Power washer pump oil change.

   / Power washer pump oil change. #1  

dodge man

Super Star Member
Joined
Oct 25, 2008
Messages
12,440
Location
West central Illinois
Tractor
JD 2025R
I thought to look at the sight glass on my pressure washer pump and it had enough but looked milky. Sure enough it was. It’s probably about 15 years old and I’m guessing I’ve changed it once at the most. The manual says every so many hours or every 3 months. I’m not going to change it every 3 months but I need to do it more often. It’s a Simpson power washer..
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   / Power washer pump oil change. #2  
Eww. That’s nasty. Maybe after changing it, run it for a half hour and change it again.
 
   / Power washer pump oil change. #5  
Almost all of us has some piece of equipment that gets overlooked!
Who's perfect?
Good Luck!
 
   / Power washer pump oil change. #6  
I change mine every year.
 
   / Power washer pump oil change. #7  
I think I better check mine out, I’m way overdue to change it.
 
   / Power washer pump oil change.
  • Thread Starter
#8  
I changed it again, it still looked contaminated, maybe not as bad. Is there some kind of seal or gasket that might be bad that allows water into the oil side of the pump? I’ve never had one apart. It wasn’t overfilled when I changed it the first time.
 
   / Power washer pump oil change. #9  
I changed it again, it still looked contaminated, maybe not as bad. Is there some kind of seal or gasket that might be bad that allows water into the oil side of the pump? I’ve never had one apart. It wasn’t overfilled when I changed it the first time.
I change all of my pressure washers oil quarterly but they will run 8-10 hours a day, 5 days a week at times. Sound like you have some leaking seals or bad plunger. I would check into that. If you aren't running a bypass system on it, I would look into adding one. Heat is the killer on these machines so you need a constant flow of water even when OFF the trigger.
 

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