Vacuum trick results

Doug - Iowa · Apr 30, 2018

Well my hydraulic hose came in today and I tried the vacuum trick to change it on my Massey. Absolutely not one drop of oil came out. But I had buckets at the ready in case it didn't work. Popped the old hose off, put the new one on, topped off the oil (lost some while sitting waiting for the part) and we were good to go in 10 minutes.

Graham of New Zealand · Apr 30, 2018

Excuse my ignorance but just what is the method behind the "Vacuum" mothod of hose changing?

Doug - Iowa · Apr 30, 2018

The hose is the bottom sump hose for the hydro, which contains 11 gallons of oil. Hose had a small crack in it, and was leaving drips on the floor. When I ordered the replacement hose I asked the dealer if he had any advice. He said don't drain the oil, hook a vacuum cleaner hose to the fill tube and turn it on. Then remove the hose, and no oil will leak out because the vacuum is holding the oil from running out. And, the air volume in the top of the housing keeps the oil from being sucked into the vacuum. I posted here for advice as it sounded like a mess in the making, but most replies indicated the process does work. And sure enough it did.

Bob Harvey · Apr 30, 2018

Cool ! Was duct tape involved ?

jeffcat · Apr 30, 2018

Hurray! !! Glad to hear it worked. The video makes it look so simple. Just when you think everything has been discovered.
shop vac and oil.

JF in MI · May 1, 2018

About 40 years ago I tried a system similar to that (crankcase evacuation) on a race car. Built a venturi into the exhaust system which was hooked to the crankcase vent. Did prevent leaks but also sucked in the valve cover gaskets.

Vacuum trick results

Doug - Iowa

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Graham of New Zealand

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Doug - Iowa

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Bob Harvey

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jeffcat

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JF in MI

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