Friday, June 12, 2020

Engine Mounts

I've learned a lot putting new engine mounts in Nellie.  One, it's not a hard job.  Two, selecting the proper engine mount is critical.  

Nellie's factory-original Cushyfloat mounts had no model number.

The first new set of mounts, Cushyfloat 17-1609-65's, were dramatically noiser than Nellie's factory-original Cushyfloat mounts.  I then removed the 65's and installed Cushyfloat 17-1608-45's.  The graph below compares the wheelhouse noise level with each mount type.

On average the 45's are more than 50% quieter (-12bB) than the 65's. 

Why?  Because as the graph above shows, they're better at dampening the engine's vibration. 

Bottom line, Nellie has never run quieter or smoother.

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