Outdrive torque...
 

On Sep 25, 7:23�am, Jim wrote:
Tom Francis - SWSports wrote:





I've already admitted that I don't have a lot of experience with
outdrives, but I ran into something this morning with the Pro Line
that was fixed that may, or may not, be imagination.

I took the boat up to Webster Lake this morning to run it up for a
prospective buyer. �Everything seems to work ok - boat is running
fine,nothing seems amiss, but I noticed something odd - or at least I
think it's odd.

When you cram the throttle for a hole shot, the boat rotates slightly
to starboard along it's bow/stern axis - almost like the torgue roll
you get with a high horsepower car. �At least it feels like that to me
- it's not a violent movement by any means, but it feels funky.

It that normal? �Just asking - I've never "felt" this before on other
outdrive boats I've tested or driven. �

It's called torque steer. In the olden days there was an fin anode above
the prop that could be adjusted to minimize that effect. More modern
setups use a flat plate anode in place of the fin. I couldn't tell you why.- Hide quoted text -

- Show quoted text -

Actually, outdrives still use the fin type annode if not equipped with
power steering. The fin was adjustable side to side to minimize the
boats tendency to follow the rotation of the prop...fighting that all
day is tiring. With power steering it isn't a factor.
Mike