OPUS CORVAIR - 140 Carburetor Photos

OPUS CORVAIR - Used Corvair Parts and Supplies.

140 Corvair Carburetors

The photos below are of two groups of 140 Corvair carburetors I recently recieved. Not knowing a lot about the 140 difference types and not finding the answers in the repair manuals, I post these photos here for your comments.

As the replies come in, I will post these at the bottom of this page. Send your comments or questions to opuscorvair@comcast.net
You can also reach me at rbuckridge@comcast.net, but to keep the emails simple, please use the OPUS address.
You can also call me at 732-269-2475

If the below "hover on" photos don't work for you or are too bothersome, scroll down for a simple list of he photos.

Hover on a thumbnail the larger view is displayed to the left.
Set A



Set B

Set A Group of 140's
	Over all view of the first set of carbs I call "Set A".
	Idle mixture screws on both primary & secondary carbs.
	Poor view of idle mixture screws.
	No choke valve on the secondary carb, but it does have the choke valve rod. The rod in solid, no slot & no screw holes.
	The other pair of carbs. Same as above, no choke plates, same rod.
	Better view of mixture screws on both primary & secondary carbs.

Set B Group of 140's
	Over all view of the second set of carbs I call "Set B".
	Idle mixture screws only on the primarys & not on the secondary carbs.
	Same as above.
	No choke valve on the secondary carb & no choke valve rod. Sides are solid, no hole for choke valve rod.
	Same as above
	Better view of mixture screws on primary & not on secondary carb.

Comments ()

Some simple basics - No secondary carbs on 140s ever had mixture screws, but it was and is a common change to substitute primary bottoms for secondaries. Note that secondaries also had no vacuum port tubes vertical or horizontal. So Set A is a combination of piece parts. The "springed" linkage is "66 style" but actually was incorporated in mid-65. The spring linkage utilized the lock shafts on the secondary tops. (The shaft with no plate on the A secondaries.
The bolt-on tabs may be a good indicator or not. They move with the screws. Set B is more indicative of the 65 (early-65) style carbs. No linkage in the secondary top, no choke lockout needed and set-up for solid (no-spring) linkage. The condition of the lower float bowls, the insides and the throttle plate/shaft area will determine the best course of action.
- Seth Emerson (posted 06/19/09)
I can see a normal setup, two primaries and two secondaries, the primaries have chokes, and the secondaries do not, the secondaries do not have idle speed or mixture adjustments............anything else??????
- O. B. Stewart - Music City Corvair Club (posted 06/19/09)

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