I found what looks like a rebuilt 4.7 HO V8 engine at PicaPart from a 04 Jeep Grand Cherokee Limited. After removing the camshafts I noticed that the cam gears and timing chains were like new and after looking at the engine block I realized that the engine looks to be rebuilt recently. To find out the condition of this engine I'll show you how to perform a cylinder leak down test. I also do a comparison of the Harbor Freight US General 94190 to the OTC Cylinder Leakage Tester Kit.

OTC's Cylinder Leakage Tester Kit quickly diagnoses internal engine problems like bad rings, valves, and leaking head gaskets and comes complete with adapters for most applications
Dual 21/2 inch gauges read 0100 psi.
Kit features a pressureregulated manifold with quick couplers, 24 inches long 14mm flex hose, and 10 mm, 12 mm, and 18 mm thread adapters. https://amzn.to/3EjCkxI'>https://amzn.to/3EjCkxI

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OTC 5609 Cylinder Leakage Tester Kit https://amzn.to/3EjCkxI'>https://amzn.to/3EjCkxI
Other Leak Down Testers https://amzn.to/3Ef9U89
CTA Tools Spark Plug Socket, 5/8" x 12Pt x 6" https://amzn.to/3qgtFXQ
CRAFTSMAN Flex Head Ratchet, Long Handle, SAE, 3/8Inch https://amzn.to/3mlNXOs

Recording Equipment
GoPro Hero 8 https://amzn.to/2CCtnpq
Universal Flexible Tripod with Ball Head Bundle https://amzn.to/3gh4fm9
Aluminum Alloy Case for GoPro Hero 8 https://amzn.to/2Q5m5O4
GoPro Pro 3.5mm Mic Adapter for Hero 5 thru 8 https://amzn.to/2YdhpdH
Rode VideoMicro Compact with Rycote Lyre Shock Mount https://amzn.to/3hb0y2j

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FYI if you click any of the product links above and end up purchasing anything I MAY get paid a small commission at no extra charge to you. This is one of the ways you can support the channel. Your support helps me bring out more content for all of you. Martinbuilt assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from the information contained in this video is the sole responsibility of the user and not Martinbuilt. Martinbuilt can not guarantee against improper use or unauthorized modifications of this information.