Ground Issue
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=43071
Printed Date: November-15-2024 at 6:25pm
Topic: Ground Issue
Posted By: BeSquare
Subject: Ground Issue
Date Posted: July-01-2018 at 3:06pm
| Seeking ideas for common faults. Fuel gauge was fine then quit; oil pressure gauge runs high at 60 rather than 35-40 (warning light on); oil pressure pegs to right when nav light/dash lights turned on; no nav lights; and now voltmeter registering 10v instead of typical 13, with warning light. Seems to be a grounding issue but haven’t chased it down yet. Any mid-vacation pointers to maintain the family sanity? |
Replies:
Posted By: desertskier
Date Posted: July-01-2018 at 4:24pm
| What model and year? |
Posted By: gt40KS
Date Posted: July-01-2018 at 5:40pm
|
Have you verified the volts AT the battery with a VOM? I've had an internally shorted battery cause some really screwy stuff. Otherwise, I'd say check the usual fun stuff like main grounding points and cables not only secure, tight but also free of corrosion. If this only seems to be effecting the dash gauges, there may be a ground problem or short in the wiring harness leading to the area. ------------- JCCI 1995 Ski Nautique GT40 |
Posted By: andrewmarani
Date Posted: July-01-2018 at 7:07pm
|
Definitely need to know what model and year. Bad grounds are a known issue with older boats and a fairly straight forward fix. Most run a new ground and a new power line from the engine to the dash, you can look up posts on how to do it. The next step is to rewire the dash, more complicated but not really hard if you take your time and have the proper terminals and wire. Rewired my dash two years ago, picture below. It was simple to completely remove it from the boat and move it to the island in the kitchen to rewire for a couple of weeks during the winter. i upped the wire gauge one size and rewired the daisy chain system to solve some built in issues. Solved most of my electrical issues and now I know to look elsewhere whenever any electrical problems pop up. Once the dash was back in the boat, I ran a new ground from the black ground terminal block to the back of the engine and a new power wire from the red power terminal block to the solenoid. First picture shows the rewired dash. Second picture shows the new red power and black ground landing on the solenoid and the engine. you can see them zip tied together right side middle of the picture.    
------------- Builder |
Posted By: 8122pbrainard
Date Posted: July-01-2018 at 7:38pm
|
William, I too encourage you to do a wiring update just as Andrew did. Both the dash feed and dash ground are known problems. They are marginal in wire size and then with age and corrosion the problems show up just as you describe. If you proceed with the project I suggest spending the extra money on high grade marine wire that is tinned for corrosion protection. Then, go with the high grade crimp on connections that have the adhesive lined heat shrink insulation on them. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: 8122pbrainard
Date Posted: July-01-2018 at 8:58pm
|
William, I recently needed some marine wire for some nav lights and the best price I found was at http://www.bestboatwire.com/marine-wire" rel="nofollow - Best Boat Wire They also have the http://www.bestboatwire.com/marine-electrical-supply/wire-connectors/heat-shrink-terminals" rel="nofollow - adhesive lined heat shrink crimp on connections ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: andrewmarani
Date Posted: July-01-2018 at 10:28pm
|
That's a nice site. Would have saved me a lot of internet searching when i was buying wire and terminals for the boat. I recommend the below tool for doing crimps. You really can't crimp this stuff properly without a good crimping tool. The one below comes with six different heads, so far i've used three different heads on various electrical projects. Definitely one of my better tool buys. https://www.amazon.com/gp/product/B0045CUMLQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 ------------- Builder |
Posted By: 8122pbrainard
Date Posted: July-01-2018 at 10:32pm
https://www.amazon.com/gp/product/B0045CUMLQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1%20" rel="nofollow - Direct link ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
andrewmarani wrote: