Do I need to put pump oil on this k2400 I mean the

front seal, leaking oil means there is less oil in engine. continue and you will a new engine, have it repaired quickly.

Need to know year and make of vehicle,but oil should not be coming from water pump mounting bolts ,check to see if oil is leaking from above the water pump .it may be just accumulating on water pump .steam clean engine and check, you could remove the bolt with oil around it take a mirror and check to see if the hole goes into crank case or if it's a blind hole ,if it goes all the way threw oil is running down into hole around threads of bolt and out to where you see it , when you replaced water pump do you remember seeing anything on the bolts (RTV, blue or orange color lock tight, if so remove bolt put RTV on bolt and reinstall it(if you decide to use lock tight do NOT use red the bolt will not come out ever again, make sure you use blue lock tight!!!

It's in the sump,remove sump jack up motor to gain removal of sump pan.

There is a bolt item 8 below on the very end of the drive shaft that has to be removed before you can remove the pump assembly.

See page 16 item 8 of this Manual: (<-click and download

Then you should be able to remove the pump.

Thanks for using FixYa.

Kelly

http://www.landanorthwest.com/documents/instructional/spill_valve_instructions.pdf

hi what what engine?
if it's knocking then most likely damage has been done to the bearings

Dear glenoaks06,
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.
Regards,
Fulltech.

http://www.pressureparts.com/TreeView.aspx?node=71067&node1=71068&anchor=71068#71068

go to this site, select the model and you will have the info you need.

if this is occers when at rest it could be the pump non retern valve, witch will be just in side tghe machines outlet behine the chemical injector, you will need to unscrew the injector and the valve sits behind it, if this happens when at use it could be a blocked nozzle

If you mean the power steering pump, it will have to be removed to access the bolt. It's just 2 bolts. You get them through the holes in the power steering pump. Just unbolt it and push it aside.