How to compression test your engine DIY

Compression testing tool: amzn.to/2MlNUkg

Time for the first ever compression test of my freshly rebuilt engine! Fingers crossed.

Doing a compression test is really easy and its something that every car guy should be to do himself. You can buy a compression tester for cheap and be able to do a compression test whenever and wherever you want.

How to do a compression test?
The first thing you need to do is warm up your engine to operating temperature. After that shut off your engine and remove your spark plugs. The disconnect your ignition coil and disconnect all of your injectors.

After that you are ready to screw in your compression tester into your spark plug hole and crank the engine. We crank the engine 4-5 times until the compression on the gauge builds up. Don't forget to hold the throttle wide open while cranking the engine.

Fortunately my engine turned out to be ok. Which means my rebuild was not a failure and I can keep bragging how I rebuilt and engine by myself.

When doing a compression test what you are looking for is staying withing the factory specified specs, but also whats even more important is consistency between each individual cylinder. If one cylinder gives a reading that is significantly different than the others, than you are most likely looking at expensive repairs due to failed piston rings, or sticking valves.

In the videos to come I will be inspecting my engine for rod-knock and testing my engine's oil pressure.

Check out my blog for more: driving4answers.com/

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