International Full Size Jeep Association
Home Forums Reader's Rigs Tech Library Trail Stories FSJ-List
International Full Size Jeep Association  

Go Back   International Full Size Jeep Association > Tire Kickin' > General FSJ Tech

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 03-17-2013, 12:16 AM
Forrest the FSJ's Avatar
Forrest the FSJ Forrest the FSJ is offline
Member
 
Join Date: Feb 14, 2013
Location: SC
Posts: 79
Re-wiring an FSJ

Between brittle harnesses, clipped wires, a potential hot ground, and melted insulation, I'm thinking it would be a good idea to rewire my 1990 Grand Wagonner. I've seen the rewiring kits on BJs - are these complete, as in every single wire, pigtail, and harness needed? If not, any ideas on where to get it? Any body else done this? How hard was it? Any tips or tricks?

Last edited by Forrest the FSJ : 03-17-2013 at 01:53 PM.
Reply With Quote
  #2  
Old 03-17-2013, 06:46 AM
uncle_asa's Avatar
uncle_asa uncle_asa is offline
New Member
 
Join Date: Dec 14, 2011
Location: Zelenograd, Russia
Posts: 3
BJ's sells generic kits, so you will need new terminals for connectors or just use you old connectors. Not done it yet, but received recently box from them.

There's also no wiring for ignition stuff, it's just all the generic wiring which found on every car (as described on BJ's site).
__________________
2001 Isuzu VehiCROSS (build in progress): 4JX1/A340/part time, 2" body lift, front Aisin hubs, rear Aussie Locker, 4:56 gears
1980 Jeep Cherokee (body work in progress): 1.5" body lift
1987 AMC Eagle: daily driver
Reply With Quote
  #3  
Old 03-17-2013, 11:12 AM
btpdragon's Avatar
btpdragon btpdragon is offline
Member
 
Join Date: Nov 07, 2009
Location: Brea, CA
Posts: 104
ZM Jeep sells complete harness kits. They also sell the individual harnesses. Just search wiring harness on their site. Pricey, but they are complete with all connectors. Not sure what year your Jeep is, but these say they are for 79-85 FSJ

Complete kit
http://stores.zmjeeps.com/Detail.bok?no=146654
__________________

1975 Cherokee Chief W/T
360/TH400/QT w/part time
Back on the road!!!

1979 Cherokee Chief W/T[/b]
360/T18A/D20
Currently in long term storage awaiting funds for restoration.
Reply With Quote
  #4  
Old 03-17-2013, 11:37 AM
budojeepr budojeepr is offline
Master Mechanic
 
Join Date: Feb 02, 2006
Location: Redding, CA
Posts: 933
I sourced a 12-circuit generic GM kit from EZ Wiring (via eBay). It came with fuse box, some connectors, fusible link and good instructions. It came out well. I'd recommend a 16-circuit one for expansion.

Get a good wire stripper, a good crimper, lots of good connectors, solder, soldering iron or torch, lots of shrink-tubing - 3/8" works well. Also get the wire sheathing/loom of your choice, and a variety of good-quality zip ties. Cable clamps are good to have around.

A good source for supplies is Del City (google it), and madelectrical.com is also good to work with.

Take your time and have fun!
__________________
Don't be yourself. Be someone a little nicer. -Mignon McLaughlin, journalist and author (1913-1983)
Reply With Quote
  #5  
Old 03-17-2013, 01:10 PM
Southern Gorilla's Avatar
Southern Gorilla Southern Gorilla is offline
Gear Head
 
Join Date: Apr 05, 2010
Location: Euless, TX
Posts: 532
I rewired my '76 with a used harness from a '78. The advantage was that almost all of the connectors matched up perfectly. The disadvantage was that small differences between years and options made it almost as tough as using a new generic kit.

When I go to rewire it again (properly) I'll be using a custom harness from Ron Francis wiring. They're way more expensive than the generic kits. But they aren't generic. They ask what alternator, distributor, steering column, and accessories you are running so they can supply the correct connectors with the harness. The wires and fuse block are labeled to show what circuit they are. And the wire itself is not the same generic garbage you get at the local parts store. The only reason I went the cheap route this time is because I didn't want to buy the fancy harness without knowing for sure what components I would be using in my build.
__________________
It's not an SUV. It's an SEV: Surface Exploration Vehicle.

'76 Cherokee NT
360/T-18

Trailers belong behind trucks, not under them.

Why? Because nobody in the history of 'wheeling has ever said, "good thing I put those smaller tires on my rig."
Reply With Quote
  #6  
Old 03-17-2013, 04:16 PM
lobie's Avatar
lobie lobie is offline
Grease Monkey
 
Join Date: Feb 25, 2011
Location: Upstate SC
Posts: 452
Quote:
Originally Posted by budojeepr
I sourced a 12-circuit generic GM kit from EZ Wiring (via eBay). It came with fuse box, some connectors, fusible link and good instructions. It came out well. I'd recommend a 16-circuit one for expansion.

EZ wiring is what I plan to use.
http://www.ezwiring.com/wiring_harness.html

It may not be the best but it's a huge improvement on the stock 30+ year wiring. If I was restoring I may go the other way but it's hard to beat a 20 circuit harness for less than $200.
__________________
77 Wagoneer | 6.0 | TH400 | NP205 | Sterling 10.5 | Dana 60
07 6.7 Cummins 2500 4wd

lobie4x4.com
CFSJC
Reply With Quote
  #7  
Old 03-17-2013, 05:04 PM
tgreese's Avatar
tgreese tgreese is offline
 
Join Date: May 29, 2003
Location: Medford MA USA
Posts: 11,030
Quote:
Originally Posted by Forrest the FSJ
Between brittle harnesses, clipped wires, a potential hot ground, and melted insulation, I'm thinking it would be a good idea to rewire my 1990 Grand Wagonner. I've seen the rewiring kits on BJs - are these complete, as in every single wire, pigtail, and harness needed? If not, any ideas on where to get it? Any body else done this? How hard was it? Any tips or tricks?

JMO - you should be able to repair the harness you have. 1990 is not that old as these things go, so the wire should still be in decent shape.

There's lots of good information here - http://www.jeepforum.com/forum/f8/ba...arted-1340134/

This thread does not talk much about splicing wires, but you can easily repair wires and connectors with uninsulated butt connectors and adhesive-lined heat-shrink tubing. Just splice the hacked wires back together one at a time.

Wiring is not that difficult if you refuse to be overwhelmed, and address one circuit at a time. Anything that someone made a mess of, you can untangle if you are patient and systematic.

Make some photocopies of your wring diagram, buy a box of colored pencils, and trace out the wires one at a time. Color in the trace with your pencils as you trace it. Easy... as long as you only look at one circuit at a time.
__________________
Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination ATs, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
ECO Green: '15 FCA Jeep Cherokee KL Trailhawk
Reply With Quote
  #8  
Old 04-29-2013, 03:30 PM
Forrest the FSJ's Avatar
Forrest the FSJ Forrest the FSJ is offline
Member
 
Join Date: Feb 14, 2013
Location: SC
Posts: 79
Great advice, Greese. Thanks
Reply With Quote
  #9  
Old 04-29-2013, 03:54 PM
pcoplin's Avatar
pcoplin pcoplin is offline
Member
 
Join Date: Feb 17, 2013
Posts: 147
Good timing for me.

I wired up the engine side of my Magnum swap, however haven't touched the body side of the wiring. Now might be the best time as ever since I'm going to be removing a few circuits underhood.

I may take the dash off and really fix the wiring under there. It's a NASTY mess of cheap wiring from the factory...
__________________
85 Wagoneer 5.2/44RE/NP229
98 TJ 5.9/46RE/D300
01 F250 Powerstroke
***Space saved for a J-truck***
Reply With Quote
  #10  
Old 04-29-2013, 03:57 PM
pcoplin's Avatar
pcoplin pcoplin is offline
Member
 
Join Date: Feb 17, 2013
Posts: 147
BTW, where does one get the "factory" style crimp terminals at? I know my Dodge has tiny ones that are dealer only it seems. Will the array of crimp terminals at Radio shack suffice for the Wagoneer connectors? They seem to be mostly large flat blade. Thanks!
__________________
85 Wagoneer 5.2/44RE/NP229
98 TJ 5.9/46RE/D300
01 F250 Powerstroke
***Space saved for a J-truck***
Reply With Quote
  #11  
Old 04-29-2013, 04:04 PM
serehill's Avatar
serehill serehill is offline
Gone,Never Forgotten.
 
Join Date: Nov 22, 2009
Location: Mesquite Texas
Posts: 8,622
totally agree

Quote:
Originally Posted by tgreese
JMO - you should be able to repair the harness you have. 1990 is not that old as these things go, so the wire should still be in decent shape.

There's lots of good information here - http://www.jeepforum.com/forum/f8/ba...arted-1340134/

This thread does not talk much about splicing wires, but you can easily repair wires and connectors with uninsulated butt connectors and adhesive-lined heat-shrink tubing. Just splice the hacked wires back together one at a time.

Wiring is not that difficult if you refuse to be overwhelmed, and address one circuit at a time. Anything that someone made a mess of, you can untangle if you are patient and systematic.

Make some photocopies of your wiring diagram, buy a box of colored pencils, and trace out the wires one at a time. Color in the trace with your pencils as you trace it. Easy... as long as you only look at one circuit at a time.


You can easily repair what you have it's fairly recent. As long as it isn't burnt just repair it. The 90's were the best wiring these FSJ's had so it's not a bad system. It's also very easy to find these intact in Junkyards. It would be a good idea to go out to one if you truly believe that the one you have is not repairable get one out of another vehicle. If truly brittle & not serviceable it is unique it's like that. Save some $$. The beauty is you can mark it & know what things go to what. There is no reason to try to do a scratch system unless you are really good at this stuff. A total rewire is more than most people can handle. It's easy to get over your head on these. Working within your capability is important & tgreese made some good points as to why not to rewire. Unless you're wildly modifying it there's no reason to gut it.
Good luck.
__________________

80 Cherokee
360 ci 727 with
Comp cams 270 h
NP208
Edlebrock performer intake
Holley 4180
Msd total multi spark.
4" rusty's springs
Member, FSJ Prissy Restoration Association

If you can't make it better why waste your time. No use repeating the orignal mistakes. I'm to old to push it that's why.
Reply With Quote
  #12  
Old 04-29-2013, 04:09 PM
FSJ-Earl's Avatar
FSJ-Earl FSJ-Earl is offline
304 AMC
 
Join Date: May 02, 2003
Location: Middletown, PA
Posts: 1,574
ZM Jeeps harnesses are plug and play. They are marked, have the proper terminals, better wire, etc., etc., etc. I have assisted with the rewire of multiple FSJs with the ZM Jeeps harnesses. Can't go wrong.
__________________
FSJ-Earl
2002 F350 Diesel - tow rig / family hauler
2008 4 door JK Rubicon - Wife's Daily Driver
1989 GW - the one that started it all
1983 - J15 - J10 body + J20 running gear = J15 Trail rig
Reply With Quote
  #13  
Old 04-29-2013, 11:28 PM
blakeusa's Avatar
blakeusa blakeusa is offline
Master Mechanic
 
Join Date: Jul 21, 2005
Location: Ashford, CT
Posts: 812
I used an EZ harness and found the quality of wire quite good, and think its a good fit for an older rig.

The newer ones have more electronics and connectors etc and it may be worth the plug and play from Zack.
__________________
1971 J4000 Gladiator w/AMC 401 Restoration Project

Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
TFI!!! HELP!!!!!!!!(Update!!) Its all about the Jeep General FSJ Tech 29 04-05-2011 03:39 PM
Check out my wiring diagram gte901m General FSJ Tech 32 11-08-2009 09:09 PM
electric fan wiring write up with (with pics) Wagoneerlover General FSJ Tech 43 07-12-2009 07:01 AM
new wiring job (Interior of rig with pics!!) Wagoneerlover General FSJ Tech 21 05-14-2008 06:35 PM
Wiring old style (early 60s) headlight buckets into new style wiring harness jode General FSJ Tech 3 06-25-2007 10:11 PM


All times are GMT -6. The time now is 05:02 PM.


Powered by vBulletin Version 3.5.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
corner corner