I have a Karcher 2500 pressure washer. Was not working removed the 4 bottom bolts and the pump oil came out was milkey. Cleaned valves and put the case back together. Now my question is where do I put in the pump oil. There are no visible places to put it in...it looks like it is completely sealed...HELP!!!!!!!!!!!
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Re: Can't fine where to put pump oil in
I handled various Karcher washers, but the 2500 I never came across it. Just the same I will give you a few hints and maybe the solution for the problem. When the oil is milkey this means it has water in it. This means that there are faulty seals for sure. Now in many Power Washers the compartment where the oil is located is filled with oil prior to assembling the head unit that contains the pistons. So you have to take apart the the complete head change all seals( HP seals, LP seals and OIL seals). There are pumps that take multi-grade oil(15/50) and others 90 grade oil. If your pump is fan cooled, it probably takes 15/50 oil. Now one of the main biggest problem of water in oil is Faulty and Scratched PISTONS.
So when you have the pump apart....check condition of pistons. It is useless to change seals if pistons are damaged.
Now one thing regarding your problem, is that you have to put together the head with the pump upside down, so that you can fill the compartment (where the pistons are pushed by the swash plate), with OIL, before you put back the complete head with good pistons,springs,seals, valves...etc..etc. These few hints are relevant to quite a number of Karcher washers.
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Hi Ken and welcome to FixYa. I am Kelly.
These pumps are notorious for seasonal problems.
Tip the unit to the point you can pour engine oil into the water inlet connection. What your attempting to do is free up the ball seats in the pump. They get corroded when they sit and lock in place. Adding the oil or a vast amount of WD 40 to the water inlet often does the trick for loosening up the seat balls and springs.
After you add the oil (3 - 4 ounces) or WD 40 to the water inlet line just slowly pull the engine through with the ignition switch off. As the water inlet cavitates add more oil.
Let it sit over night and then take a block of wood and a hammer and tap on the power head. Don't over do it and do it in such a manner your not going to shear off any bolts or break anything. But... be serious with the hammer and block of wood.
Then connect inlet water hose, the pressure hose and test the unit. You may want to purge the oil lubricant into a bucket before you start the engine.
Give it a try and see what happens.
I've seen that before many times. If you have removed all the broken parts you can purchace a new spill valve, grease it and install it. If not, you need to remove the pump and sit it brass side up before removing the bolts holding the brass to the aluminum part (you have to do it that way so the oil doesn't spill out. CAUTION: there is some spring tension on the brass head.), find the other pieces of the spill valve, then put it back together. Then you can buy a new spill valve and install it. there are several on-line companys that sell spill valves for karcher machines, but most of then you would need to call to get the part number and price. I'll help you out by giving you the part number.
You need to remove the pump and sit it brass side up before removing the bolts holding the brass to the aluminum part (you have to do it that way so the oil doesn't spill out.) CAUTION: there is some spring tension on the brass head.
Take the brass head off and set to the side on a rag or in a bucket. Dump out whatever oil is in the oil side, making sure not to drop the swash plate or bearing (the pieces sitting in the oil). Fill the oil end with aproximatly 4.5 ounces of Karcher pump oil, (or just 20w 50 weight non-detergent oil). Put the brass head back on and tighten bolts. Put the pump back on the machine.
The RY80030 Pressure washer has a Faip pump on it. There is no drain plug and you do not change the oil in it. The pump only holds 4.5 ounces of oil and the pump only has a life expectancy of between 30 and 50 hours. If for some reason The oil gets drained, remove the pump from the motor and set it on a bench standing up on end. Remove the allen bolts holding the water and oil sides of the pump together.Be carful as the piston springs are under load. fill the pump 3/4 of the way full and replace the head. there is a smoke stack on the pump but it is simply a breather not an oil fill.
If this helps please rate this post. Bill the Tech
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 www.roncoshop.com where you will be able to find pretty much anything for your preassure washer.