Combines SICK 8820

[TwinRotor]

Is there any kind of automatic advance in the injection pump. What this does when the engine begins to pull down it turns up the fuel. Kind of like kicking up extra boost on a turbo. Another thing it might just be a worn out injection pump. COSTlY TO FIX.

 

[dug]

There is a filter that screws up inside of the tank. Right above sediment bowl. You get covered in fuel taking it out.

 

[BA]

I check for the screen in the tank and there isnt

 

[Houndog]

We had problem like that once and we had something in are tank that had hole partialy plugged. We took air hose and blow back through line. It started working fine then. maybe you will get lucky also. Good luck

 

[Cordell]

I just had the same thing about a week ago. I went through everything you did until i found the problem. Take out the sediment bowl on the bottom of the tank ; take out that pencil screen and you might find a small amount of chaff or whatever in the small cavity that the screen sits in. I found out that it takes next to nothing in there to resrict the fuel flow enough to leave you with no power at all. Good luck

 

[Bigsky]

We had this problem once when we ran an 8820. Changed fuel filters, cleaned sediment bowl. Was just about to check pump, when old custom cutter familiar with this problem said that we would have to take the sediment bowl off, and unscrew the assembly from tank. One lucky guy gets to stand there with finger to stop diesel fuel from pouring out. Blew the assembly out,(tiny spec of chaff inside) and after reasembling, had no more problems. Try it first, can't hurt. Good luck.

 

[slipclutch]

Most of the advice posted here is on the right track I would say. we have had problems with our 7720s after both machines at differnt times had the fuel cap accidently left off. There is a screen going up into the tank but you do not have to remove it to clean it if it happens again. Remove the sediment bowl and open the fuel shut off valve.If the screen is clear you will have a strong stream of fuel going two directions. If the flow is at all puny put gloved finger on one side and blow with rubber tipped air nozzel through the other side forcing air backwards into the tank. The entire operation usually takes less than 5 minutes. Belive me I have had practice. I discovered a couple of years ago that the later production 20 series combines installed a screen right in the top filler neck of the fuel tank to help keep chaff and junk out. This can be added to earlier model machines. It is located right under the rubber hose that clamps to the filler neck. Also make sure that the vent screen is not damaged allowing chaff to be sucked into the tank. We actually even covered ours with a plastic sack These two things will help keep dirt from the tank. Of course it does help to keep the fuel cap on. Hope this helps.

 

[farny]

Before you go and do all that stuff with your fuel tank and sediment bowl, check the inner air filter in the grain tank!! We just had the same problem a couple weeks ago, we were going nuts blowing screens, sediment bowls, and lines out, then changing filters, drained the tank twice. But then we watched in the grain tank when running and that rubber elbow on the end of the filter canister was being sucked in so bad, it was almost ready to break. We replaced the inner air filter and voula!!! We haven't had a problem since. We now have a new fuel pump, sediment bowl, screen, fuel filters and return line, all because of that darn inner filter. The filter is supposed to be WHITE, replace it, don't try and clean it out!! Farny

 

[BA]

well we are finding parts of the problem. the jd rep

 

[exgreen]

Hi, Follow the fuel line from the tank along the