Hi Guys,
Any info/suggestions on this problem would be hugely appreciated - if you can view/copy and paste the links below you should get to two youtube videos of my EX200 pump at idle;
http://www.youtube.com/watch?v=wL3Y74JS8Bs
http://www.youtube.com/watch?v=QXjIYnx6Zfo
What the heck is that intermittent rattling noise? It's been a feature for the whole of my ownership (2 years ish) but is now getting more frequent/slightly louder and I am concerned for the pump failing. She still has plenty power and is tight despite high hours. The noise seems to be related to the small steel hose which goes from a plate on top of the pump (just above the 2 solenoids) to a tee into the pressure side of the pilot pump hose leading to the valve block......what does this steel hose do?? Is it related to the solenoid(s)? The noise can be clearly 'felt' when putting your hand on this steel hose, and can be detected in the pilot hose leading up to the valve block. The pump solenoids also seem to get pretty hot - too hot to keep your thumb on for longer than a second or two... What do these solenoids do? (apologies for my blatant ignorance...)
At certain working revs the rattle is still there and can be felt through the controls/machine in general, but it seems to be becoming more prevalent throughout the rev range... Cavitation?
Any help/advice would be really appreciated - an accurate (and cheap to fix!) diagnosis wins you the $$$$ equivalent of a nice xmas hamper!!!
Cheers
Any info/suggestions on this problem would be hugely appreciated - if you can view/copy and paste the links below you should get to two youtube videos of my EX200 pump at idle;
http://www.youtube.com/watch?v=wL3Y74JS8Bs
http://www.youtube.com/watch?v=QXjIYnx6Zfo
What the heck is that intermittent rattling noise? It's been a feature for the whole of my ownership (2 years ish) but is now getting more frequent/slightly louder and I am concerned for the pump failing. She still has plenty power and is tight despite high hours. The noise seems to be related to the small steel hose which goes from a plate on top of the pump (just above the 2 solenoids) to a tee into the pressure side of the pilot pump hose leading to the valve block......what does this steel hose do?? Is it related to the solenoid(s)? The noise can be clearly 'felt' when putting your hand on this steel hose, and can be detected in the pilot hose leading up to the valve block. The pump solenoids also seem to get pretty hot - too hot to keep your thumb on for longer than a second or two... What do these solenoids do? (apologies for my blatant ignorance...)
At certain working revs the rattle is still there and can be felt through the controls/machine in general, but it seems to be becoming more prevalent throughout the rev range... Cavitation?
Any help/advice would be really appreciated - an accurate (and cheap to fix!) diagnosis wins you the $$$$ equivalent of a nice xmas hamper!!!
Cheers