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Discussion Starter · #1 ·
Hi, I had a slow leak in the headlights and found the fitting that is inline on the vacuum lines to the front end of the car to be the culprit. Pics attached. My original was in bad shape. I simply replaced it with two couplings. Can someone explain what it's there for and if it needs to be replaced long term? Lights are operating fine.

The second fitting I would like some expertise on is the what I'll call the round Y fitting on the vacuum line from the carb/intake. Pics attached. One line enters from the engine and two lines out. I believe it's what others call the check valve as air only flows from the single side to the double side. Question is can it fail or should it be replaced proactively. I would like to confirm it's working properly with air only able to flow in the one direction.

Thank you for the help.


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