[AMC-list] Carter BBD (was Re: AMC-list Digest, Vol 8, Issue 22)

[Jim Blair <carnuck@xxxxxxxxxxx>]

I have rebuilt many of the BBDs and only ran into 1 I couldn't fix. First, make sure the through body screws are tight (if you can twist the carb by hand, they aren't) Then I cross #1 and #6 plug wires at the dist with the air cleaner lid off and backfire it several times. That usually clears out the idle tubes.
   I add a filter before the fuel pump that is designed for EFI and a regular one by the carb after that with the third line upwards (that filter also controls fuel pressure on post '77 fuel pumps)
   I currently have 1 BBD from a 75 Pacer I bought to rebuild (till I found the linkage was wrong to fit my Jeep) and several Jeep ones (which I think are the same as my Spirit, but without the computer plug)
   Keeping the crud out of the BBD seems to keep them running well. I unplugged the computer on my Spirit and it ran well the last 3 months I had it on the road (I have a sediment bowl that had to be dumped once a week due to the rusty tank that I changed a month before pulling it from the road to work on it and I had a see through plastic filter after that which got replaced once a week)
   I have a 2100 Motorcraft to build and put on along with the adapter, but I'm switching over to EFI as soon as I can. I already have the 2wd AW4 ready to go in.

Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10

From: Marc Montoni <Freedom@xxxxxxxx>
To: amc-list@xxxxxxxxxxxx
Cc: Richard Estermyer <javelinman74@xxxxxxxxxxx>
Subject: Re: [AMC-list] AMC-list Digest, Vol 8, Issue 22
Message-ID: <5.1.0.14.1.20091110233836.03c61ec0@xxxxxxxxxxxxx>
Content-Type: text/plain; charset="us-ascii"
 
 
Richard Estermyer <javelinman74@xxxxxxxxxxx> wrote:
 
 
>Also trying to find out what other brand carburator, than the Carter on my Concords could be used?  Both have trouble idling and running and I am not sure IF it is worth rebuilding a Carter or to move on to another.  Does anyone know the cfm for the 6cyl?
 
 
I just rebuilt the BBD that was on my 79 Spirit liftback a couple of months ago.  I could have just pulled the needle and seat to clean them (needle kept sticking due to old gas) but figured it deserved a good cleaning and overhaul.  I was glad I did it!  The insides were filthy.  Once cleaned up and reassembled, you couldn't tell it from a new one.
 
Rebuilding is not that hard, and it is *by far* the cheapest way to get a good carb on your engine.  The rebuild kit was twenty bucks.  The only other thing required is one of those one-gallon cans of carb/parts cleaner.  That stuff will take the hair off your...  uhhh... never mind!
 
I have only rebuilt one other carb (a 2-bbl Solex on a VW Dasher, back in 1983 or so) and the BBD was easier to work with than the Solex.  
 
Anyway, the kit came with absolutely everything and the instructions were clear (although I didn't read them until after I was done).
 
-- Marc
 
P.S.  Side note: I much prefer the two-stage (one barrel normally supplies engine; secondary opens only when needed, as in a typical 4bbl) Solex over the single-stage Carter (both barrels supply engine at all times).  I would think a two-stage would provide better gas mileage as long as you can keep your foot out of it.  Does anyone know of a two-stage 2-bbl carb that would be a bolt-on on a 2bbl AMC six cylinder manifold?
 		 	   		  
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