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Thomas 703T133 engine trouble
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<blockquote data-quote="Tazza" data-source="post: 43213" data-attributes="member: 82"><p>Kubota engines are easy to bleed.</p><p>Make sure you have a primer bulb attached to the fuel line. Open the bleed screw that should be on the injector pump where the fuel comes in. Squeeze the hand primer till you can't feel any air. Close the bleed screw and give it another pump, it should be stiff.</p><p>Crank, it should splutter at first, then fire. It takes time for the fuel to reach the injectors.</p><p>Its also possible that the injectors have stuck due to sitting. You can remove them and disassemble them. Keep the parts seperate though. The main part you want to fiddle with is the tip. Remove it and ensure the nozzle and housing move freely. You should be able to remove it and slide it back and forth with ease, you will see a small piece extending out of the injector, this is delicate, don't break it. I have had some that were rather tight, i had to hold the back of the nozzle in the vice and lever it up to free it. Used WD40 and compressed air till it was smooth, worked great.</p><p>If you remove the high pressure lines, you can crank the engine, look for fuel welling up on the delivery nozzles. If there is none, make sure your fuel stop lever is not stuck.</p><p>It gives you something to start with at least.</p><p>When cranking and NO glow plugs, give it a quick shot of wd40 through the intake, see if it gives a quick jump. If so, you have compression, but no fuel.</p></blockquote><p></p>
[QUOTE="Tazza, post: 43213, member: 82"] Kubota engines are easy to bleed. Make sure you have a primer bulb attached to the fuel line. Open the bleed screw that should be on the injector pump where the fuel comes in. Squeeze the hand primer till you can't feel any air. Close the bleed screw and give it another pump, it should be stiff. Crank, it should splutter at first, then fire. It takes time for the fuel to reach the injectors. Its also possible that the injectors have stuck due to sitting. You can remove them and disassemble them. Keep the parts seperate though. The main part you want to fiddle with is the tip. Remove it and ensure the nozzle and housing move freely. You should be able to remove it and slide it back and forth with ease, you will see a small piece extending out of the injector, this is delicate, don't break it. I have had some that were rather tight, i had to hold the back of the nozzle in the vice and lever it up to free it. Used WD40 and compressed air till it was smooth, worked great. If you remove the high pressure lines, you can crank the engine, look for fuel welling up on the delivery nozzles. If there is none, make sure your fuel stop lever is not stuck. It gives you something to start with at least. When cranking and NO glow plugs, give it a quick shot of wd40 through the intake, see if it gives a quick jump. If so, you have compression, but no fuel. [/QUOTE]
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