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Jim Kelly
 
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Default B-W Velvet Drive clunking

Yes, the transmission is bolted to a bell housing on the engine so that it
sits at the same angle as the engine. The prop shaft also assumes this angle
since it is direct coupled to the transmission. This is what is referred to
as a "straight inboard". On many newer boats of this size, the engine is
mounted backward with the front of the engine close to the transom. A V-drive
is then used to connect the engine to the prop shaft. On this type of
installation, the engine is not angled as in the straight application since
the prop shaft angle is accommodated by the angled "V" drive design.

Short Wave Sportfishing wrote:

On Sat, 14 Feb 2004 20:05:57 GMT, Jim Kelly wrote:

The transmission is direct coupled to the prop shaft. The prop shaft is
supported on the other end by a cutlass bearing that employs a rubber
insert. Although the rubber insert will absorb some vibration and very
minor misalignment, it is important to verify alignment at the coupling
on the transmission. This is done by taking out the bolts holding the
two coupling halves together, separating the halves slightly and checking
alignment with a feeler gauge. This must be done with the boat in the
water.


Ah - makes sense. So the whole drive train, engine/tranny/shaft/prop
are at some sort of angle then?

Later,

Tom
S. Woodstock, CT
----------

"Fisherman are born honest, but they get
over it." - Ed Zern


 
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