IP Full Load Adjustment Procedure for the MW and M pumps
IP Full Load Adjustment Procedure for the MW and M pumps
First of all I have to say, these mechanical pumps are a nightmare to tune compared to the electronic pumps. On those, you just write a new set of chips in a couple of minutes and you get exactly what you mapped...
A friend of mine managed to blow a rod out the side of his 350SD w140 engine block last year. So he purchased a 500€ E300Turbodiesel w210 and I put that engine into his 140. It is kind of a quick-n-dirty installation, but is working very nice so far. Turbo was equipped with a pressure actuator and injection pump came off the 350. When I swapped the ip in, I kind of "blindly" turned out both the coarse-idle and the full-load screws by three full turns. That was quite a lucky shot, engine idles nice at 500 rpm without elr-magnet, starts up on the first stroke and has a lot of torque from the start (tires spinning easily without using the brake pedal).
However, compared to my project-om605-124 this engine seems pretty tired at higher revs (it will rev to 5600rpm) and it feels pretty weak at 100kph/60mph. It will not produce any smoke under boost, which is set to 1bar, but a lot without boost.
So today I thought I give it a shot. Unmounted the elr magnet and the back cover (what a hassle, couldnt unmount the cruise control actuator). Turned out the full load screw by another 2 turns, but the cover wont fit anymore. So turned the screw another 0.75 turns in, installed the cover. Tried to turn the coarse idle screw out by 1.25 turns, but was at the end of the thread after only a few degrees. Reinstalled the magnet, started the engine, idles nicely. Reved up, but it took the engine a full minute to come down to idle again. Hate. Unmounted everything again, and turned the full load screw it by bit in. Now it will rev down to idle a bit slow, but ok. Turned out the alda 2 turns which led to a lot of smoke off boost. But still not happy with the power output of this engine. Yes, throttle linkage reaches both idle and full load positions.
So this is pretty much the maximum I can fet from the ip? Or should I try the torque control, too?