"Inno" wrote in message
oups.com...


I can get an air pig to the boat. So there is hollow line from the
speedo to the pitot tube that needs blowing out? I detach at the
speedo gauge and blow from there? Don't want to wreck anything!


The tubing is not designed for high pressure. I would not use an air pig.
The pitot tube opening may be clogged up. It is a somewhat calibrated size,
so you don't want to change it's size or shape by forcing a drill or
something through it. Carefully clean the hole using a fine, flexible wire,

Eisboch