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pw pump

daytona54's Avatar

Join Date: Mar 2009
Posts: 14

03-08-09, 02:49 PM   #1  
pw pump

now that i have my pw engine working thanks to members of this group it seems part 2 is ready to fix.........the pump doesn't seem to be working correctly,(i took apart pump and nothing seems to be broke or worn)i only get real pressure when i depress the trigger that only lasts for a second and if i depress and release trigger fast the pressure only works for a second when i depress,i removed the gun hose from the pump and seem to have good pressure with water shooting out,i checked hose and gun for clogs and are clear thanks again for anyone to help with this part '2'
ps; craftsman-model 580.767700, 7hp..engine # 120412,model # on pump sticker is sjv 3g27

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cheese's Avatar
Forum Topic Moderator

Join Date: Jul 2001
Posts: 16,570

03-09-09, 12:34 AM   #2  
Take the unloader valve apart and clean it, the bore it fits in, and replace any Orings if needed.

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