I figured since my spare motor is sitting on a stand I'd do a leak down test just to be sure it's 100% healthy and it's so easy to do, why not. I don't want to buy the tester for one use so I called 2 auto parts stores to see if I could rent one. The guy at O'Reilly's auto parts say's "what's a leak down tester". Obviously they don't have one so I call Advance auto parts. I get the same response from their guy but he'll go check. He comes back on the phone and say's "we have a gas combustion" tester.
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What is it again that these guy's do for a living?