For more details visit IP Full Load Adjustment Procedure for the MW and M pumps

Disclaimer!
All information presented herein is purely for informational purposes only, I assume no liability for your or anyone else's actions. All procedures and adjustments in this guide are to be performed AT YOUR OWN RISK. The pump can only be properly calibrated by a Diesel injection specialist on an injection pump test bench, this is not intended as a DIY at home pump calibration guide. Getting your engine into good running condition and installing an exhaust temperature gauge (pyrometer) is STRONGLY recommended before you contemplate touching any injection pump internals. If you believe any of the following information to be incorrect please contact me through the forum PM system or at LNewcomb99@cox.net and it will be corrected asap.

No idle compensation is required unless noted.

External Idle Screw- Controls the fine idle speed.
*Set the engine between 700-800rpm.

ALDA- Limits fuel at low boost pressure to control black smoke.
*Loosen the 10mm locknut and adjust the screw CCW in 1/4 turn increments to increase low boost fuel until you see black smoke when the accelerator is floored from a standstill. This adjustment will NOT increase your maximum horsepower.

Throttle stop- Prevents the external linkage from forcing the internal linkage past set point.
*Do not touch but make sure your external linkage is contacting the stop at WOT.
**This adjustment will NOT increase your maximum power and can possibly cause internal linkage binding.

High Idle- Limits maximum engine RPM.
*This can effect the governing of idle RPM and idle quality.
**This should only be adjusted if your engine is in top-notch condition.
***Increasing maximum RPM comes with a serious risk of throwing a connecting rod and/or floating the valves resulting in catastrophic engine damage.

Full Load- Sets the maximum rack travel while the engine is running.
*19mm and 9mm locknuts must be loosened and the 13mm nut turned CW to increase maximum fuel quantity.
**The rack limiter lever can be completely removed from the pump for maximum power. See the removal guide HERE.

Idle Regulation Bumper Spring- Adds idle unloading spring force against the flyweights.
*Should not be adjusted.

Coarse Idle RPM Screw- Sets the idle speed in combination with the outer fine adjustment.
*Should not be adjusted except in conjunction with torque control capsule adjustment.

Start Quantity Cutout- Allows full fuel for start but not run.
*Also affects other internal functions. Do not touch.

Torque Control Capsule- Reduces rack travel with increased RPM.
*Reduces smoke at higher RPMs due to the engines lower volumetric efficiency at higher RPMs. Loosen 21mm lock ring and turn 14mm capsule CW to increase. Back out the coarse idle RPM screw by the same amount as you turned the capsule.
**A pyrometer is an absolute must if you are going to adjust this. Take it easy and only go 1/4 turn each time.
***Caution: Adjusting the capsule too much can result in the engine becoming slow to return to idle or not returning to idle at all.



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