mundamanu
Silver Member
I used my new old tractor (Allis Chalmers 160) this weekend to mow the pastures and the first thing that I noticed is that even with the throttle wide open, the RPMs would barely get above 2000, whereas the PTO-speed is marked at 2200 and the max RPMs are at 2700 (maybe 2500).
Going downhill the RPMs would bump up to PTO speed, but on the flats and uphill grades, the RPMs would drop to around 1800-2000, especially in 3rd gear, but also in 2nd and 1st.
The other thing that I noticed was that going uphill, there would occassionally be a loud quick "pop pop" sound.
I don't know if I have provided enough information, but anybody have any guesses why this might be so?
Going downhill the RPMs would bump up to PTO speed, but on the flats and uphill grades, the RPMs would drop to around 1800-2000, especially in 3rd gear, but also in 2nd and 1st.
The other thing that I noticed was that going uphill, there would occassionally be a loud quick "pop pop" sound.
I don't know if I have provided enough information, but anybody have any guesses why this might be so?