Maintenance - Electric wiring

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Electric wiring

Printed From: Laser 28 International Class Association
Category: Laser 28 General
Forum Name: Maintenance
Forum Description: All the things to care for your boat
URL: http://www.laser28.org/forum/forum_posts.asp?TID=835
Printed Date: 25 April 2024 at 3:53am
Software Version: Web Wiz Forums 11.03 - http://www.webwizforums.com

Topic: Electric wiring

Posted By: Eric Letellier
Subject: Electric wiring
Date Posted: 03 February 2020 at 10:56pm

I am doing a checkup of the entire electric system.
I am relying on the blueprint of pages 49 and 50 of the manual.

The one on page 50 is confusing, especially in describing the connections above the engine.

Did anyone come up with a better drawing, and would be ready to share?

Best

Eric

Replies:

Posted By: Bill Layton
Date Posted: 04 February 2020 at 7:53am

It's just a terminal block that feeds power and ground to the sternlight and dome light above the engine and to the head light on early boats. Most owners also used that terminal block to feed power the any instruments that got installed over the lifetime of the boat and for that reason can turn out to be a mess. The end result is that what is there now probably doesn't resemble the original wiring at all. All original wiring that was red is +12v and all black wires were ground. You will need to trace where all the wires go, to figure out what's what.

Posted By: Eric Letellier
Date Posted: 04 February 2020 at 4:03pm

Thank you Bill, you are absolutely right.

I went through my electric checkup and found out some discrepancies with the diagram, most probably inserted by one of the previous owners while installing the sound system.

Useful exercise, now I know what feeds what, and why some of the appliances weren't working.

I am replacing damaged or under-dimensioned cables for the proper gage, including the wiring in the mast, and everything lamp is replaced by LED ones.

Thank you

Posted By: Bill Layton
Date Posted: 04 February 2020 at 5:23pm

Be sure to use tin coated wires.. proper marine wire. Copper will corrode quickly. West marine has a good assortment

Posted By: Ron Waterson
Date Posted: 04 February 2020 at 9:43pm

Hey Bill,

As long as you are thinking about wiring, assuming you recall, how are the steaming and anchor light wired? I have never successfully had both lights working. I have a black, white and green three wire going up the mast. Is that the original wire? How should they be connected to the steaming and anchor light?

Thanks

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Hull 147 - Angel's Share

Posted By: Bill Layton
Date Posted: 05 February 2020 at 10:48am

The anchor light (masthead) is green

Steaming Light is white

Common is ground black