Older Machine What Do Tou Think Russ?

today while washing a house a milky oil+ water mixture was dripping from pump. after viewing what looks like a light rue in the sight glass was very concerned....
did a search and hope this quote is correct?



"Milky oil is a problem will ALL pumps. All pumps have a breather and as they get hot the air in them expands out through the breather. When you switch it off the pump cools and draws in air that is normally humid. The water condenses and next time you use the pump mixes with the oil. Over time the amount of water increases and so the oil goes milky. This is normal when operating in a damp environment. There is no cure except to change the oil from time to time. (Like it says in the book!!)"


and this quote is wrong?

"The V-Packings keep the water in the head. There are also oil seals that can go bad, and they can be replaced. You have to take off the head, and remove the plungers, then pull them out, and replace with new ones. It is not too hard of a job, but I usually end up throwing the whole pump out and spending $300 for a new one."

changed oil and has not ben milky since. knok on wood!
 
Some times milky oil is not water at all. If someone added Regular Motor Oil it is the detergent in the oil that turns the oil white. As air is drawn into the vent it causes air to be injected into the oil. Always use Nondetergent type oil.
 
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