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Labor Day Putting down your wrenches or time for
MORE wrenching? 
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | Well this probably won't help ya but I have a Sargent-Welsh vacuum pump that I got from a guy that did AC servicing. It will take a system down to ten to the minus third atmospheres. I’ve used it to check a few Trico vacuum motors and if they won’t work with that pump, they won’t work.
Vacuum is pretty tricky, you really need a tightly sealed system for it to do it’s job. A vacuum cleaner pumps a lot of volume but not a very high vacuum. What you need is hi-vac and low volume.
Your engine or any engine is most likely the best vacuum pump available to the average Joe.
Denny Graham
Sandwich, IL
Denny G
Sandwich, IL
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