Diesel........ if motor on a tractor has hard time running sounds like ithas no power????what is wrong??

Answer 1

Da Finger is right, or if you have ever run out of fuel or have a leak in the fuel line on the suction side you might have air bubbles in the injectors. With the engine at idle, crack the injector bleeders open one at a time, and see it it makes a difference in how the engine runs. Check fuel filter and air filters and pre-cleaners too.

Answer 2

You either have air in the fuel injector lines that can be bled by cracking each injector open one at a time till nothing but fuel runs out of it and tightening it back up. There also may be a bleeder screw at or about where the fuel filter is or the primer pump. The primer pump usually looks like a little plunger. If there is a a small bolt near it you can crack it open and bleed it there. Crack the lines open one at atime at the fuel injection pump 1st then go to the injectors and repeat the process if you found air at the bleeder valve.
There is also usually a water separator that catches water in the fuel and separates it from the fuel. There will be a drain bolt on the bottom of that too. Make sure all of the water is drained out if that area.Water in the fuel could cause that problem too. And the separator can get over full with water and still feed water to your engines fuel lines.
A good way to clean the injectors after all this has been tried or found is to change the fuel filter.Fill the new fuel filter up with yes believe it or not ATF Automatic trans mission fluid. It cleans and lubricates the injectors
So your looking at.....A wrench to crack open injector lines one by one starting with the fuel injection pump,then the connectors at the fuel injectors,and a quart of ATF. That should be all you need unless the fuel system is sucking in air somewhere else. And draining the water out of the fuel water separator. Not much money involve at all. Just make sure that anything you crack loose is tight when you finished and not leaking. Make sure your air cleaner isn't clogged all to hell too

Answer 3

You may be loosing the prime after shut down, meaning the fuel is draining back into the fuel tank from the fuel lines or injection pump. That leaves air in the system until it has run a bit and purged the air.

It may have glow plugs that have or are failing. After warm-up they are no longer needed and/or cycle off after a minute or 2 of running.

Check the glow plugs, replace the fuel filters, add a check valve in the return fuel lines and see it that makes a difference. You may also add a check valve in the supply line, just be sure it is installed in the correct position to allow fuel into the fuel pump. Service the air intake system- if a paper filter replace it, if oil bath clean it and add new oil, but do not over fill as the engine will pick it up in the air stream and can run away uncontollable until it runs out the excess oil.

Faulty injectors do not correct themselves, they cause damage to the engine that if unchecked will become a major failure. Usually they will cause black or white smoke depending on the type or severity of the malfunction. You can check injectors out by shorting the injectors one at a time until you locate the misfiring injector. You do that by loosening the fuel line at each injector (be careful of hi-pressure fuel) one at a time. Messy but effective.

***Diesels require fuel, air and compression to operate. Low compression makes white smoke, over fueling makes black smoke, burning oil makes blue smoke.

Good luck. Oh, it also helps to have the make model and year of any vehicle you need assistance with.

Answer 4

More than likely the pumps going unless someone monkeyed with it and has it out of time. You didn't give much info and there's a million varieties of tractors and engines so this would be my first guess! Dirty fuel or water in the fuel can also cause this symptom- geled fuel in the winter. Definitely sounds like a fuel problem.

Answer 5

It could be that the fuel injectors are plugged or there is build up on the valves dropping how much compression you have.
Diesel motors run because of three parts.
Fuel Air mixture. fuel injector clogged?
Compression. If valves don't seal then you will have less power
Explosion. low air fuel or compression will provide less

One other thing can drop power air or exhaust plug. check your filters.

Answer 6

if it runs but no power, most likley its the fuel filter,and air filter need to be changed, when you change fuel filter, fill it with diesel fuel before putting it on. that way you wont get air into system.

Answer 7

Fuel injectors or fuel filter stopped up.

Answer 8

check your fuel to make sure there is no water in the diesel fuel.

Answer 9

power

Answer 10

Maybe it has no power.