Capping off an unsused vacumn hose

[47heaven]

What can I use to plug up the outlet on the carburator where the vacumn hose to the former wiper motor is? It's hanging loose in my car and I have electrical tape on and around the hole at the end of the tube, but it's still sucking air a bit, thus causing rough idling. Are there any caps or what else would work?

[anthonyb]

If it is a metal line screwed into the carb, take it out and go to your local parts house. Most of them have brass fittings and plugs available that should match the threads.

If you do plug it off that way, remember the anti-sieze on the threads.

[Don Coatney]

If your wiper connection was connected to the base of the carburetor it was not connected correctly. The vacuum port at the base of the carburetor just below the throttle butterfly is where the vacuum advance tube connects. The vacuum wiper tube connection is located on the intake manifold. In this picture the vacuum advance line is connected to the base of the front carburetor and the corresponding hole in the back carburetor is plugged.

This David Maxwell photo shows the wiper vacuum port in the intake manifold below where the carburetor mounts. You might want to install a valve in this port as this is where a vacuum gauge should be connected for tune up and diagnostic work should you ever do such work.

[greg g]

The vacuum line from the base of the carb is for the vacuum advance on the distributor. If it is disconected, you should hook it up. If you have a part of the metal vacuum line stil there, and want to plug it, find a piece of rubber or plastic tubing that fits over it, cut a piece about an inch and a half long, as screw in a sheet metal or wood screw into the open end.

[47heaven]

Thanks guys. All this info will be quite helpful.

Darin

[Guest jtw3749c]

Something I keep around my shop are golf tee's. They have the tapered part at the top and fit most small lines for plugging.

JT