Shudder in the drivetrain after starting

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Jul 8, 2005
522
Jeanneau 389 Grosse Pointe Farms, MI
Our 321 Oceanis (2000 model) has about 80 hours on the engine. Right after we start it, there is a slight shudder coming somewhere in the drivetrain. Lasts a fraction of a second and is not heard when motoring. Any suggestions?
 
Jan 18, 2004
221
Beneteau 321 Houston
Start up Vibration

You did not mention which engine you have, but my guess is that you have the beginnings of a motor mount problem. This is common on the Perkins and Volvo engines. Not normally a problem with the Yanmar. Jon
 
Jul 8, 2005
522
Jeanneau 389 Grosse Pointe Farms, MI
start up vibration

It is a Yanmar. I will check the engine mounts since I did align the engine this Spring since was not well lined up with the output shaft. I didn't think it was this since the sound went away after the engine started. Thanks!
 
Jun 16, 2005
476
- - long beach, CA
shudder

cymeyer; I think your idle speed might be slightly low. I had a vibration/shifting problem in my Perkins but when I increased Idle speed about 100 RPM, it went away.
 
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