Quote:
Originally Posted by zuburg
What is the recommended connection point for the vacuum gauge to check the mixture screws? I'm guessing I could disconnect the line going to the power brake? If so, do I need a fitting to connect the vacuum gauge?
Or can I just put the plastic tapered end that comes with the gauge kit in the opening?
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Disconnect the rubber line to the brake booster (in yellow circle) and temporarily slide a short snug fitting rubber hose over that metal tube leading to the back of the carb. Then insert the tapered fitting for the vacuum gauge in the other end of that short temporary tube. (if the brake booster is leaking this disconnects it, but you can check it separately)
Or...
You could connect the vacuum gauge to the front end of line #3 where it slips onto the top of the fuel pump. But this won't let you know if the fuel pump booster diaphragm for the windshield wipers, or the wiper motor itself, is leaking.