Combines Wastegate Turbo on R 62

G'Day silverluv I would get a 0 to 30 psi boost gauge from your local automotive shop and install it in to the the either port on the side of the engine! (only if you don't use the either starting aid!!!!!) run the line down the right hand side of the machine were all the other pipes and electrical bit go and you can then install the gauge up on a bracket just in front of the pacer indicator. Now on my 94 R62 with 8.3 260 hp @ 2280 rpms I get around 25+ psi under full load, It seems I can run at that all day!!!! this system will help after you have some time up running with it in trouble shooting engine symptoms!!!! I would run it straight after you have installed it then put clean fuel filter on the run again then clean or replace the air filter and run again in similar condition's and see what happensIJ all so get a pressure washer out one night after some work and give the radiator a good soaking at low pressure, then next morning get stuck into it and give it a good clean! the presoak with help in soften crud up over night and make it easier to clean away next morning. Have fun!!!!! (you can tell that I must be an expert! as Im writhing to someone more that 30 miles from my home!!!!) Rolf

the N series had a boost gauge from factory. Our 96 R62 had a problem with the wast gate since it was new. Going from an N5 to an R62 we didn't know what we were missing. Now a boost gauge is the first thing that goes on a new combine. It is also helpfull knowing how hard you are pushing youre machine.

I have a 98 R62 with the waste gate froze shut. I went two turns on the fuel screw. It runs on the top side of the green, but the radiator has to be really plugged up to get in the red. In comparison, my R72 with the M11 has way more power and barely gets into the green even on the hottest days.

Only if the gate was stuck OPEN would it run hot. The waste gate is there to provice higher boost levels at lower RPM with out over boosting at full load. The gate stuck open will result in lots of black smoke at less than full load. Rare problem. One should never do this keeping safety in mind but if one could ride back there the rod from the pressure can will actually be seen working under load.

All 80's Gleaners had boost guages, even the l's Anyone know why they would delete thisIJ Next time anyone sees a rep. lets give them heck.

Yes n1 $, n2 waste gates. With a waste gate one would see the presure go to say 25n and stay there through the power band till it dropped off way below the undesirable lugging point at too low an rpm. With the new electronic govs. the Rpm stays at the rated load, any drop below this is lugging. I would like to say I would like the old system of snappy govs that were on the R62s just prior to the electronic engs but I have to stop living in the old days. I am beginning to sound like my old dad did when I promised I would never do this. - circle of life huhIJ

Intake manifold air pressure has to go threw orfice to get out to fuel pump aneroid and wastegate control. If wastegate control had leaking diaphram the pressure would be down so much to aneroid that you would have low power. With wastegate system adjusted properly you would still have decent boost with the low power. With the low power you would be very unlikely overheat. Then of course if it was opening before you developed good boost or was stuck open you would be smoking and some lack of power. Cummins is quite particular when adjusting it. I believe they call for 20 PSI supply to control which should swing the lever .060". If you think she's sick you should have wastegate checked when pump is pulled for a good tuning. A sick lugging engine could have a tendency of running warmer. Good luck

you can get the sensitivity of the electronic govenor adjusted... if i remember correctly its called droop. its adjustable depending on the application of the engine... in trucks the droop is set higher to give a little "feel" to the pedal... kinda undesirable in farm equipment, Ed

looking at some specs for C series Cummins it looks more like Actuator should move .010 to .050 at 29PSI when setting it. Another place says a quick check should open wastegate .100 at 26PSI. I think the main thing they want is to be sure it opens wide before 30PSI. It starts opening very fast when approching 30PSI when raising the pressure. Good luck

I had problems with the wastegate on my 98 C62 last fall (Dan helped diagnose the prob). Only sympton was loss of power (no overheating) and from what I can tell the loss of power had nothing to do with the wastegate not operating..the hole in the diaphragm was causing a loss of vacuum to the line that also goes to the aneroid in the fuel pump so the engine was starving for fuel when it needed it. Expensive little part the wastegate controller was something like $300 cdn from Cummins