How To: Build a DIY automotive cylinder leak down tester to test engine seals

How to Build a DIY automotive cylinder leak down tester to test engine seals

The seals in your car had best all be functioning properly if you expect your car to work right. To test the ones in your engine cylinders you'll need an automotive cylinder lead down tester, and if you don't want to buy one, you're in luck because this video contains easy-to-follow instructions on how to make one in your garage.