Harvey wins this round: my submerged lawnmower

focus frenzy · Sep 16, 2017

aggie81 said:
My bigger concern would be the hydrostatic transmission. If that is vented, as my Kubota is, water may have worked its way in there as well. I'd drain and have a look at the contents. You can always pour it back in if it's clean.

he did.

you got to get the engine good and hot and it will cook any water off.

Scorch · Sep 17, 2017

Aye, I drained it twice now, will refill it and see how it looks.

Tourmeister · Sep 17, 2017

focus frenzy said:
Diesel is not hygroscopic in the slightest. That's why diesel powered vehicles all have water separator drains.
You use diesel in a engine because it acts like a solvent and cleans out sludge and goo very well.

Hygroscopicity:

Diesel fuel is highly hygroscopic, meaning it readily absorbs water from moisture in the air. Water contamination in diesel fuel is of particular concern as it can lead to the corrosion of steel components and the promotion of microbial growth.

From here,

http://www.refuelsystems.com/en/causes-of-emulsified-water-in-diesel

Dissolved water, sometimes called entrained water, is the result of diesel fuel being hygroscopic. That means that fuel has the ability to attract and hold water from the environment, whether it is from humid air or condensation on the wall of a fuel tank. And as the fuel temperature in the tank increases, so does the amount of water that can be dissolved and held in solution in the fuel.

From here,

http://www.the-triton.com/2016/03/water-is-diesel-fuels-worst-enemy/

It will absorb water, but only until it is saturated. After that, it will start to just shove the remaining water through the system. Once the big pockets of water are gone, fresh diesel will help remove water from the places that are hard to mechanically flush, but which are still exposed to the diesel.

Harvey wins this round: my submerged lawnmower

focus frenzy

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Scorch

0

Tourmeister

Keeper of the Asylum