engine mount rubber grommets, good or bad?

[IHcubguy]

i got it to quit the vibration sound, thats all i was worried about 1/8" that not awhole lot, you'd think by the time you bolt the engine down tight, it would'nt matter much because you'd have it smashed down to ...1/64", I was told also that i could've use thin rubber and glue it to the floor pan to dampen it!

 

[brendonv]

The only thing that shakes on mine is my floorpan. I should probably shove a bit of rubber in between it and the frame to stop it from vibrating.

 

[modelengineer]

Put some silicon where the floorpan attaches to the frame. Removes ALL vibration noise.

You put the silicon on the floorpan, wait until it's partly set. Then clamp it to the frame for a bit, to get the shape, then take it off and let it set. Then when you bolt it back together it will seal and stop the vibrations.

 

[residentg]

...you don't see rubber mounted motorcycle engines, they mount everything on rubber...

Harley Davidon Dynaglides have rubber mounted engines, I think that the new Sportsters do as well. Softail engines are not rubber mounted, and they use a balanced version of the Twin-cam engine (Twin-cam 88b for example)

 

[brendonv]

Put some silicon where the floorpan attaches to the frame. Removes ALL vibration noise.

You put the silicon on the floorpan, wait until it's partly set. Then clamp it to the frame for a bit, to get the shape, then take it off and let it set. Then when you bolt it back together it will seal and stop the vibrations.

Good idea XD thnx.

 

[Rickracer]

I don't generally think of Harleys as motorcycles, , but I guess some are mounted in rubber. My point was that, as a rule, kart size stuff can't afford the movement that rubber mounting allows.