El Camino Central Forum banner
1 - 7 of 7 Posts

· Registered
1966, el camino, 454, 6spd Richmond, 12 bolt
Joined
·
44 Posts
Discussion Starter · #1 ·
I have little knowledge when it comes to carbs. But my secondary lock out seems to be loosely hanging there. The plate that touches the pin to lock the secondaries when cold is not connected to anything. Hope yall can see it in the pics. I can jiggle it around and it hangs in lockout position. 4th pic I'm pushing it over with a screwdriver. Only gravity keeps it locked at all times. Am I missing something here?
Motor vehicle Gas Auto part Automotive tire Nut

Wood Automotive tire Gas Bumper Screw

Automotive tire Wood Bumper Gas Font

Wood Gas Auto part Motor vehicle Machine
 

· Registered
Joined
·
691 Posts
Looks like one of the rods is not in the vacuum pull off - (picture of the side of the carb with the vacuum pull off and the rest of the carb would be helpful). When the choke is on, the secondary's should be locked and when the choke comes off it should unlock.
 

· Registered
87 Caballero Amarillo, original 305/200-4R, QJ
Joined
·
1,924 Posts
It's held by the pin it rotates on, but stopped by the choke cams. With the choke active, the cams prevent the lockout from moving backward, so the lockout doesn't budge and the pin keeps the shaft from turning, so no secondaries.

Once the choke is open and you are off the fast idle cam and the choke cam has dropped, the lockout is pushed back and the secondaries are free to open.
 

· Registered
87 Caballero Amarillo, original 305/200-4R, QJ
Joined
·
1,924 Posts
The only time that's active is start to choke open, after that the lockout serves no purpose. It's only there to prevent you from opening up the secondary throttle plates and dumping a ton of gas when there's not enough engine temp to support it. You'll get plenty through the primaries as is, even at WOT for those first few mins.

In colder climates on a half frozen motor, with a very closed choke, and an already rich condition carb, opening up the secondaries can cause the engine to get flooded out, not enough air. Get anything from a hard bog to motor stall. It's not so bad down South or in the summertime, where chokes don't last but a couple minutes anyway.
 
1 - 7 of 7 Posts
Top