My Case 1150 dozer began to smother down, then regain rpms. It would level out and then smother down again. Needless to say, it had no power when trying to push. I changed fuel filters. It cranked. Ran a minute and died. Will crank on ether but dies when it burns it up. I tried bleeding the injector lines, but I am getting no diesel from any of them. I AM getting diesel from the filters to the pump. HAS MY INJECTOR PUMP GONE BAD? The engine is either a 401 or 451. I cant find any number plate. (where should it be located?)It is not turbo charged. The dozer(and engine)was built in 1968. The engine is the style that came in 1270 and 1370 Case tractors.
- Thread starter mb58
- Start date
rustred
Well-known Member
now why would you dump dirty unfiltered fuel in a clean filter? thats the whole idea of using the pump or gravity to fill them. so the fuel runs through the filter before going into injectors. see so many people do this. injectors and pump have very close tolerances and unfiltered fuel is dirty.
You do this using fuel that is as clean as possible. You have to do it because the majority of equipment has neither the gravity flow system to fill the filters, nor the ability for the transfer pump to do so before you burn up a battery.
That said, trying to fill them by turning the engine over, in many cases, results in the engine firing off and running until the air bubble in the system causes it to run out of fuel. The result of that is now you have to get the air bled out of the system, and you also now have to bleed the injectors. Even worse are those engines where the injectors aren't accessible, thus causing even more problems getting it going again after it runs out of fuel.
In any case, the only folks I know who don't recommend filling a fuel filter are those engineers that have never spent 30 minutes trying to get an engine running again after it ran out of fuel. Again, if you use fuel out of a dirty bucket, then you MIGHT have a problem, but keep your containers clean, and the chances of a problem like your describing are very slim to none.
That said, trying to fill them by turning the engine over, in many cases, results in the engine firing off and running until the air bubble in the system causes it to run out of fuel. The result of that is now you have to get the air bled out of the system, and you also now have to bleed the injectors. Even worse are those engines where the injectors aren't accessible, thus causing even more problems getting it going again after it runs out of fuel.
In any case, the only folks I know who don't recommend filling a fuel filter are those engineers that have never spent 30 minutes trying to get an engine running again after it ran out of fuel. Again, if you use fuel out of a dirty bucket, then you MIGHT have a problem, but keep your containers clean, and the chances of a problem like your describing are very slim to none.
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