Re: '78 Chevy K-10 blues (Roch. Carb)

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Posted by Bob M on December 21, 2004 at 05:52:17 from (151.190.254.107):

In Reply to: '78 Chevy K-10 blues (Roch. Carb) posted by Bob_S on December 20, 2004 at 23:51:15:

Sounds like you've got an improperly adjusted or a failed vacuum break on the choke.

On startup the vacuum break (or "pull off") supposed to partially open the closed choke the moment the engine fires and prevent flooding. (Punch below for a description from the manual...)

The vacuum break is kinda fussy to set. Requires an external vacuum source, a gage (drill rod) of the correct diameter, then bending the linkage to make the adjustment.

Also if the pull off linkage is binding, or the vacuum break unit is stiff or has a pinhole in the diaphragm it'll cause the carburetor to flood.

Good luck - stuff like this can be tricky to get right!

choke vacuum break

Follow Ups:

Re: Re: '78 Chevy K-10 blues (Roch. Carb) Bob S. 12:58:54 12/21/04 (7)
- Re: Re: Re: '78 Chevy K-10 blues (Roch. Carb) Bob M 16:15:51 12/21/04 (6)
  - Re: Re: Re: Re: '78 Chevy K-10 blues (Roch. Carb) Bob S. 17:44:50 12/21/04 (5)
    - Re: Re: Re: Re: Re: '78 Chevy K-10 blues (Roch. Ca Bob 20:44:55 12/21/04 (3)
      - Re: Re: Re: Re: Re: Re: '78 Chevy K-10 blues (Roch Bob S. 23:31:03 12/21/04 (2)
        
        Re: Re: Re: Re: Re: Re: Re: '78 Chevy K-10 blues ( Bob 08:35:04 12/22/04 (1)
        
        Re: Re: Re: Re: Re: Re: Re: Re: '78 Chevy K-10 blu Loren 19:39:17 01/04/05 (0)
    - Re: Re: Re: Re: Re: '78 Chevy K-10 blues (Roch. Ca Joelski 18:11:25 12/21/04 (0)
Re: Re: '78 Chevy K-10 blues (Roch. Carb) Bob 12:35:48 12/21/04 (11)
- Re: Re: Re: '78 Chevy K-10 blues (Roch. Carb) Bob S. 17:29:23 12/21/04 (10)
  - Re: Re: Re: Re: '78 Chevy K-10 blues (Roch. Carb) Loren 18:11:47 12/24/04 (8)
    - Re: Re: Re: Re: Re: '78 Chevy K-10 blues (Roch. Ca Bob S 18:48:35 12/24/04 (7)
      - Re: Re: Re: Re: Re: Re: '78 Chevy K-10 blues (Roch Iron_Felix 03:43:22 10/01/05 (0)
      - Re: Re: Re: Re: Re: Re: '78 Chevy K-10 blues (Roch Loren 10:42:27 12/25/04 (5)
        
        Re: Re: Re: Re: Re: Re: Re: '78 Chevy K-10 blues ( Bob S 21:27:20 12/25/04 (4)
        
        Re: Re: Re: Re: Re: Re: Re: Re: '78 Chevy K-10 blu Loren 19:23:39 12/27/04 (3)
        
        Re: Re: Re: Re: Re: Re: Re: Re: Re: '78 Chevy K-10 Bob S 21:13:03 01/03/05 (2)
        
        Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: '78 Chevy Loren 19:48:51 01/04/05 (0)
        
        Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: '78 Chevy Loren 19:46:39 01/04/05 (0)
  - Re: Re: Re: Re: '78 Chevy K-10 blues (Roch. Carb) tortmort 20:06:00 12/23/04 (0)

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