Turning a 4bt up

SSpeeDEMONSS

SSpeeDEMONSS

Still Learning
It is in a gradall construction forklift. I have pics of the injection pump and wondering if I can turn it up a little.

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I have the same material handler! Good luck


Sent from my iPhone using Tapatalk while pulling a 36ft gooseneck and not paying attention to the road.
 
Fuel screw is sort of right above the pump solenoid, sticking out of the back of the top cover. Same as 1st gen dodge trucks. Remove the seal, loosen the jam nut, turn the screw in 1/2 to 1 turn, readjust idle speed and high rpm speed. Easiest to see in the 3rd picture.
 
Ok, ill try to circle the adjustments I see and if you can please tell me which each is.

Garrett

Probably getting paid at work to post this from my D1
 
3rd pic, right below where the fuel return line makes the bends to be closer to the head, is the full power screw.
 
this one? only 1/2 to 1 turn in?

4bt%252520pump.jpg



Garrett
 
also, i assume the idle screw is right above it in the pic, but which is the high speed screw? the other one on the left?

Garrett
 
They can run away if turned up too far, yes. Also remember that the HP rating in equipment is usually set so that you don't break parts...
 
I would go 1 turn and see what happens.
Interesting to see a non-aneroid pump on a turbo engine. It should be quite snappy!
 
Not trying to make huge power. I just want a little more.

Garrett

Probably getting paid at work to post this from my D1
 
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