Thread Tools Search this Thread
Old 21 August 2009, 10:25   #11
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
Originally Posted by Polwart View Post
the yam gauge is measuring speed through the water (probably as estimated from the vacuum generated by dragging a tube through the water)
Actually, I think it's pressure generated by having the open end of the tube facing forwards. The opening is usually on the leading edge of the lower unit; you can find it by running a fingernail up the front edge. May be somewhat clogged as well, which will add to the discrepancy between analog and electronic meters. [Note: If the tube falls off the guage, you get water spraying around inside the console. Make sure it's firmly affixed if you like your console dry.]

There are also aftermarket pitot speed guages; they usually have a triangular plastic pickup mounted on the transom.


jyasaki is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 08:11.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.