Carb newbie.... which weber do I have?? (1 Viewer)

piecemeal

SILVER Star
Joined
Nov 18, 2008
Messages
1,100
Location
Hellertown, PA
There is a stamped piece of tin attached to the carb that says the following: 1st line - Weber. 2nd line - 79 2C AA. 3rd line - A 083 9 It's on a 74 FJ40 and it looks like it has two barrels. Any idea which one it is ( I'd like to get a rebuild kit as I think it needs it)? :cheers:
 
Joined
Mar 10, 2010
Messages
357
Location
Butte, MT
I have a 32/36 and you can see a considerable difference in the size of the barrels. So if your barrels look the same that rules out a progressive carb. Which leaves the 34/34 and 38/38, thats all of the 2 barrel syncro webers i know of for a fj40. That doesnt mean that there arent others, im not an expert, just tryin to help.
 

JohnnyC

Long ago TLCA# 2231
Joined
Jun 17, 2005
Messages
17,027
Location
UpState Ny, Wells Me
this is a 32/36 weber note the progressive barrels
resize

this is a 38/38 weber
Weber3838.jpg


this is a 34/34 weber (solex) carb
K05534c.jpg
 

piecemeal

SILVER Star
Joined
Nov 18, 2008
Messages
1,100
Location
Hellertown, PA
looks like a 38/38

142.jpg


152.jpg


154.jpg


looks like a 38/38??

I found a guy to rebuild it. Where can I get and what is the most comprehensive rebuild kit available that will have EVERYTHING he'll need to rebuild and tune it????:cheers::cheers:
 
Last edited:
Joined
Mar 10, 2010
Messages
357
Location
Butte, MT
For mileage its not the best, but for power it will dump more fuel in the engine than any of the other webers.
 

piecemeal

SILVER Star
Joined
Nov 18, 2008
Messages
1,100
Location
Hellertown, PA
tackle trying to tune this myself.... Also, is there an inlet screen for the fuel on the carb?? (I'm wondering if there could be a clog, not sure)
 

piecemeal

SILVER Star
Joined
Nov 18, 2008
Messages
1,100
Location
Hellertown, PA
back at it after hiatus.... was checking carb filter and dropped it, gone, can't find it anywhere, gotta get a new one. might as well order new jets and a needle valve while I'm at it (finally found a carb guru who will tune it). what size jets would you recommend or how can I tell what is currently on it w/o dissassembling the whole thing (1974 1.5F with a 38/38 DGES)?? It ran pretty good before the gas tank cancer problems started with the exception of hesitation in third gear on the bottom end (flat spot??). However the timing was advanced pretty far (i.e., couldn't see bead in timing window in order to run). I dunno. Thanks for the help, I am clueless when it comes to carbs....
 
Last edited:

JohnnyC

Long ago TLCA# 2231
Joined
Jun 17, 2005
Messages
17,027
Location
UpState Ny, Wells Me
you need to open it to see what it has...it probably has the 155 mains and 180 air...but...you will really need to know in order to know were to start.

what alt do you live at?
 

Users who are viewing this thread

Top Bottom