Engine Oil Extractor

So after I find out how I can turn my air compressor to a vacuum pump, I come up with this Idea. I simply added a reservoir tank between the vacuum pump and the oil and there you go, you've got yourself an oil extractor. So follow the step by step guide down below for more details.

The first thing you will need for this project is a reservoir tank. (I'm assuming you already have a vacuum pump or vacuum tank)

Although I highly recommend everyone to use solid made tanks like glass or metal ones I used a PET water container just because I had it around. As you will see later this wasn't the ideal choice for this application. So I added two connectors to the water container just by drilling the holes and then force threading them in. also added some silicone glue to prevent the leaking. One for the outgoing air and one for the incoming oil. I did swap the container cap for a DIY-made one out of a Sprite bottle.

I used a high-pressure metal wire reinforced hose for the vacuum which is overkill and used a piece of Nylon tube that goes through the dipstick hole. These tubes have enough heat resistance to handle the hot engine oil and as far as I know, this is the same material that is used in the commercial units too.

All you need to do is connect the vacuum pump and the nylon tube to the reservoir tank. Depends on the tubes and connectors you use you might need a few adaptors and extra tubes. As you see in the photos I did one mess of job there because I just whatever piece I had in stock, so be careful when selecting the connectors for the reservoir tank.

Like I said earlier the Ideal reservoir tank is a glass or metal one. Obviously, the benefit of glass over metal is you can easily see through and will have a better understanding of what you doing. Anyway since I used a PET container I couldn't open up the suction valve all the way because the tank can not stand the pressure and will get deformed. (As you see in the pictures I am using a vacuum tank rather than a vacuum pump but that makes no difference for this application)

The test went well but due to the limited suction was required for this plastic reservoir tank, it took a while till the whole water get sucked into the reservoir tank.

In the end, I build a stand with some steel tubes and added a pair of wheels for portability. Then mount the hole system on it and it turns out pretty nice.

So I ran the engine for a couple of minutes to ease up the process, then opened the dipstick cap of my scooter and shoved the nylon tube in. after opening the vacuum tank valve easily the used oil started moving in inside the tube toward the reservoir tank. The whole process would much faster and easier with a glass tank, so I can't recommend this enough, USE A GLASS CONTAINER FOR THE RESERVOIR TANK!

I hope you enjoyed this Instructable, you can also check the video tutorial of this project by clicking on the video which is located at the top of this page. Please feel free to ask any questions in the comment section below and also, you can check my YouTube channel for more projects like this.