Recent content by firebird_1995

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    773 injection pump troubleshooting

    I took the injectors and delivery valves on the injection pump apart and cleaned them. rechecked for spray and it checked out good! Put it back together and it fires up on the first hit now! It sat for a few years with fuel in the lines so it was gummed up pretty good.
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    773 injection pump troubleshooting

    also, when i had the injectors off the lines, while squeezing the primer bulb, the #3 line has a steady stream of fuel coming out. seems like the delivery valve might be stuck open on that cylinder.
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    773 injection pump troubleshooting

    im pretty sure mine is shot. the engine is hard to start, but once it starts it runs good. i took the injectors out and checked the spray pattern by hooking them back to the pump and cranking the engine over and all 4 injectors are good but im only getting good enough pressure to crack the...
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    new to site, have a question about wheel motor noise

    Yes I did cap the lines. It would stall the engine at full stroke. I'm wondering if the pump might be entraining air and causing cavitation.
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    new to site, have a question about wheel motor noise

    i figured rather than start a new thread i would just bring this one back. well my junkyard wheel motor worked outstanding..... for about 1 hour. the old problems are back again. moaning, groaning, wont move forward or backward. pretty sure its shot now too. im at a loss with this one.. i...
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    new to site, have a question about wheel motor noise

    ive always considered myself to be mechanically inclined. im a refrigeration and a/c service tech so i do a lot of troubleshooting. however, i am new to diesel engines and skid steers so i did rely on the experience of the members of this site. the search tool is your friend.
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    new to site, have a question about wheel motor noise

    i dont recall seeing a c-clip on the motor. i replaced the motor with a good used one and that healed it. thanks!
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    runs for 5 minutes then dies

    i zip tied the line about 3 inches higher so i can burn out as much of the 10 gallons of fresh fuel i just put in. after that i am going to do the flush. what did you do to flush it?
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    runs for 5 minutes then dies

    Figured it out. At some point in its life someone pulled the supply line going into the tank out a little bit and it allowed sand to get into the tank. After it ran for a few minutes the pickup screen would bury itself in the funk at die
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    runs for 5 minutes then dies

    I will try that today. Last night I took off the primer bulb and tried blowing air into the tank (fuel cap off) and no air would move so im guessing its plugged. Unless there is a check valve somewhere in between the primer bulb and tank.
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    runs for 5 minutes then dies

    Well I got my 773 bobcats wheel motor fixed. Now that I can actually run it I am able to try out the engine. What I've noticed is it will run good for about 5 minutes then begin to lose power. It happens gradually but eventually the engine will stall. Its not running long enough to be...
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    new to site, have a question about wheel motor noise

    i have a 94 bobcat 773 that i bought not running. after i got it started i noticed the left wheel motor groans while trying to move in forward and reverse. using the right side seems to help it out but its not pulling its share of the weight. after about 10 minutes of limping it around it will...
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