GXD2527G Pressure Washer Pump

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30 weight non detergent works in most pressure washer pumps. available at most auto parts stores.

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Always use 30w non-detergent oil. The oil level of the Comet pump can be checked by removing the oil cap and inspecting the dip stick. The correct level should fall between the “Min” and “Max” lines on the dip stick. Do not run the pump dry.
20W50 Full Synthetic oil

6. Pump operation must not exceed the rated pressure, volume or a maximum rate of 3450 RPM`S. Failure to follow these instructions could result in damage to your pressure pump.

Crankcase oil capacity: 11 oz.
Pressure washer water pumps need relatively low oil recommended by the manufacturer, as specified in the owner`s manual. (Purchase pre-measured bottles of pump oil for water pumps without dipsticks.) Never use special oil additives or detergents, unless specified in the owner`s manual.
SAE 10W-30 or SAE 10W-40 are oils that are useful in both hot summer and cold winter days. For example, if you are looking to use your pressure washer and the temperatures are about 40 degrees (F) or less, SAE 10W-30 will be your failsafe option. Anything about 40 degrees, it can still be your best option.
ISO VG 68 and VG 100 mineral or synthetic oils are used, although properly formulated ISO VG 32 synthetics (but not mineral oils) will serve the majority of pump bearings and also virtually all types of rolling-element bearings in electric motors.
Crankcase Oil Capacity: 11.0 oz. Maximum Fluid Temperature: 165 F.
The type of pump used varies. Gear pumps trochoid pumps and vane pumps are all commonly used. Plunger pumps have been used in the past, but these are now only used rarely, for small engines. To avoid the need for priming, the pump is always mounted low-down, either submerged or around the level of the oil in the sump.
The pump oil should be changed after the first 25 hours of operation on a new machine. After the initial oil change, pump oil should be changed every 250 hours or every 3 months.
Read More… Description: Chevron Supreme SAE 5W30 motor oil is ideal for use in pressure washers that use four-stroke gasoline engines.
The difference is the additives added to give the oil certain properties. Common additive difference between pump and regular motor oil will be: Magnesium sulfonate is used as a detergent additive for motor oil. Silicone compounds like PDMS are used as an anti-foaming agent for pump oil.
A: Hello An23, It is certainly possible to use Pennzoil High Mileage SAE 10w-40 in your pressure washer.
Suitable for use where a straight 15w40 Non-Detergent oil is specified for use in various makes and models of pressure pumps. This high quality oil is blended from virgin base oils and carefully selected additives to help protect washer pumps from corrosion and oxidation.
Can I use 4-cycle engine oil for the pressure washer? Yes. Most pressure washers have a 4-cycle engine.
Normal viscosity for vacuum pump oil is 68 to 77 cst at 40°C.
Centrifugal pump shaft bearings typically are lubricated with ISO viscosity grade (VG) 32, 46 or 68 R&O oils.
“It is a common practice in the construction and mining industries to use engine oil SAE 10, SAE 20 or SAE 30 with the lowest API rating as a substitute for hydraulic oil ISO 32, ISO 46 or ISO 68, respectively for hydraulic systems of heavy equipment.

Milky pump oil is caused by water getting into the crank case. Water can enter the crank case due to: Condensation on the inside of the crank case. Bad oil seals between the crank case and pump head.

The unit of measurement is either PSI or Bar. The ideal oil pressure varies depending on the car brand and model, but generally, the ideal oil pressure is between 25-65 PSI.
We recommend to use type 32A hydraulic oil.
We recommend to use type 32A hydraulic oil.
The recommended oil for a Silvan Comet diaphragm pump is SAE 20W/30 Multigrade oil. this has less cushioning effect between the piston and the diaphragm.

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Who has axd 3020 oil in isle of man – Comet GXD2527G Pressure Washer Pump
ANSWER : 30 weight non detergent works in most pressure washer pumps. available at most auto parts stores.

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In the site gauge on the side of the pump, where should the oil level be?
ANSWER : Oil should cover half of the site gauge.

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Oil appears to have come out of the oil filler cap. Is this a sign of overfilling the oil, or something else?
ANSWER : Id definitley say its over filled. try checking the dipstick

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Oil seeping from Comet BXD 2525 pump – Comet BXD 2525 G Pressure Washer Pump
ANSWER : Out the drain plug ? Sight glass window ? Under the pump where the crankcase meets the pump head?
tighten plug, replace oring on sight glass or replace low pressure seals if near the pump

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What oil do i use in the pump? The oil is milky and needs changing.
ANSWER : Well you can use direct recommended from Ace Hardware see link.


They recommend 250 hours, but i’d change more often, like you said when it’s milky. If it begins to get water in the oil sooner, that indicates your piston to crankcase seal is beginning to leak.

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My pressure washer will start for a second and then shuts down. I just bought it from a friend and don,t think the springs to the govner are right but not sure.would like a skicamitc of the engine or manual so i can see if they are right
ANSWER : When you start your engine open wand trigger this will probably allow you to get the engine warmed up and I think it’ll work for you it used to work for us .

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Lost high pressure
ANSWER : Piston rings defective. Replace. Possibly scored cylinder walls that may need to be resurfacing or replaced.

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Oil for Comet pump
ANSWER : Aftermarket oil will be fine just use same grade of oil,all manufacturers want that extra kick,

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