sawtooth
Veteran Member
- Joined
- Sep 19, 2007
- Messages
- 1,192
- Location
- Eden NC
- Tractor
- Ford NAA, Ford 2810, Ford 3910-1, Ford 3910-2, Ford 4600SU, Massey 2660 HD, Massey 461, Grasshopper 725D, Grasshopper 900D
So my 4600 runs smooth except from 1600-1800 rpms. Anything above 1800 is fine also. Any idea what could cause a vibration in this 200 rpm range? Do these engines normally run this way. I know it's a 3 cylinder but the vibration is a little uncomfortable so I end up running below 1600 or above 1800 to bypass it. Any ideas?