day but 3 and have not had to touch the carb for any reason. Also, I can now pass people on the highway and accelerate to to speed (probably not more than 80... haha) reasonably with stock gears and 33's.
Thise idle tube issues are a pain. I fixed mine 3 years ago, put some new filters in and no trouble since. Bagusjeep has only stopped twice from working in the last 3 years and that was for a dodgy electrical connection to a pump and a broken axle.

The BBD is characterised as being unreliable but I find it a reliable if unexciting piece of kit.

P.S. I pass people at all speeds, but no one drives that quickly here.

BagusJeep lives in Bali.

1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
1995 Cherokee 4.0 - CHEROKEE
BagusJeep is offline  
post #19 of 27 Old 09-09-2011, 09:40 PM
86cj74.2L
Web Wheeler
 
86cj74.2L's Avatar
2004 WJ 
 
Join Date: Jul 2006
Location: Stouchsburg, PA
Posts: 10,061
I have a base plate rebushed sitting on a shelf and a dead bbd in a box. When the throttle shaft guides wear to the point I can't compensate for it I'll put the other base plate on.

When the throttle shaft bushings wear out it messes up the idle and the fuel needle position will no longer match the butterfly position causing a hesitation. I just modify the slot so that the needles move as soon as the butterfly's start moving.

I like the BBD soo much I have done the nutter bypass with a twist. I paralleled the dizzy pickup with a MSD box. All the 'Puter Does is control fuel mixture. Timing control is know longer part it.

As a side note........the 258 has been known to have intake manifold gasket leaks. Which on turn cause some problems similar to a carb needing rebuilt. I wonder how many did carb swaps and still had carb problems when they were done? Or did a carb swap and redone the manifold gaskets at the same time when only gaskets would have fixed their carb problems.
86cj74.2L is offline  
post #20 of 27 Old 09-09-2011, 09:45 PM
RobsCrawlin7
no balls
 
RobsCrawlin7's Avatar
2001 TJ Wrangler 
 
Join Date: Feb 2005
Location: Triangle
Posts: 3,257
i agree, mc2100 or tbi. the howell tbi kit is nice and they have great support. only down side is i found the wiring harness isnt very long at all.

'01 TJ 4.7/NV3550, 2" lift, 35's, locked.
'79 CJ7 stock, 304
'98 XJ sold
'79 CJ7 sold
'82 CJ7 parted
'89 MJ sold

SSG David Mejias, SSG Eric Vick, SGT William Bowling, SGT Robert McDowell
1 April 2007
Rest In Peace Brothers
RobsCrawlin7 is offline  
post #21 of 27 Old 09-10-2011, 12:03 PM
Mike Romain
Registered User
1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant
Posts: 18,089
Quote:
Originally Posted by CSP View Post
BBDs might be fine after rebuilding, rebushing, etc. but point any of them up a steep hill and they will flood.
Then the float isn't set right. We climb sand pit and ravine walls until we are so steep the tires just churn in and none of the BBD's I helped folks tune ever stalled out on us. Check my sig line out for photos.

One trick about the float is you need two wrenches to put the gas line on or you will mess up the float level. One wrench has to hold the brass fitting at the carb or it will compress it's gasket which is the other side of the float setting.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
Mike Romain is offline  
post #22 of 27 Old 09-10-2011, 04:07 PM
jeeperjack
Registered User
1985 CJ7 
 
Join Date: Sep 2011
Location: Havelock
Posts: 1
If your BBD has the electronic "growth" sticking out the back of it go to the salvage yard and get a Dodge 318 truck BBd that does not have one. Have to go back in the 70's to get one before Holley repooped them. Use the Jeep base plate to keep your choke working. Install the upper assy to it. It will then be a much better carb. Play with the timing, advancing till spark knock sets in, back off till it is very faint or gone. Adjust the metering rods down till you get a stumble and move them up just a fine hair till it smooths out. Will run much better and increase mileage by 2-5 mpg. Have fun!
jeeperjack is offline  
post #23 of 27 Old 09-10-2011, 09:14 PM
foggybottombob
Registered User
1984 CJ7 
 
Join Date: May 2008
Location: Monument Colorado
Posts: 5,840
I rebuilt my BBD and had never taken apart a carb before. Like CSP says, the only problem I have is that it floods and stalls when you are in near vertical positions going up hill. Otherwise I have not had any more problems with the BBD and it even idles now 2 years after the rebuild.
foggybottombob is offline  
post #24 of 27 Old 09-10-2011, 09:28 PM
afgd1
Registered User
1984 CJ7 
 
Join Date: Apr 2009
Location: durango co
Posts: 200
have 2 of them one new got it from oreillys 216.00 have other one had it rebuilt put it in box coverd with plastic, sealed ytou can get really good at changing them out quick have friend that had weber took it off didnt like it he put ford carb on cj he likes it almost gets beter gas mileage then me
afgd1 is offline  
post #25 of 27 Old 09-10-2011, 09:35 PM
tdkask
Registered User
 
Join Date: Feb 2010
Location: St. Marys / Kingsland / Kings Bay GA
Posts: 574
I too got really good at swapping out my BBD or taking it apart, cleaning the idle tubes, reassembling, and reinstalling. I have not gotten any practice doing any of that with my MC2100 (from '73 CJ5 w/304), as it has never faltered.

Increased dependability, increased power, better mileage (depending on driving habits) originally on a Jeep anyway.

80 CJ7_360_32RH_D300_44/9"(4.56)_custom bumpers/cage
4" lift,tube fenders,comp cut_37s on H1 rims
tdkask is offline  
post #26 of 27 Old 09-10-2011, 11:18 PM
pcg7384
Registered User
1981 CJ7 
 
Join Date: Nov 2008
Location: Oregon
Posts: 151
Swapped mine out with a MC2100. $40 at a U-pull it yard, $25 rebuild kit, $10 new jets, $10 spacer, $10 air filter housing. Much better power, smoother idle, and added 5 MPGs to my gas mileage.

Sold the Carter BBD on E-bay for $50...Sucker.
pcg7384 is offline  
post #27 of 27 Old 09-12-2011, 07:27 AM
CSP
Registered User
 
Join Date: Aug 2002
Location: Colorado
Posts: 15,609
Quote:
Originally Posted by BagusJeep View Post
Mine doesn't and I live at the top of a very steep hill.
We have a different interpretation of what the definition of steep is. Building materials don't make it up what I'd call steep.

Quote:
Originally Posted by Mike Romain View Post
We climb sand pit and ravine walls until we are so steep the tires just churn in and none of the BBD's I helped folks tune ever stalled out on us.
Again, same thing.
CSP is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome