Thank you both for the information.

Terry

When installing new delco points in delco distributor 1110811, which side of the of the connection block does the points attach. Outside (1) or inside (2) of the fiber block?


Thank you.

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Thanks for the information.

I will disassemble the carburetor and repair the choke plunger.

Thanks everyone for quick replies.

Thanks.

The stumble is only at idle, the car drives and excelerates fine. It appears that the choke vacuum plunger must not be seating correctly as I have much more than a minuscule leak at warm idle. I can block the end of the choke stove and the idle stumble completely goes away.

I expected a litle vacuum leak at cold idle to pull the heat through the choke stove, but I didn't think there should be any vacuum loss at warm idle, but since I am a novice Packard mechanic, I was not sure. Thanks again.

Thanks for the quick reply.

The tube is attached to the exhaust manifold so that there is no exhaust leak into the stove tube, but the stove tube is open at the end under the exhaust manifold. Thus, the vacuum acting on the choke vacuum plunger is also pulling vacuum past the plunger and through the choke stove tube. This causes a vacuum leak stumble once the engine is hot.

Should there be vacuum through the choke stove once the engine is warm? Is the choke plunger supposed to seal in the down position when hot?

How much of a vacuum leak should there be coming from the choke stove vent below the exhaust manifold.

Is there a difference depending upon engine temperature? Does the choke vacuum plunger seal and block the vacuum leak once the engine is warmed to operating temperature and the choke is open?

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