hillberg
Super Member
Could the motor mounts be changing their derameter rating when hot?
Clamp that muther down!
Clamp that muther down!
Could the motor mounts be changing their derameter rating when hot?
Clamp that muther down!
Could the motor mounts be changing their derameter rating when hot?
Clamp that muther down!
Patience or Stupidity? Who knows !
50-50 :noidea::lol:
Are the main tranny mounts new.
wolfy
roller bearing freqs would be too high, but the engine vibes were changed with the mounts...
is the engine a larger horse power than original???
as an experiment can a spring be preloaded on the lower sheave mount to the frame?
#200 lbs spring scale to a turn buckle should do...vertically mounted pulling down on the assembly.
might detune the 'bounce' / have you used a strobe to 'look' at everything?
try the springs , the power pulse could be causing the toothed sheave on the engine to climb pulling the engine up off the mounts in time with each cylinder firing...
Do the foot pounds of torque produced by the engine come close to the engines moment or weight???
...causing the toothed sheave on the engine to climb pulling the engine up...