Question about Psi Blue Max 2200 High Pressure Gas Power Washer
It idles rough also looses pressure when using it. Changed spark plug.
Still the same
First you must find out where the real problem is. So first you must see that the engine works smoothly.(checking spark plug, spark plug gap, fuel mixture..etc..etc..). You have to do this by having no load at the pump. So remove water inlet hose and gun. If you manage to get the engine running smoothly,...then for sure you must service the pump. The pressure usually decreases from a faulty "Spill Valve". When the gun is closed the spill valve compresses and lets water circulate. When the gun is opened, the spill valve extends and closes an opening at its end. If this opening is not closing correctly, then the water keeps circulating and hence no pressure. My advice change the 'Spill Valve" by a new one. If the pressure is not 100%...then the next step change the suction valves. To change the suction valves, you must also change the high pressure and low pressure seals. Also better to change oil and oil seals. BUT the pistons must be examined. If the pistons have damage and cracks, these must be renewed, because they will ruin again the seals. In problems like these, I always fix the problem by changing the Spill Valve and the suction valves if need be.
When all necessary service is done, always try to start the machine with no load first. Also inportant that all seals and spill valve must be lubricated with the correct silicon grease.
Posted on Apr 22, 2009
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Posted on Jan 02, 2017
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