Author Topic: Replace original wire harness w/aftermarket - smart or dumb?  (Read 4778 times)

jzearfoss

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Replace original wire harness w/aftermarket - smart or dumb?
« on: December 11, 2015, 20:17:11 »
I have my 1968 280 SL totally apart and I am considering replacing the original wire harness with an up to date aftermarket harness.  Has anyone out there done this?  The original harness is fried in several places and I am a bit leery of its dependability given its age. Anyone have any thoughts on this, such as how this might affect the value of the car?  I have the time and patience to solder on all the original connectors and wrap the finished product.  I would most likely keep the original fuse box mounted (for looks) but the new fuse panel would be mounted under the dash.
1968 280 SL (AT)
2000 BMW Z3
1962 Pontiac Grand Prix
1951 Studebaker Commander
1937 Plymouth.

mbzse

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Re: Replace original wire harness w/aftermarket - smart or dumb?
« Reply #1 on: December 11, 2015, 21:02:05 »
Quote from: jzearfoss
../...I am considering replacing the original wire harness with an up to date aftermarket harness..../...
You also have the option to re-fit an original type W113 wiring harness into your car. That would mean no worry about impact on vehicle value and colours as well as type of wiring materials would match original spec etc.
There are vendors that offer such product, either complete harness or parts of it, with or w/o connectors.      /Hans in Sweden
« Last Edit: December 11, 2015, 21:58:23 by mbzse »
/Hans S

Benz Dr.

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Re: Replace original wire harness w/aftermarket - smart or dumb?
« Reply #2 on: December 11, 2015, 21:10:08 »
I would think that if your harness is fried in places a replacement would be a good idea. RI wiring makes very high quality replacements with all of the same color coded wires. If anything, it won't reduce the value of your car and might will enhance it.
« Last Edit: December 13, 2015, 02:28:11 by Benz Dr. »
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

Garry

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Re: Replace original wire harness w/aftermarket - smart or dumb?
« Reply #3 on: December 11, 2015, 21:11:44 »
I have just had a complete wiring harness made for a VW. The cost was $630 Aust dollars so about $450 USD.  Not that expensive and made to look like original. I looked at his other work and discussed a Pagoda wiring with the cotton wrap and he indicated that it was simple to do and would cost about $100 more as a bit more complicated that a 60’s vw Kombi. I gave them my old one and they gave me back a new one, and would do the same for a Pagoda.

If you can find a company that remanufactures them it would be a whole lot cheaper and easier.

The company here in Melbourne Australia is Vintage Wiring Harness    http://www.vinwire.com.au

Garry
Garry Marks
Melbourne/ Kyneton, Brisbane. Australia
1969 MB 280SL 5 speed RHD SOLD.
1965 MB 230SL Auto RHD Lt Blue 334G, Top 350H, Tourist Delivery.
1972 MB 280CE Auto RHD 906G
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Jack Jones

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Re: Replace original wire harness w/aftermarket - smart or dumb?
« Reply #4 on: December 12, 2015, 03:31:36 »
I picked up a new harness from an abandoned project that originally came from Rhode Island Wiring. The harness is very well made including all wires with correct tracer colours and nice details like soldered eyelet connections and the cloth wrap is very well done. You have to solder all terminals and either reuse or replace the connectors but I enjoy that kind of stuff. ;) 
Jack Jones                                                                                                   
1970 280SL 4 Speed
1984 280SL 5 Speed

ctaylor738

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Re: Replace original wire harness w/aftermarket - smart or dumb?
« Reply #5 on: December 13, 2015, 01:32:21 »
I put a Rhode Island harness in my 280SL when I restored it.  I enjoyed swapping the terminals.  I've had the car judged at several events, including the merciless examination at PUB 2015 by Jon Bernardi and Pete Lesler.  No points off for wiring.

You do need a serious soldering setup, though.  They used a lot of solder in the original harness.
Chuck Taylor
1963 230SL #00133
1970 280SL #13027 (restored and sold)
1966 230SL #15274 (sold)
1970 280SL #14076 (sold)
Falls Church VA

wwheeler

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Re: Replace original wire harness w/aftermarket - smart or dumb?
« Reply #6 on: December 13, 2015, 05:05:29 »
You do need a serious soldering setup, though.  They used a lot of solder in the original harness.
[/quote]

By serious set up, what do you mean? Do you have any pictures of what equipment you are talking about? I have butane fired soldering iron, but curious about other companion items.
Wallace
Texas
'68 280SE W111 coupe
'60 220SE W128 coupe
'70 Plymouth Roadrunner 440+6

Jonny B

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Re: Replace original wire harness w/aftermarket - smart or dumb?
« Reply #7 on: December 13, 2015, 16:30:23 »
Oh my, a new sobriquet, Jon the Merciless! I will have to use that the next time I judge.....! Folks at La Jolla Concours, watch out.
Jonny B
1967 250 SL Auto, DB 568
1970 280 SL Auto, DB 904
1966 Morris Mini Minor