1HD-T Injection Pump Tuning Questions (1 Viewer)

[Coyomog]

I have installed a G-Turbo Grunter Extreme turbocharger and a 3" intercooler on my HDJ81 Land Cruiser. I have also modified the fuel pin profile and have set the aneroid click adjuster to the proper setting.

The G-Turbo instructions tell you to adjust the main fuel screw, but the drawing in their literature references the full-load adjusting screw. I assume that these are the same thing. The other thing is that the drawing is not very clear. Can anyone help me to understand exactly which screws are which so that I can have some level of confidence in tuning this thing?

Thanks in advance for your help.

 

[roscoFJ73]

YES and YES The main screw normally has lead seals like yours.

 

[Coyomog]

YES and YES The main screw normally has lead seals like yours.

Thanks! I just wanted to be sure before screwing with something that I should not screw with... No pun intended.

I made my adjustments during my lunch break today. I must say that I am a happy camper...It will not burn rubber, but a little chirp was heard!!!

 

[Jroc561]

Yeah you can see the lever the Idle screw touches.

The Main fuel screw is super sensitive 1/4 turn for me one way the truck barely accelerates, 1/4 turn the other its pretty smokey