Fluid Extractors

[Pontiac787]

Some posts on here have gotten me thinking that a fluid extractor would make winter time oil changes much more pleasant.

I’m looking at the mityvac 8.8L

https://www.amazon.com/Mityvac-7201-Fluid-Evacuator-Plus/dp/B0002SR7TC/ref=mp_s_a_1_3?keywords=mityvac+7201+fluid+evacuator+plus&qid=1578426114&sprefix=mityva&sr=8-3

and the EWK 6.5L

https://www.amazon.com/dp/B07LGTGMWN/ref=emc_b_5_mob_t

I like the capacity of the Mityvac and that they are a known company. The EWK, on the other hand, can be run manually or with air, is cheaper, and the hoses store in a tube on the unit.

What experiences have people had with these extractors?

 

[MagnusM4]

The EWK is what I have and it works great. So far I’ve only used it to extract ****** fluid, and it has worked well for that. No experience with the mityvac though.

 

[kd3pc]

Mity Vac here and it is as good as it gets. I have done hundreds of boat oil changes and not a drip or leak. It works as well as any other process. Mine came with several sizes of lines and a connector or two.

 

[matt_i]

I've used the Moeller Fluid Extractor on more oil changes than I'd like to comment on (in reality its about 7 total). Most of it was trying to get the milkshake out of my motor after I blew up an intake lower in a 4.3LV6 Volvo Penta.

I don't think it works as well (as completely) in an automotive engine. The dipstick tube has to end fairly high.

The Penta design, connects the dipstick tube via adapter to the original drain port location at the bottom of the pan, which helps any extractor work better. It also has the handy MGHT (male garden hose thread) adapter already part of the dipstick tube assembly.

 

[Pontiac787]

Thanks guys. Magnus - How long have you had the EWK. I’m curious about durability.

 

[mrjaw14]

If you have a regular hand vacuum pump, you can make small scale fluid extractors. I have a mityvac hand pump. I took a large jar, but any sealable container will work, and epoxied two hoses to the lid. One goes to the bottom, the other just past the underside of the lid. Use some plastic barbs for easy connections to an inlet hose and the vacuum pump. When you pull a vacuum on the jar the inlet hose will **** fluid into the container.

I realize this is smaller scale than the options being discussed, but thought it was worth mentioning. The Venturi feature of the EWK seems really cool. I have an airlift kit for doing coolant changes and the pneumatic Venturi is sweet. Having that on a fluid extractor would be handy. I’ll be honest, I’m going to diy me one to use instead of the hand pump for my small scale extractor.

 

[Pontiac787]

I ended up going with a Mityvac 7400. I figured I would share my reasons in the event it helps someone else decide.

I went with Mityvac over EWK for 4 reasons. Longer tubes (5ft. vs. 3 ft), rebuild parts are readily available, capacity was higher, and the brake bleeder attachment has an actual ball valve. The EWK had a crimp-lock setup.

I went with the 7400 because I wanted the ability to use the extractor without a compressor, it was about $20 cheaper than the 7201, and I don't need the ability to pump fluids from the unit.

A quick plug for Tooltopia. They had the best shipped price for the extractor and the brake bleeder attachment combination. I ordered it mid-morning on Friday and the darn thing showed up on Saturday. Used it today for an oil change and it worked great.

 

[2ndGearRubber]

https://www.amazon.com/gp/product/B07GBXKQ9N/?tag=atomicindus08-20

I got this generic one, added some mity-vac super long hoses. I've had zero luck changing oil with it. However it's nice for drain/fill on transmissions, sucking blocks empty of coolant, etc. Dispensing feature is pretty cool.