Thread Tools Search this Thread Display Modes
Old 05-30-2016, 03:34 PM   #1
Join Date: Dec 2011
Posts: 7

I have a 1982 Californian with Perkins engines. The Tach for the port engine on the fly bridge did not work the first time I took the boat out this season. It works on the lower station and there do not appear to be any loose connections.

Any suggestions?

gezellig is offline   Reply With Quote
Old 05-31-2016, 02:08 PM   #2
Veteran Member
WD40's Avatar
City: Mount Vernon, WA / La Conner, WA
Country: USA
Vessel Name: Otter
Vessel Model: 1985 President Sundeck 41
Join Date: Dec 2015
Posts: 78
Did you run the engine up anywhere near full throttle, even momentarily?
Neither of the tachs will work on Otter until I give the engines a good "goose" up to 1,500-1,800 rpm.
It has to do with the alternator turning over fast enough to put out enough voltage to run the tach.
From my limited experience, I understand it's relatively common.

WD40 is offline   Reply With Quote
Old 06-23-2016, 04:17 PM   #3
Join Date: Dec 2011
Posts: 7
Problem solved. It was a broken ground wire between the two tachs on the upper station. The ground is not show on the drawing, I noticed when I took them off to get at the back to remove the tach.
gezellig is offline   Reply With Quote
Old 06-25-2016, 08:37 PM   #4
High Wire's Avatar
City: Cape May, NJ and Englewood, FL
Country: USA
Vessel Name: Irish Lady
Join Date: Dec 2007
Posts: 2,791
Wow, a true easy fix!!! Savor the moment.
1984 Monk 36 Hull #46
Currently southbound in Chesapeake Bay
High Wire is online now   Reply With Quote
Old 11-19-2016, 08:30 PM   #5
Senior Member
Join Date: Nov 2011
Posts: 216
Also. Msny tachs that run off the alternator require a load on the electrical system to function. With fully charged batteries they may not ooerate when you stat up. Turn on some lights or a pump to get it to function.
MVDarlin is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

All times are GMT -5. The time now is 01:49 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012