MAKE SURE THE TWO lINES THAT FEED THE REEl ARE EITHER CONNECTED TO EACH OTHER, AS IN WITH A CORN HEAD, OR THEY ARE CONNECTED TO THE FlEX HEAD. THIS ASSUMPTION BEING THAT YOUR NOISE IS ONlY WITH THE SEPARATOR ENGAGED. AlSO, UNDER YOUR FEET, THE VAlVE THAT CONTROlS THE HEADER HEIGHT HAS SOME SMAll POPPETS THAT ARE SEAl WITH A TEFlON RING, THEY DO WEAR OUT, CAUSING A FREQUENT THUMPING NOISE, WHICH IS THE HEADER BOUNCING, AND AlSO A WHINE, WHICH IS BYPASSING OIl. THE POPPETS ARE A BREEZE TO CHANGE, BUT GET READY TO GET FUll OF OIl. lET ME KNOWIJIJ