Check out this cool DIY Smoke Tester Tool
When your Volvo has vacuum leaks, often your time gets decimated looking for a cracked hose or broken vacuum hose elbow, and it can even affect your wallet if you take your Volvo to a shop.
Long ago someone, somewhere, discovered that vacuum leaks can found more quickly by using smoke. Smoke will be pulled into a crack on a vacuum line. Just run the engine, create smoke, and watch for it getting pulled into the affected area. Whoa, things just got easier. (Read about other ways to find vacuum leaks.)
As you might expect, smoke machines — while prevalent in the 1980s big-hair rock ‘n roll world — are not exactly widespread or cheap. So MVS Forums user aquamann71 does what we do around MVS… he made his own:
I made my smoke tester out of a plastic bucket that has a rubber o-ring inside the cover. I got it from the grocery store. It had pickled meat in it but any bucket with a gasket in the lid will work. I drilled two 2 inch holes in the lid. I used 4 quick connects that are used on pneumatic tools, 2 male thread and 2 female thread. Applied a bit of Teflon tape to the male ends first and screwed them down tight.
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