4-175 cummins

kb88

Member
Seriously thinking about a 5.9 cummins in my 4-175. I need to know the best way to go with flywheel housing and input shaft and pro. Let me know what you guys think. I like the tractor just not real impressed with the cat. I have cummins powered tractors and I really like how they pull.
 
That's a small engine for that size of tractor. Why not an 8.3? I have had 5.9's and 8.3's and the 5.9 never impressed me that much.
 
I agree that the 5.9 is too small for that tractor. The only way I would do that is just for the novelty aspect.
 

Id go with the 5.9 over the 8.3 because you have a better chance of tearing the differentials and final drives up because there smaller than a 4-210. I'd go bout 200-210 engine hp and that's it
 
AT 180hp, you'll be able to get the desired top end horsepower, but the 5.9 just doesn't have the lungs to lug like an 8.3 or even the cat. If you look at the nebraska tractor test results for a 4-175, that cat had a 35% torque rise down to 1000rpm. If you look at the test results for a white 145, the 5.9L in those managed a 27% torque rise down to about 1600, then fell on it's face. Now, you can mess around with turbine housings to get more low end boost, but how much messing around do you want to do to get what you want?

If I were you, step one would be to dyno what it and confirm it's healthy. If it's not, you might be money and more importantly time ahead to get the Cat back to full strength and go from there. You may also want to go over to agtalk and ask some of the cat mechanics what can be done to wake it up. There's a ton of knowledge over there and their advice could save you considerable time and money.
 
The cat I have now is really lazy. Runs 2600 until you put any one of load on it then it's 2200. Is there any kind of governor adjustment? Seems like its always lugging.
 
Sounds like you have an rpm issue of some kind.
2600 is rated rpm (according to Nebraska test) At high idle (not sure what manual says) I would think you should be at 2800 at least.
Seen a lot of 2-180's have high idle with no load at 3000 or 3200. 3208 needs/likes rpm. if you can adjust it up there to the 3000 range I would think you'll see a big difference. Look in operator's manual and see what spec is for high idle.
 
Most of our olivers / whites with cats in run about 2400 under load. I wouldn't run them all day much over this for longevity. Does the tractor start up OK and run normal otherwise. The injection pump sits full of fuel and the plungers get all gunked up from this great fuel we have nowadays and even worse if they set without being run. The governor could be lazy due to the plungers in the pump being gunked up, or the governor spring could be weak. No load RPM should be around 2800-3000 rpm and loaded should be 2500-2650. So, the high idle adjustment cover might need to be removed on this 35+ year old tractor and readjusted, but make sure your throttle linkage is pulling the pump lever to breakover. Curious what you are pulling or doing that you need the RPM's much higher. Our 3208 always pulled good with a 28 foot disc on our 4-150. If you need a little more fuel, pull the cover in front of the high idle cover and turn the screw out about 1 turn. You can make a little over 210hp without much smoke. On a side note have you checked your air filters recently? I gained a whole gear the one year when a mouse built a nest in it.
 
It runs great always starts good with no blue smoke. It has a reman engine in it but I'm not sure how many hours are on it was in it when I bought it. Im thinking that maybe that it isn't getting enough fuel. I'm pulling a 26' field cultivator. I would like it better if I didn't have to run it 2600 to get the job done.
 
What do the tags say for hp or engine reman #. I can get about any info you need. We normally run the engine on the 4-150 @ 2400 pulling a 28 foot disc. Fuel pressure in the injection pump should be around 30 psi under load if I remember correctly. Factory may have set the pump wrong. Things like this do happen.
 
I'd give it a little more fuel like 3/4 - 1 1/2 turns on the fuel screw. Also make high idle rpm close to 3000. A 3208 if I remember right is under 500ft/lbs of torque at a 210 hp engine. It is possible that the wrong governor spring is in the pump allowing too much droop like an automotive application. Do you have any reman #s off the pump tag or engine so I can compare governor springs to an engine like in my 2-180 or our 4-150.
 

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