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Pressure washer leaks gray oil from bottom of pump.

My Simpson MSH3125 pressure washer (Honda engine) is leaking gray oil from the bottom of the pump assembly. Is this something I can fix?

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6 Suggested Answers

  • 2 Answers

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Posted on Jan 02, 2017

  • 27 Answers

SOURCE: 2.2l toyota camra engine has pressure leaking from engine when oil fill is removed from valve cover, is this normal, i also have small oil drip at pan gkt.

replace the pcv valve. If it is not working it will allow pressure to build up in the crankcase. this will cause leaks everywhere.

Posted on Jun 29, 2008

  • 10 Answers

SOURCE: Oil leaking from pump

top is a breather you may be overfull of oil most pumps you can use engine oil .drain and put in half litre or if it has a sight glass top up to low side of glass and try it out.possible your seals on way out this usually then leaks at front or gets water in.if you still have good pressure oil seals easy to do.

Posted on Apr 21, 2009

  • 3600 Answers

SOURCE: pressure washer that leaks oil through the air breather

Most likely your air filter is plugged or dirty, or the crank case vent valve needs to be cleaned.if it still does it check that the oil level is at the full mark, if overfilled it would cause the same problem.

Posted on Jun 22, 2009

  • 174 Answers

SOURCE: Troy Bilt pressure washer model 020209 will not

A leaking gun will kill all the pressure. You may need to repair or replace the gun

Posted on Sep 17, 2009

SOURCE: karcher pressure washer leaking oil

Usually electric pressure washers only have oil on the pump, so its very likely that you will find the problem there. I'd say check all the pump seals and if that doesnt solve the problem, you can check to see if all bolts are tight when you close the pump back.
If by any chance you are looking for a new machine and/or parts for your machine, log in to where you will be able to find pretty much anything for your preassure washer.

Posted on Jun 26, 2012

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What oil viscosity and how much on my simpson pressure washer msv 3024

Here's a link to your Simpson manual:
No oil is required for the pump.

10W-30 is normally specified for a Honda GCV160-GCV190 engine. You drain the oil by removing the oil cap/dipstick and then tilting the machine on it's side so that the oil can drain out if the oil fill into a container. (Drain when warm so it flows easily).

The capacity of the engine is ~18.6 oz. Refill amount is ~12.0-13.5 oz. (either engine).

When refilling, add oil and check on dipstick often. To check, press the dipstick into the oil fill, but DO NOT SCREW IT DOWN. Just insert the dipstick in until it contacts the top of the oil fill. The correct reading is between the lower and upper limits marked on the dipstick. (You may have to look carefully to see the marks).

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What kind of pump oil

What you have is a generic pump from china more than likely. Its built along the line of a FAIP pump. They arent supposed to have the oil changed in them at all. Most are sealed pumps but may have a plastic plug in it. If you must replace the oil then I would suggest Pressure washer parts catalog quick links Pressure Washers High Pressure... and get this item 4.5 OZ. AR64545 OIL FOR AXIAL PUMPS. It is recommended for pumps built similarly but not for your specific pump. But it should work. Good luck. W

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What kind of pump oil for simpson gcv190

I need to know the model of the pump you have. You are giving us the model of the engine which is a Honda GCV190. Can you tell me the model on the pump itself. It is more than likely an AR pump but I need to know . It is more than likely going to take 30 weight non detergent but some pumps take specific oil. You can also call Barens at Pressure washer parts catalog quick links Pressure Washers High Pressure... They can hook you up with the correct oil for your pump. Good luckOADXAV

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The pump is leaking some gray fluid

Gray fluid is usually indicative of old oil with water mixed into it. First you have to determine if the fluid is coming out of the motor or pressure pump. Then change the oil in that, or both, and then watch the condition of the oil when you use the washer. With new oil, it won't turn gray but will get a milky coloration to it. There shouldn't be any way for water to get into the motor oil short of the engine being sprayed directly with high pressure water. If water is getting into the pump oil you'll have to check the seals inside the pump.

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How many ounces or quarts of oil do you put in the engine and what kind when changing the oil?

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The pump head has a plastic window on side of pump. Oil should fill to middle of that window. Pump should have 20 or 30 weight NON detergent oil. SAE20 SAE 30 I believe. Auto parts store will know which is NON detergent.

The engine oil is ordinary 10W30. We used to change oil after each painting season by tilting engine to the side. Do not turn engine on it's side or upside down or oil will run into carburetor.

I don't remember exactly how many quarts we put back. Maybe 2? Fill up reservoir until oil is about half-way up dip stick.

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Oil leak appears to be from pump, not engine, GC160. What oil and how much should be replaced. what might be source of leak

some pumps have a side glass and oil should be half of side glass and depends on manufacture oil is different if general pump you can use 30w non detergent

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Oil leak at top of pump

The oil in the pump is probably leaking because a seal is blown and water is getting into the piston housing. Take a look inside at the oil. It should be brown and translucent. If it is gray, white or milky, you have a blown oil seal. This reservoir should only be 1/3 full of non-detergent oil to begin with. Hope this helps

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