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Thanks for the help. I found the fill/ vent cap, removed it and filled to center drain hole. Going to take the top off the pump next and have a look around to see what is sticking and give the parts a good cleaning.
So shutting down the tractor. A note for all other JINMA 404 and 454 owners Same basic tractor. The hood will not open to expose the air intake when the FEL is in the down position. I was on the ground trying to shut the tractor off as it continued to go well beyond redline. Desperately shutting off the petcock and pulling on the fuel shut off valve. The tractor continued to race out of control (not the first time). First time my hood was up I covered the air intake to suffocate the tractor with no air it does work… Be prepared to be completely covered with black soot like a coal train!!!! This time no way. hood was down. FEL was down, Nothing helped I did no time to jump back up raise the FEL then Jump back down open the hood go find a rag and try to smother it. No way!!! I grabbed a wrench and undid the fuel line attached directly to the Injector Pump. The engine started to falter immediately. She shut down within seconds. WHew!!!!! Remember this was all during regular tractor operation. I was not prepared for anything like this to happen. This tractor only has 156 hours and its 16 years old… 2005 I know right!!!
Anyway thanks for the heads up about the oil in the pump/ governor. I checked it last night. It was virtually empty. I filled it up. Wish it was more accessible. But it is what it is. I guess that should be checked every time you put fuel in the tank. Hopefully that was it!! Where does the oil even go??? It not in a combustion chamber!!! Thanks for the heads up about pulling the top off the pump. I will do that in the next couple days and have a look in there to see what’s up and how it looks.
Thanks
well you have to remember how much fuel is held in the fuel filters and associated hoses that would need be used up before it starved out.
The fuel shut off lever is directly on the injector pump after all the other connection fuel lines filters etc. Its the last thing before injecting into the motor.
Thanks. I got it shut down. I was looking for help to fix the problem of why the fuel shut off did not respond correctly.
there is two different types of injectors on these chinese tractors as far as I know . One type is self lubercating off the engine oil via a hose the area around the oil filter and the oil pressure adjusting screw. And the other type uses only the oil resivour that is in the injector pump. So I am thinking you have the latter and the sump is dry. Look at the injector pump I think if yours is like mine there will be a domeish thing which is a vent on top of the pump , that when taken out is the fill. There should be a screw somewhere in the middle , maybe with a hose fitting capped off, that will be your oil level. And a drain on the bottom. So these pumps do not hold much oil and they fill kinda slow.So take the dome thing out and fill till it runs out the middle level screw with 15/40 engine oil. hopefully this will take care of it.
Ok I will check that out. I will also add a picture of the type of pump I have. I am wondering now if its dry and since it ran so crazy if I need to pull any of the pump apart to remove any scorching from any internals? I mean it ran long and hard at redline or above until I could get it shut down. Also anyone with any suggestions on why my fuel shut off would not work at those high RPM’s. Works fine on lower level rpms like anything below 1900. Dont dare go higher right now!Did you ever figure out your poblem your tractor with runaway rpms? I have exactly same problem. But my fuel shut off would not kill the engine. It just kep Maxing rpms out. I thought it was going to blow up. Petcock would not shut off fuel either. Finally pulled the fuel line off of the pump. It finally died after starving for fuel. Starts right up. But im afraid to give it much throttle out of fear of this happening again. What was your solution?
