PerfectPass speedo not working...

[FacePlant]

Hey all, first post and I'm sorry it has to be an annoying question. I have a 2005 22V and my PerfectPass speedo recently stopped working (stays @ 0mph), which obviously renders PP useless. Does anyone know where the PP gets its speedometer input from? It reads at least 5-8mph slower than my analog guage so I assume they arre using different sensors/senders.

[dogbert]

There's a thru hull fitting with a paddle wheel in it. It will be mounted near your V-Drive on the right side. It's possible to damage the paddle wheel by hitting it on a trailer or lift bunk if you're not careful. Otherwise, it could be the computer module on the PP.

[FacePlant]

There's a thru hull fitting with a paddle wheel in it. It will be mounted near your V-Drive on the right side. It's possible to damage the paddle wheel by hitting it on a trailer or lift bunk if you're not careful. Otherwise, it could be the computer module on the PP.

Thank you sir. So the paddle wheel can be checked visably from the bottom of the hull?

[da.bell]

Yes it can. You can even spin it if it's there still and hasn't come off somehow.

[FacePlant]

Awesome. I'm glad I found this site already.....

[R&T Babich]

If you need a new paddlewheel kit here's what you get. The paddlewheel is an Airmar ST300 speed-temperature thru-hull sensor: http://www.airmar.com/pdfs/install/17_274-01_r02.pdf
You can get the repair kit from various suppliers. I carry a spare kit.
If you turn the system on and spin the paddlewheel you can get it up to 5-8 mph to see if it's working.