[C320-list] knot meter

[Rod Boer]

Hi Jim,

I have hull number 688 and mine has been acting up all summer.  Sometimes it
works, sometimes it works half speed, and now it isn't working at all.  I
assumed it was the electronics and I was going to check it out but I had my
wife spin the paddle wheel when it was removed and it I easily got a reading
on the gauge.  I am thinking that it might have something to do with the
rubber flapper that I am told is in the transducer hole to prevent water
from coming in when switching between the transducer and the plug, which I
do twice every weekend.  The only other thing I can think of is if there was
be a build up of barnacles on the hole in front of the paddle wheel but that
seems unlikely although the C320 next me had a 5" buildup on a portion of
the bottom of the keel that was not painted this spring.

Rod  

-----Original Message-----
From: c320-list-bounces at lists.catalina320.com
[mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of jim pasley
Sent: Sunday, October 05, 2008 8:08 AM
To: c320-list at lists.catalina320.com
Subject: [C320-list] knot meter

The knot meter has quit working on my boat. She's a 2000 C320, hull 691. I
have the standard factory installed Nav Pod and everything else is working
fine. The unit still works in all other functions, (timer, etc) and the knot
speed lights up, but only reads 0.00. I imagine the problem is not in the
electronics, but rather whatever contraption measures the water passing
under the hull. Could someone tell me where it might be and how one would go
about checking and cleaning it? Thanks.

Thanks.
Jim
Dream Weaver #691