Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-22-2019, 01:48 PM   #1
Ensign
 
Join Date: Feb 2019
Posts: 6
Default Electric draw

Hi all, first time boat owner, it's a 2003 2100sr.
It was sitting for a while, there is an electric draw and was trying to figure it out , does anyone has a wiring schematics for this boat, that will help.
Thanks Andy
__________________

Andyocala is offline   Reply With Quote
Old 02-22-2019, 04:23 PM   #2
Moderator

 
shrew's Avatar
 
Join Date: Apr 2008
Posts: 5,675
Default

Is there a battery charger? Is it running while the boat is sitting? Do you have flooded batteries? FLA batteries lose charge over time.

Check your bilge pumps as well. If they are electronic 'auto-sensing' they will need to power on every minute or so to check for water. That is the most common culprit. Is the memory for the stereo hard-wired to the battery? Are there any other devices hard-wired to the battery that doesn't have a dedicated switch? Some items have small amounts of draw, even when off.
__________________

shrew is offline   Reply With Quote
Old 02-22-2019, 04:46 PM   #3
Captain
 
jrsick's Avatar
 
Join Date: Oct 2011
Location: Chesapeake, VA
Posts: 556
Default

There are manuals for each engine in the documents section.
Most likely there have been additions and modifications to your electrical system over time. First indication of additions is wires connected directly to your battery terminals. I would check the unknown wires for parasitic draw first.
Your fuse panel is going to be under helm, somewhere near the steering wheel.
jrsick is offline   Reply With Quote
Old 02-22-2019, 06:01 PM   #4
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,587
Default

I would use a current meter then remove one fuse at a time until the current draw goes away. Now you know the source.
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2

Mike
mmwjr is offline   Reply With Quote
Old 02-22-2019, 11:20 PM   #5
Ensign
 
Join Date: Feb 2019
Posts: 6
Default

Thanks for all the info. I was feeling like a kid with a new toy but now I'm feeling like a kid with a shitty diaper. But I'll get thru it .
I'm seeing a few wires pulled out behind the guages can anyone send me a pic of there wiring being the guages or how to figure out what goes where. Thanks
Andyocala is offline   Reply With Quote
Old 02-23-2019, 12:08 AM   #6
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,587
Default

Quote:
Originally Posted by Andyocala View Post
Thanks for all the info. I was feeling like a kid with a new toy but now I'm feeling like a kid with a shitty diaper. But I'll get thru it .
I'm seeing a few wires pulled out behind the guages can anyone send me a pic of there wiring being the guages or how to figure out what goes where. Thanks
It would be easier if you post a picture of your wiring
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2

Mike
mmwjr is offline   Reply With Quote
Old 02-23-2019, 12:12 AM   #7
Ensign
 
Join Date: Feb 2019
Posts: 6
Default

Ok, new to the site , will figure out how to upload the pic
Andyocala is offline   Reply With Quote
Old 02-23-2019, 12:15 AM   #8
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,587
Default

Use the paper clip to upload
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2

Mike
mmwjr is offline   Reply With Quote
Old 02-23-2019, 12:18 AM   #9
Ensign
 
Join Date: Feb 2019
Posts: 6
Default

How stupid am I, lol , I'll take some pics in morning
Thanks again
Andyocala is offline   Reply With Quote
Old 02-24-2019, 09:56 PM   #10
Ensign
 
Join Date: Feb 2019
Posts: 6
Default

There should be couple pics of the back of guages Click image for larger version

Name:	20190223_123617.jpg
Views:	12
Size:	244.6 KB
ID:	5731

Click image for larger version

Name:	20190223_123231.jpg
Views:	8
Size:	279.1 KB
ID:	5732

Click image for larger version

Name:	20190223_123201.jpg
Views:	7
Size:	246.4 KB
ID:	5733
Andyocala is offline   Reply With Quote
Old 02-24-2019, 10:13 PM   #11
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,587
Default

The yellow wire are negativesand might be spares in the harness. Is anything not working on the gauges?
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2

Mike
mmwjr is offline   Reply With Quote
Old 02-24-2019, 10:34 PM   #12
Ensign
 
Join Date: Feb 2019
Posts: 6
Default

No yellow wire is out it's wire # 7, 8 and 4
I think like 2 guages not working , the tac and oil gauge
Andyocala is offline   Reply With Quote
Old 02-25-2019, 12:02 AM   #13
Captain
 
jrsick's Avatar
 
Join Date: Oct 2011
Location: Chesapeake, VA
Posts: 556
Default

For the tach, the three wire harness will pull straight off. I recommend pulling the harness off, then checking the dial setting to ensure it is correct for your engine.
Wire-brush the terminals to clean them, put some dielectric grease on the terminals, then push the harness back on.
For oil pressure, can you locate the oil pressure sender on the engine? I believe there is a single purple wire connected to it via a push on harness.
Do you have a multimeter and a jumper wire? Also, have you downloaded the service manual for your engine?
jrsick is offline   Reply With Quote
Old 02-25-2019, 02:39 AM   #14
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,587
Default

The large gauge on the right in the picture looks to be the speedometer as the center is the air tube. This is also where the wires appear to be disconnected. Are there gauges with exposed terminals where the wires could go? If so post a close up of them.
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2

Mike
mmwjr is offline   Reply With Quote
Old 02-25-2019, 04:16 AM   #15
Commander
 
Join Date: Jan 2014
Posts: 251
Default

Quote:
Originally Posted by mmwjr View Post
I would use a current meter then remove one fuse at a time until the current draw goes away. Now you know the source.
This is the best advise on pin pointing a parasitic draw.
Baby Blue is offline   Reply With Quote
Old 02-25-2019, 12:12 PM   #16
Captain
 
jrsick's Avatar
 
Join Date: Oct 2011
Location: Chesapeake, VA
Posts: 556
Default

Quote:
Originally Posted by Baby Blue View Post
This is the best advise on pin pointing a parasitic draw.
Yes, and you can speed this up by checking for current draw on the fuses and only pulling the ones that show a draw.
Set your multimeter on a low DC setting (i.e. 150mv) and touch a lead to each probe point on a fuse. The meter will initially register a voltage, then will go to zero if there is no current on the fuse. If the meter registers a value after it has settled then there is current going over that fuse. No need to pull a fuse with zero current.
All fuses have probe points in the back. These are the small metal slits on each side of the fuse.
Make sure your battery is charged to at least 12.6V to get a good test.
You may have a higher end autoranging meter. Just set these to DC.
jrsick is offline   Reply With Quote
Old 02-25-2019, 12:41 PM   #17
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,587
Default

Quote:
Originally Posted by Andyocala View Post
No yellow wire is out it's wire # 7, 8 and 4
I think like 2 guages not working , the tac and oil gauge
Looking today on my PC instead of my iPad the # 7 and 8 wires look like the power for the speedometer light. #8 should be 12V and #7 (yellow) return. There are two blade terminals on the back of the speedometer on either side of the bulb socket.
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2

Mike
mmwjr is offline   Reply With Quote
Old 02-25-2019, 12:43 PM   #18
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,587
Default

Quote:
Originally Posted by jrsick View Post
For the tach, the three wire harness will pull straight off. I recommend pulling the harness off, then checking the dial setting to ensure it is correct for your engine.
Wire-brush the terminals to clean them, put some dielectric grease on the terminals, then push the harness back on.
For oil pressure, can you locate the oil pressure sender on the engine? I believe there is a single purple wire connected to it via a push on harness.
Do you have a multimeter and a jumper wire? Also, have you downloaded the service manual for your engine?
I agree with jr the tach is know for corrosion on its terminals or the select switch causing issues.
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2

Mike
mmwjr is offline   Reply With Quote
Old 02-25-2019, 02:28 PM   #19
Moderator

 
shrew's Avatar
 
Join Date: Apr 2008
Posts: 5,675
Default

Ugg. Someone went to Home Depot, then did a bunch of really bad DIY on your electrical system. You can tell by the blue blade connectors. Those are not from factory. They're not bad, just evidence that someone has been there doing extensive work.

Those twist connectors need to go immediately. That is not to ABYC code at all. You should be using inline crimp connectors to but 12v wires together. I prefer shrink connectors properly crimped.
shrew is offline   Reply With Quote
Old 02-25-2019, 11:24 PM   #20
Lt. Commander
 
gmc60's Avatar
 
Join Date: Dec 2014
Location: Mass
Posts: 232
Default

Maybe if you have a mercath sys they draw rite off the batt
__________________

gmc60 is offline   Reply With Quote
Reply


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


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 11:21 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.