Difference in m6040 and m7040?

[dirt clod]

Looks like both are built on same chassis and have same engine. The 6040 has about 64hp and m7040 about 71hp. Anyone know the difference is that adds the extra few hp?
Setting on injection pump or slightly larger injectors?

 

[5030]

You guessed correctly.

 

[JWR]

I suspect there are other differences like injection timing, fuel amounts metered electronically and controlled by the microprocessor chips. Those are the differences between my MF 2660 and the 2670 and 2680. Appears at first glance to only be HP. Same block, same model engine. However, the 2650 and 2660 share a slightly shorter frame while the longer framed 2670 snd 80 also have features like external hyd cyl for 3pt lift, etc. You may have those kinds of differences between 6040 and 7040, I don't know.

 

[Thunder chicken]

Check the Hyd pump flows, or power steering flows… one machine may be more/less than the other? The 8 speed vs 12 speed transmission may change that also…..

 

[5030]

Also keep in mind that no two tractors will pto dyno the same either. What a manufacturer says it has and what it really has are usually 2 different things

 

[dirt clod]

I suspect there are other differences like injection timing, fuel amounts metered electronically and controlled by the microprocessor chips. Those are the differences between my MF 2660 and the 2670 and 2680. Appears at first glance to only be HP. Same block, same model engine. However, the 2650 and 2660 share a slightly shorter frame while the longer framed 2670 snd 80 also have features like external hyd cyl for 3pt lift, etc. You may have those kinds of differences between 6040 and 7040, I don't know.

Wouldn't a 2008 be all mechanical injection system?

 

[5030]

Probably Tier 4 Interem IOW, maybe and maybe not depending on build date.

 

[big bubba]

7040 has limited slip ft differential, 6040 does not. same engine setup, different tuning

 

[5030]

Sure about that. All the Kubota's I've seen have at least locking rear differentials, not limited slip. Mine have both front and rear lockers.

 

[big bubba]

7040 on up to 9540 all have limited slip ft differential. all of them of course have locking rear