BoatBanter.com - View Single Post - Bad U-Joints?!

On Fri, 30 Jul 2004 12:42:21 -0400, (Sonny H)
wrote:

I have a '93 4.3 Alfa one.

When motor is idling I hear a "roar" no clicking, or knocking. could
this be the universal joints going bad?
comments/opinion?

Is the drive tilted down or up? Is it straight ahead or to one side or
the other? If the drive is tilted up, you will get some sort of
chatter. If the noise increases significantly when the drive is turned
to either side, the U-Joints may be wearing out.

A constant groaning or roaring noise when the drive is level and
straight is more likely to be the gimbal bearing. Try shooting some
lube into the zerk fitting on the lower right side of the drive's
transom plate while the engine is running and see if it "quiets" the
noise. If it does, then you should probably consider bearing
replacement.

Dave