Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 09-23-2016, 04:15 PM   #1
hoffernsp
Member
 
hoffernsp's Avatar
 
Join Date: May 2013
Location: MN
Posts: 68
Default 1951 Merc wiring sizes

I plan on wiring my 51 Merc from scratch. I have the wiring diagram but does now show wire sizes. Anyone have a table or reference for the individual component wire gauges?
hoffernsp is offline   Reply With Quote
Old 09-23-2016, 05:22 PM   #2
Drbrown
Senior Member
 
Drbrown's Avatar
 
Join Date: Oct 2013
Location: Glens Falls NY
Posts: 1,230
Default Re: 1951 Merc wiring sizes

I recently researched '41 thru '48 Ford manuals and service bulletins I have regarding OE wire gauges and colors and prepared the attached "Tabulation Wire Circuits." I note it pertains to 6 volt systems and that I found only a few contradictions in the publications. Forum member JSeery also has some data on this subject.

If you are going to operate a 6 volt system this data should help you. You may also wish to either simulate the OE wire colorings or try to find someone who reproduces the colors/combinations.
Attached Files
File Type: pdf TABULATION WIRE CIRCUITS.pdf (69.4 KB, 43 views)
Drbrown is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 09-23-2016, 05:29 PM   #3
JSeery
Senior Member
 
JSeery's Avatar
 
Join Date: Nov 2012
Location: Wichita KS
Posts: 13,412
Default Re: 1951 Merc wiring sizes

Yea, I can post the diagrams again.
Attached Images
File Type: jpg 48-49-lights-detail.jpg (64.5 KB, 25 views)
File Type: jpg 49-50 Charge System.jpg (21.5 KB, 18 views)
File Type: jpg 49-50 Dash Light Wiring.jpg (56.0 KB, 21 views)
File Type: jpg flathead-Ford-49-51-turnwireharness.jpg (74.4 KB, 22 views)
File Type: jpg ford-f100-pickup-truck-wiring-diagram-1953-1954-1955-1956.jpg (90.6 KB, 21 views)
File Type: jpg Complete_system.jpg (74.6 KB, 16 views)

Last edited by JSeery; 09-23-2016 at 05:36 PM.
JSeery is offline   Reply With Quote
Old 09-23-2016, 06:30 PM   #4
hoffernsp
Member
 
hoffernsp's Avatar
 
Join Date: May 2013
Location: MN
Posts: 68
Default Re: 1951 Merc wiring sizes

Quote:
Originally Posted by JSeery View Post
Yea, I can post the diagrams again.
Wow thanks to you both. That's exactly what I need to go forward
hoffernsp is offline   Reply With Quote
Old 09-23-2016, 07:12 PM   #5
JSeery
Senior Member
 
JSeery's Avatar
 
Join Date: Nov 2012
Location: Wichita KS
Posts: 13,412
Default Re: 1951 Merc wiring sizes

That chart/list Drbrown made is really cool. That is a lot of work, I know, I built something similar but not as elaborate.
JSeery is offline   Reply With Quote
Old 09-24-2016, 10:02 AM   #6
rotorwrench
Senior Member
 
rotorwrench's Avatar
 
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 10,665
Default Re: 1951 Merc wiring sizes

The only ones I didn't see here are the turn signal diagrams and their interrelation to the brake light system. There are diagrams available on flea-pay that will have the colors but they won't have the wire sizes (most likely all 16 AWG). Larger gauges were used for the high current draw stuff as noted in the other documents. If you have electric overdrive, it uses larger gauges too.
rotorwrench is offline   Reply With Quote
Old 09-24-2016, 12:07 PM   #7
JSeery
Senior Member
 
JSeery's Avatar
 
Join Date: Nov 2012
Location: Wichita KS
Posts: 13,412
Default Re: 1951 Merc wiring sizes

I have turn signal diagrams as well if anyone is interested.
JSeery is offline   Reply With Quote
Old 09-25-2016, 12:50 PM   #8
Drbrown
Senior Member
 
Drbrown's Avatar
 
Join Date: Oct 2013
Location: Glens Falls NY
Posts: 1,230
Default Re: 1951 Merc wiring sizes

Overdrive circuits .... I have a BW 10I OD and a 12 volt system. To avoid OD solenoid "holding" malfunctions due to current draw, it uses a 30 amp fuse and 10 gauge wiring. I suspect 10 gauge wire is okay for 6 volts as well.

Sidenote: Ground the OD housing directly to the car body/frame.
Drbrown 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

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 10:40 AM.