R
richard macny
Guest
" Hi there,
I have a 3hm engi
" Hi there,
I have a 3hm engine in a 31 ft steel yacht.
At approx 1000 rpm it develops quite a bad "harmonic" vibration. It runs very well, starts easily etc, and idles smoothly. At approx 1400 rpm the vibration completely clears up, and the engine runs smooth again. The engine mounts seem very soft, (although all appear to be in good condition),I was wondering if this could let the engine move more than it is supposed to?
Your advice would be great! "
I have a 3hm engi
" Hi there,
I have a 3hm engine in a 31 ft steel yacht.
At approx 1000 rpm it develops quite a bad "harmonic" vibration. It runs very well, starts easily etc, and idles smoothly. At approx 1400 rpm the vibration completely clears up, and the engine runs smooth again. The engine mounts seem very soft, (although all appear to be in good condition),I was wondering if this could let the engine move more than it is supposed to?
Your advice would be great! "