The skid steer starts good but won't rev up, no matter how far you push the accelerator lever down. The exhaust is a grayish white in color and doesn't clear out even after running for a while.I'm thinking that one or more of the injectors are bad.
Yes I have changed the air and fuel filters.Have you changed the air and fuel filters?
If it starts well, i can't see it being an injector. Bad injectors make engines a pig to get started and they will always smoke, not just when you try and get them to rev up.Yes I have changed the air and fuel filters.
The linkage at the motor moves freely and didn't change anything.If it starts well, i can't see it being an injector. Bad injectors make engines a pig to get started and they will always smoke, not just when you try and get them to rev up.
Can you try moving the linkage at the motor its self? see if that changes anything.
Do you know the model of engine your machine has?The linkage at the motor moves freely and didn't change anything.
Very good chance the check valve in the pump leak-off return line is plugged. It is the fitting screwed into the top of the pump, there is a tee on top of it that the injector leak-off is plumbed into. In that first fitting is a spring and glass check ball. That spring acts as a filter for bits of debris that come from the disintegrating governor damper. As the fitting plugs the engine will gradually lose power, exhaust will make your eyes water. If it gets completely plugged, engine will die. Typical symptom is that engine will start and run decent for a short time then lose power. Common vice of the Roosa DB pumps.Do you know the model of engine your machine has?
It's almost as if the govenor isn't allowing it to rev up or something on the injector pump isn't allowing it to increase the amount of fuel being delivered to the injectors.
If you still think it could be an injector, you can do a quick/messy test by removing them and hooking one up to the pump sitting outside of the engine. Crank and see what the spreay pattern is.
Need to correct, the tee on top of offending check valve does NOT have the injector leak-off line, that is farther up the line. Tee on top of check valve has a cap on one side.Very good chance the check valve in the pump leak-off return line is plugged. It is the fitting screwed into the top of the pump, there is a tee on top of it that the injector leak-off is plumbed into. In that first fitting is a spring and glass check ball. That spring acts as a filter for bits of debris that come from the disintegrating governor damper. As the fitting plugs the engine will gradually lose power, exhaust will make your eyes water. If it gets completely plugged, engine will die. Typical symptom is that engine will start and run decent for a short time then lose power. Common vice of the Roosa DB pumps.
I have a 1840 with same problem. It turned out to be electrical. I just use a bungee to hold the fuel pump open. Runs fine. I assume as I start it, it opens and when I let go of the key no current to the solenoid and the machine shuts down.i have a case 1835c that takes about 5 seconds or more cranking to start and only runs a little faster than the starter ,for as long as the key is in the start position , then as soon as i release the key to run position it cuts off and winds down. it seems to run and smoke the same whether throttle is full or 10%.
i ran a bypass direct from battery to cut off solenoid with no change in results. cleaned the air filter which was fairly good anyway for no change in result. had fuel flowing out the fuel return tee on top of the fuel pump until i put the hose back on. i am stumped for now . i seems like a fuel problem but can't figure out what is causing it and don't want to tear the engine appart, ...yet.
does the 1835c have the same glass ball check valve ? there seems to be some common symptoms . what else can cause these symptoms?
any useful info is very appreciated . the case manuals don't give much on this topic. thank you.