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Wiring harness opinions

Discussion in 'Early CJ5 and CJ6 Tech' started by w3srl, Mar 16, 2005.

  1. Mar 16, 2005
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    I'm finally getting around to doing the wiring in my flattie, and I have a Painless Wiring harness sitting on the floor of the garage next to the Jeep. For those of you not familiar with my project, I have a '48 CJ-2A that is nearly bone-stock, with the exception of a 3-wire Delco alternator, a Pertronix ignition system and GM front disc brakes. I have kept the L-134 engine and t-90/D-18 as well as the stock axles.

    My question is this: I'm looking for a good place to install the fuse block, and also a good way to run the wiring to the back of the Jeep. At first blush I thought about putting the fuse block up high on the driver's side of the firewall under the hood, but I've started to second-guess that, thinking that this might not be so good when water and mud get up in there. On the other hand, this Jeep saw more than it's share of creek crossings in its 51-year history prior to restoration, judging by the 5-gallon bucket of mud and crud I hauled out from inside the tub and from up under the dash when I tore it down. From this I figger that putting the fuse block up on the backside of the firewall where it would be a cast-iron bi**h to get to it and it would not necessarily keep the wiring safe from water and corrosion.

    I'm also considering running the tail light wires up over the wheelhouses and encasing them in plastic wire-loom before dropping the wires down into the rear of the rear fenders, instead of running them along the frame rails as was stock. I'm also thinking of running LED lighting inside the repro NACO taillight housings, and the mid-50's 'beehive' front turn-signal housings that I have retrofitted to the stock grille. My whole theme with this Jeep is to upgrade what I can to improve driveability and safety, while still retaining the more or less 'stock' look of the 'ol girl.

    What are your opinions fellers?
     
  2. Mar 16, 2005
    mb82

    mb82 I feel great!

    Charlottesville Va
    Joined:
    Mar 17, 2003
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    2,706
    my plan for my fuse box was to put it under the dash but on a flipdown setup kinda like some modern vehicals have. not sure how im going to make it but well... i have not gotten that far yet.
     
  3. Mar 16, 2005
    dvmbrad

    dvmbrad Member

    Frankfort, KY
    Joined:
    Oct 3, 2004
    Messages:
    53
    About 25 years ago when I rewired a 64 CJ5 (did it from scratch from a Chilton diagram) I installed one on the firewall; it wasn't hard to access. That was an old plow jeep and didn't see mud though. If you were installing it, couldn't you put a waterproof container like a rubbermade thing under it so you could snap the lid over it? My wife and I did that for the outdoor electric fence charger on our horse paddock and it works fine. Just a thought
     
  4. Mar 16, 2005
    James P. Enderwies

    James P. Enderwies Sponsor

    Lake Havasu City, AZ
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    Feb 2, 2003
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    747
    Brad: I was thinking that also. I know somewhere I have seen them just for such purposes--maybe Waytek or Parts Express. Just a thought.
     
  5. Mar 16, 2005
    dvmbrad

    dvmbrad Member

    Frankfort, KY
    Joined:
    Oct 3, 2004
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    53
    Last fall I saw a guy out at Natural Bridge wheelin with an M38; he'd swapped the air fliter for a K&N type and mounted it with a Rubbermaid container under it (minus the top). It did a great job keeping mud from slashing up and clogging the filter.
     
  6. Mar 17, 2005
    AKCJ

    AKCJ Active Member

    Fairbanks, Alaska
    Joined:
    Aug 12, 2003
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    1,035
    I put mine on the drivers side kick panel (to the left of the clutch pedal). It's out of the way but cleaner than under the hood. Fine for 40" deep water crossings - or deeper if not too long.

    I ran wires to the back inside the frame rail. At first I liked your idea of going inside but the problems with mud and such are with the connections at the lights so going inside doesn't help much with that.
     
  7. Mar 17, 2005
    tdobson

    tdobson Tom

    Hampton, Va.
    Joined:
    Nov 7, 2004
    Messages:
    65
    I'm working on my wiring now and am going to mount my fuse panel on the passenger sied on the back side of the dash...I'm going to stick it up with velcro glued to the panel and back of dash so I can pull it down for easy access...I like the basicly stock wiring to the rear....The ones that are there lasted a long time and should last a long time again without too much trouble...basicly, water and mud won't hurt the wires, just the connectors which won't be helped by running the wires inside the tub
     
  8. Mar 17, 2005
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
    Joined:
    Sep 20, 2002
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    3,437
    All of my wiring to the rear I've run inside my tub instread of in the framerail. Used the plastic wire loom stuff, some zip ties and padded cable clamps keep it out of the way, almost unnoticeable.
    I too was thinking that a Tupperware/Rubbermaid enclosure might work well for your fuse block.
     
  9. Aug 20, 2005
    ellislives

    ellislives Greenhorn

    Denver, CO
    Joined:
    Aug 15, 2005
    Messages:
    16
    Hello All -

    I know I've been posting a bunch but I just got the truck and I'm both excited and a bit dismayed at the work in front of me.
    So besides the custom (read: hand made with duct tape and bailing wire) gas tank welded between the wells behind the front seats, the wiring job on my '56 looks like a map of the Underground. I think I saw speaker wire connecting my gauges and YES the battery is mounted in front of the grill (see pic).
    So I need a wiring harness. I've read the posts on the EZ wiring and of course, Painless. I think I will go ahead and spend the extra cash and get the Painless. It appears dummyproof...we'll see. I did notice that they have recently released a weatherproof edition (part #10142) in addition to the standard 12 circuit model.
    I was wondering if anyone has any experience with both. Can anyone convince me that the weatherproof model is worth the extra $100. Let me also say that this Jeep will never be going through any rivers but I am willing to pay for something that will last longer.

    Regards,

    elllllllllllllllllllllllllllllllllllllllis
     
  10. Aug 20, 2005
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
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    The Painless kit is no more dumby proof than the EZwire kit only more expensive, I have a EZ kit and am basically the one that recommended it on this board 5 years ago. The quality of both kits is the same. If you don't intend to submerge the wiring harness don't waste your money, its not gonna last one minute longer as all the difference is, is a sealer on the pre terminated connectors and wires. You can buy sealer in a bottle and brush it over the connectors as I did.
    My .02!!
     
  11. Aug 21, 2005
    ellislives

    ellislives Greenhorn

    Denver, CO
    Joined:
    Aug 15, 2005
    Messages:
    16
    Mike -

    The Jeep has a Ford motor in it. Do you think I'll be able to match colors with a artistic license???
     
  12. Aug 21, 2005
    dohc281

    dohc281 It is what it is.

    Laurel Springs, N.J.
    Joined:
    Dec 30, 2004
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    605
    I agree, I installed an EZ kit this spring and had no problems.
     
  13. Aug 21, 2005
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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  14. Aug 21, 2005
    Boyink

    Boyink Super Moderator Staff Member

    Tulsa, OK
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    I've used a grille "clicker" on shrinkwrap...just have to know when it's done shrinking and about to burn...;)
     
  15. Aug 21, 2005
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    Yeah, a butane lighter works too (run some tests first). Don't use any flame that makes soot though.

    The heat shrink is better than the brush-on waterproofing becasue it adds strength (strain relief) to the joint.
     
  16. Aug 21, 2005
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
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    ditto what AKCJ did
    up under the dash, drivers side, as high as possible
    went Painless 12 circuit
    won't ever use all the circuits, 9 would be more than enough
     
  17. Aug 21, 2005
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
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    I put mine on the passenger side of the transmission hump on the firewall, so that it is right in the line of sight when you looked under the dash behind the glove box, the drivers side already has a heater and gauges and I wanted mine where there was nothing in the way in case I had to pull a fuse or see up under there. I'm a tight butt and when I saw a Painless and Centech kit and found the EZ-wire and saw it was almost $200 cheaper than the others I went with it, been happy ever since.
     
  18. Aug 22, 2005
    Project71-5

    Project71-5 BACON

    Gypsum, CO
    Joined:
    Sep 24, 2002
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    897
    I went with an EZ wire kit and mounted the fuse block as high as I could possibly get it on the inside passenger firewall. My wiring then goes out the stock firewall grommet location and is then split into the front and rear bundles.

    I put GM weatherpak connectors in the rear bundle right after it comes out of the firewall. This lets me easily remove the tub without having a birdsnest of wiring. The bundle is run along the framerail and uses sealed connnectors and heat shrink tubing.

    I've been in plenty of deep mud and water and "knock on wood" have had no electrical gremlins yet ;)
     
  19. Aug 23, 2005
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
    Joined:
    Dec 22, 2002
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    Steve, I used the plastic loom stuff for the 3 wires I think that run to the rear lights. Ziptied the loom to the inner frame rail and it keeps it out of the way from snagging on anything. I've done this to Wimpy and Achilles with no problems yet.



    Fuse block???

    Whats that??
    :rofl:
     
  20. Aug 23, 2005
    Old Bill

    Old Bill Aggressively passive....

    Really Southern...
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    Nov 12, 2004
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    I will echo the EZ wiring sentiments. Great kit, and after looking over the Painless manual, no harder to install. You WILL have to put on your thinking cap for either kit.

    BTW.... DO NOT CUT ANY WIRES UNTIL THEY ARE ALL RUN WHERE THEY NEED TO GO AND YOU ARE SURE THAT THEY ARE WHERE YOU WANT THEM!!!! Don't ask how I know that. :rofl:
     
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