68 Rochester Questions

[Jeff P.]

Here again. In front ,on top there is a small box with a wire that comes out and wraps around the plunger on driver side. Part # 35431. Survivor has it ,convertible doesn't . 2nd, the accelerator cable has a spring attached at bottom on Survivor . The convertible has them attaching to the thermostat housing and the front of the bracket. Learning curves. Thanks, Jeff

[Joe L.]

Re: 68 Rochester Questions

Here again. In front ,on top there is a small box with a wire that comes out and wraps around the plunger on driver side. Part # 35431. Survivor has it ,convertible doesn't . 2nd, the accelerator cable has a spring attached at bottom on Survivor . The convertible has them attaching to the thermostat housing and the front of the bracket. Learning curves. Thanks, Jeff

Jeff------


The carburetor with the float bowl vent cover is the correct configuration for 1968. The other carburetor is a later carburetor, probably a SERVICE carburetor.

The carburetor with the return spring between the throttle lever and the throttle cable bracket is the correct configuration. The other is a modified, "jury-rigged" set-up.

If you check the numbers on these carburetor I think you will find that the first one may be an original carb. The second one will have a number which excludes any possibility of it being original.

[Jeff P.]

Re: 68 Rochester Questions

Thanks again Joe. The Survivor with the float bowl cover does not have a part number on it. It does have the correct plate under it . The carb without the cover has the correct numbers 7028219 DG . With a plate date of 4 th day of 68 (0048)

[Joe L.]

Re: 68 Rochester Questions

Thanks again Joe. The Survivor with the float bowl cover does not have a part number on it. It does have the correct plate under it . The carb without the cover has the correct numbers 7028219 DG . With a plate date of 4 th day of 68 (0048)

Jeff------

I have never seen a Rochester Q-Jet, PRODUCTION or SERVICE that did not have an identifying part number stamped into it. However, it's possible that this carburetor had a float bowl replaced at some point with a SERVICE float bowl. That would have no numbers stamped on it.

Similarly, the carb with the correct numbers stamped on the float bowl probably had the air horn assembly replaced at some point. The air horn is a later style air horn. Curiously, though, the carburetors that used this style air horn also had provisions built into the float bowl for venting. Since your carb has an original style float bowl but a later style air horn, I don't understand how the float bowl is vented. Is there a small rectangular steel plate on the rear of the carburetor float bowl which is attached with 2 screws?