Bobcat S150

[rpmitch]

In need of help, let me give some history, bought used S150 with 1800 hours it when it was loaded it moved around with out moving the sticks so I knew that had to be adjusted. Went to unload and did not power up, found out 100 amp fuse was blown and turned out to be a short in the glow plug jumper. Got that fixed and running and got the sticks adjusted everything was good except the pedals were not acting properly. Up was fine but down made the arms go up still and the tilt was similar. Now it wont start and just cranks. Will start first time in morning and run for 3 seconds and seems to choke out. I did pull the fuel shut off out and still wont start. Just cranks and blows smoke. I need help and have run out of ideas

 

[Tazza]

Sounds like a glow issue. You did state that there was a short that blew the fuse. Make sure when you turn the key and the glow timer counts down, that you actually get power to the glow plug rail. As you are getting smoke, you are getting fuel.
Just a test, open the bleed screw on the injector pump and squeeze tha hand primer, does it feel firm or can you feel bubbles? if there are bubbles, you have a cracked or broken fuel pickup tube.

 

[rpmitch]

Sounds like a glow issue. You did state that there was a short that blew the fuse. Make sure when you turn the key and the glow timer counts down, that you actually get power to the glow plug rail. As you are getting smoke, you are getting fuel.
Just a test, open the bleed screw on the injector pump and squeeze tha hand primer, does it feel firm or can you feel bubbles? if there are bubbles, you have a cracked or broken fuel pickup tube.

I do not think that it is a glow issue, we had temps in the low 90's yesterday and it would not even cycle. I did pull all the plugs and tested them and they tested good. I did jump a wire from the battery over to the glow plugs just to check if that would help. It did not. I did open the bleed screw on the injector pump and the bulb felt good, I also opened and bled the fuel filter which I have replaced.

 

[rpmitch]

I do not think that it is a glow issue, we had temps in the low 90's yesterday and it would not even cycle. I did pull all the plugs and tested them and they tested good. I did jump a wire from the battery over to the glow plugs just to check if that would help. It did not. I did open the bleed screw on the injector pump and the bulb felt good, I also opened and bled the fuel filter which I have replaced.

that problem solved, ended up being sticks out of adjustment a little and having enough hydro pull on the engine that it would not start. But now my pedals are out of whack, is that in the valve body?

 

[Tazza]

that problem solved, ended up being sticks out of adjustment a little and having enough hydro pull on the engine that it would not start. But now my pedals are out of whack, is that in the valve body?

How are the pedals out? They should spring back to neutral....

 

[rpmitch]

How are the pedals out? They should spring back to neutral....

they do spring back to neutral but the lift arm creeps up by its self and same with the tilt down creeps also. When operating the pedals the lift up goes really fast then when you push down the arms still go up at normal rate until the pedal is fully depressed then it moves very slowly down (it may take 2-3 minutes to go all the way down). The tilt acts the same way. Before I got the lock to disengage on the sticks and there was a drag on the hydraulics the pedals worked perfect but as soon as the lock disengaged the pedals acted up. All that I can think is there might be something keeping the valves open in the body but I dont know