Reply
 
Thread Tools Display Modes
 
Old 01-18-2016, 10:42 PM   #1
Senior Member
 
Deano's Avatar
 
City: St. Pete
Country: USA
Vessel Name: Becca
Vessel Model: Gulfstar 44
Join Date: Nov 2013
Posts: 115
What is this???

It has wires from two different lugs on the alternator and a ground. Three connections total. No Name or numbers evident. Connected to 3208 Cats vintage 1987, one per each engine.
I have no clue. There are regulaters on each alternator. Not getting any charge past these things but the alternators are both putting out 14 volts. I would like to get rid of these corroded messes but have to cut wires to get them apart.
Any ideas?
Attached Thumbnails
Click image for larger version

Name:	Whats this.jpg
Views:	186
Size:	99.1 KB
ID:	48215  
__________________
Advertisement

Deano is offline   Reply With Quote
Old 01-19-2016, 12:15 AM   #2
Guru
 
koliver's Avatar
 
City: Saltspring Island
Country: BC, canada
Vessel Name: Retreat
Vessel Model: C&L 44
Join Date: Nov 2007
Posts: 2,166
Could it be a shunt? Connected to an ammeter that has since been removed?
__________________

koliver is offline   Reply With Quote
Old 01-19-2016, 08:06 AM   #3
Guru
 
O C Diver's Avatar
 
City: Fort Myers, FL... Summers in Crisfield, MD
Country: USA
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 4,810
I don't know, but wonder if it's used to absorb static noise generated by the alternator.

Ted
__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
O C Diver is offline   Reply With Quote
Old 01-19-2016, 10:56 AM   #4
Guru
 
Capt.Bill11's Avatar
 
City: Sarasota/Ft. Lauderdale
Country: USA
Join Date: Apr 2014
Posts: 5,422
Looks like a noise filter. Or some kind of diode perhaps.

A lot of that wire and those connections/splices need attention.
Capt.Bill11 is offline   Reply With Quote
Old 01-19-2016, 11:30 AM   #5
Senior Member
 
Deano's Avatar
 
City: St. Pete
Country: USA
Vessel Name: Becca
Vessel Model: Gulfstar 44
Join Date: Nov 2013
Posts: 115
The connections are beyond needing attention, replacement is in order but I don't know with what.
Deano is offline   Reply With Quote
Old 01-19-2016, 04:09 PM   #6
Guru
 
O C Diver's Avatar
 
City: Fort Myers, FL... Summers in Crisfield, MD
Country: USA
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 4,810
Quote:
Originally Posted by Deano View Post
The connections are beyond needing attention, replacement is in order but I don't know with what.
When all else fails, bypass the safeties, what's the worst that can happen.

Ted
__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
O C Diver is offline   Reply With Quote
Old 01-19-2016, 05:41 PM   #7
Guru
 
caltexflanc's Avatar
 
City: North Carolina for now
Country: USA
Vessel Name: Small Incentive
Vessel Model: Boston Whaler 130 Sport
Join Date: Aug 2011
Posts: 3,785
Whole heap of hurt in that picture even beyond the subject item. You gotta lotta work to do there boy!
__________________
George

"There's the Right Way, the Wrong Way, and what some guy says he's gotten away with"
caltexflanc is offline   Reply With Quote
Old 01-19-2016, 06:24 PM   #8
Guru
 
Alaskan Sea-Duction's Avatar
 
City: Inside Passage Summer/Columbia River Winter
Country: USA
Vessel Name: Alaskan Sea-Duction
Vessel Model: 1988 M/Y Camargue YachtFisher
Join Date: Jul 2012
Posts: 3,141
I have 1988 Cat 3208 T/A and I looked in my parts book and service manual. I could not find it. Try tracing the wires to their source. This will help you find the purpose of the part. I would probably agree it is noise suppressor. If I am looking at that picture we are looking at the port side of the motor, just behind the alternator.


The large wire appears to be the main alternator wire. One end should be on the starter, the other on the + terminal of the alternator. Then there should be a black and green wire going to the ground part of the alternator.


I would suggest you get a good mechanic to "reset" the wires back to the original hook ups.
__________________
1988 M/Y Camargue Yacht Fisher
Alaskan Sea-Duction
MMSI: 338131469
Blog: http://alaskanseaduction.blogspot.com/
Alaskan Sea-Duction is online now   Reply With Quote
Old 01-19-2016, 07:51 PM   #9
Senior Member
 
Deano's Avatar
 
City: St. Pete
Country: USA
Vessel Name: Becca
Vessel Model: Gulfstar 44
Join Date: Nov 2013
Posts: 115
Some where in there is the lead for the tachs. ASD You are correct on the direction of the wires. I have a marine electrician coming by to help with some other issues. Perhaps he will have some additional knowledge.
And caltexflanc, you haven't even seen 1% of the work ahead of me in that engine room.
Most everything runs and works well but it is not at all "ship shape".
Deano is offline   Reply With Quote
Old 01-19-2016, 07:55 PM   #10
Guru
 
dhmeissner's Avatar
 
City: Seattle
Country: North America
Vessel Name: The Promise
Vessel Model: Roughwater 35
Join Date: Sep 2012
Posts: 1,325
Looks to small to be a VR. Charlie Wings book is free to download somewhere. I think there is a link on this site if you search for it. There are others like the DC bible I think it's called.

Basic wiring:
Attached Thumbnails
Click image for larger version

Name:	image.jpg
Views:	71
Size:	109.9 KB
ID:	48237  
__________________
Dave & Suzie - Roughwater 35
http://thepromiserwb1029.org/2012/09...the-promise-2/
dhmeissner is offline   Reply With Quote
Old 01-19-2016, 08:12 PM   #11
Senior Member
 
Deano's Avatar
 
City: St. Pete
Country: USA
Vessel Name: Becca
Vessel Model: Gulfstar 44
Join Date: Nov 2013
Posts: 115
I have that book in the library here and never thought to consult it. That could just be it.
Thanks.
__________________

Deano is offline   Reply With Quote
Reply

Thread Tools
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 01:14 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012