Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

2 Pages V  1 2 >  
Reply to this topicStart new topic
> Anyone built their own wiring harness?, My '75 2.0 has a trashed harness
aggiezig
post Jul 20 2016, 12:14 PM
Post #1


Porsche Wannabe
**

Group: Members
Posts: 319
Joined: 13-January 16
From: Los Angeles, CA
Member No.: 19,557
Region Association: Southern California



Hey everyone. New to 914's but not new to wiring harness(es). Curious if anyone out there has built their own harness?

Options for replacement right now look like either:
  1. Paying out the a$$ for a beautiful, new harness from one of the companies manufacturing them. (This thread)
  2. Purchasing a complete secondhand harness out of another car (HPH quoted me $950 + shipping for main harness).

But, I'm curious if anyone has ever taken the current flow diagrams or schematics and "made their own" harness? My current project has 65-70% of the original wiring in it, but has been trashed from rodents and the P/O cut the harness after the firewall.

I'm contemplating "rebuilding" the harness using what I have in the car and a wiring diagram as a template. Meaning, I'd label each wire, pull it all out, and build a new harness side-by-side with the old and diagrams as a guide.

Surely, I could do this for less in materials (obviously not counting my labor) than a new $2k+ complete harness?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JOEPROPER
post Jul 20 2016, 12:20 PM
Post #2


The answer is "no" unless you ask...
***

Group: Members
Posts: 1,207
Joined: 21-November 15
From: White Plains New York
Member No.: 19,387
Region Association: North East States



JEFF BOWLSBY... is the wire harness guy here. Check him out.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
orbit398
post Jul 20 2016, 12:23 PM
Post #3


Member
**

Group: Members
Posts: 139
Joined: 29-April 15
From: League city, Texas
Member No.: 18,681
Region Association: Southwest Region



QUOTE(aggiezig @ Jul 20 2016, 01:14 PM) *

Hey everyone. New to 914's but not new to wiring harness(es). Curious if anyone out there has built their own harness?

Options for replacement right now look like either:
  1. Paying out the a$$ for a beautiful, new harness from one of the companies manufacturing them. (This thread)
  2. Purchasing a complete secondhand harness out of another car (HPH quoted me $950 + shipping for main harness).
But, I'm curious if anyone has ever taken the current flow diagrams or schematics and "made their own" harness? My current project has 65-70% of the original wiring in it, but has been trashed from rodents and the P/O cut the harness after the firewall.

I'm contemplating "rebuilding" the harness using what I have in the car and a wiring diagram as a template. Meaning, I'd label each wire, pull it all out, and build a new harness side-by-side with the old and diagrams as a guide.
------------------------------------------------------------------------------------
Check with these guys for a used one:
Gerold Shaffer; 914eco@gmailcom
Brad May; p914ltd@yahoo.com

Surely, I could do this for less in materials (obviously not counting my labor) than a new $2k+ complete harness?

User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mueller
post Jul 20 2016, 12:30 PM
Post #4


914 Freak!
***************

Group: Members
Posts: 17,155
Joined: 4-January 03
From: Antioch, CA
Member No.: 87
Region Association: None



Yep, done it a few times, stock injection and with aftermarket EFI.

Not that difficult, just time consuming.

I think Jeff had access to some new connectors and pins, depends on how deep you want to go with it.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
stugray
post Jul 20 2016, 12:38 PM
Post #5


Advanced Member
****

Group: Members
Posts: 3,825
Joined: 17-September 09
From: Longmont, CO
Member No.: 10,819
Region Association: None



I have a mostly complete harness that was removed from the car in one piece.
The front turn signals (warts) were cut out and the ignition switch removed and replaced with a switch.

It is otherwise complete with relay board and instrument cluster if it is any help to you for parts.

I have built my own entire harness but was for a race car so has about 1/10 the total wires as in a OEM harness.
But I drew it up, ordered parts, crimped, soldered etc. so I might be of some help if you go that route.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Tom_T
post Jul 20 2016, 12:57 PM
Post #6


TMI....
*****

Group: Members
Posts: 8,321
Joined: 19-March 09
From: Orange, CA
Member No.: 10,181
Region Association: Southern California



QUOTE(JOEPROPER @ Jul 20 2016, 11:20 AM) *

JEFF BOWLSBY... is the wire harness guy here. Check him out.

(IMG:style_emoticons/default/agree.gif)

http://bowlsby.net/914/WiringHarnesses/

(IMG:style_emoticons/default/welcome.png) .... even if you're an Aggie! (IMG:style_emoticons/default/biggrin.gif)

Cheers! (IMG:style_emoticons/default/beerchug.gif)
Tom (`74 Trojan)
///////
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mepstein
post Jul 20 2016, 01:08 PM
Post #7


914-6 GT in waiting
***************

Group: Members
Posts: 19,967
Joined: 19-September 09
From: Landenberg, PA/Wilmington, DE
Member No.: 10,825
Region Association: MidAtlantic Region



Buy someone's used harness. If you place a WTB in the classifieds and are patient, you will get one - engine or body, whatever you need, in good condition, for $75-150. This will save you a TON of time, money and effort compared to diy. Just the cost of buying the proper color wires and connectors is over the top to make one harness.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
oldie914
post Jul 20 2016, 01:41 PM
Post #8


Member
**

Group: Members
Posts: 114
Joined: 2-May 10
From: Germany
Member No.: 11,680
Region Association: None



Many years ago, I spliced a rear wiring harness into a 911 that had and engine fire. Not hard to do, just takes time.
Buy a harness from somebody who has installed a new one and go to work.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JawjaPorsche
post Jul 20 2016, 04:03 PM
Post #9


Advanced Member
****

Group: Members
Posts: 3,463
Joined: 23-July 11
From: Clayton, Georgia
Member No.: 13,351
Region Association: South East States



QUOTE(JOEPROPER @ Jul 20 2016, 02:20 PM) *

JEFF BOWLSBY... is the wire harness guy here. Check him out.


(IMG:style_emoticons/default/agree.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
BeemerSteve
post Jul 20 2016, 07:09 PM
Post #10


Member
**

Group: Members
Posts: 239
Joined: 2-September 15
From: Van Zandt, Wa
Member No.: 19,123
Region Association: Pacific Northwest



I recently contacted Jeff about a replacement harness for my 73 2.0 and was informed by him that he no longer does new harnesses.
I was told best bet to find a good used one from someone.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mueller
post Jul 20 2016, 07:14 PM
Post #11


914 Freak!
***************

Group: Members
Posts: 17,155
Joined: 4-January 03
From: Antioch, CA
Member No.: 87
Region Association: None



QUOTE(BeemerSteve @ Jul 20 2016, 06:09 PM) *

I recently contacted Jeff about a replacement harness for my 73 2.0 and was informed by him that he no longer does new harnesses.
I was told best bet to find a good used one from someone.



Really?

I know he put a feeler thread out a few months looking to see if someone wanted to learn how and possibly take over doing it?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
BeemerSteve
post Jul 20 2016, 07:19 PM
Post #12


Member
**

Group: Members
Posts: 239
Joined: 2-September 15
From: Van Zandt, Wa
Member No.: 19,123
Region Association: Pacific Northwest



QUOTE(Mueller @ Jul 20 2016, 06:14 PM) *

QUOTE(BeemerSteve @ Jul 20 2016, 06:09 PM) *

I recently contacted Jeff about a replacement harness for my 73 2.0 and was informed by him that he no longer does new harnesses.
I was told best bet to find a good used one from someone.



Really?

I know he put a feeler thread out a few months looking to see if someone wanted to learn how and possibly take over doing it?

True dat!!!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ClayPerrine
post Jul 20 2016, 08:19 PM
Post #13


Life's been good to me so far.....
***************

Group: Admin
Posts: 16,445
Joined: 11-September 03
From: Hurst, TX.
Member No.: 1,143
Region Association: NineFourteenerVille



I took the stock 73 four cylinder harness and did extensive modifications on it for my six conversion. It is really time consuming to build wiring harnesses.

If you can find a good used one, I suggest you get it.

There is a wrecking yard in Grand Prairie Texas that has a 74 1.8 in it. I tried to buy the whole car, but it is for "part out and scrap only" so they can't sell it whole. You could get the harness out of it if you want to drive here and pull it.

It is at Awesome Auto Salvage.



And for those who ask... I could not get the vin. It is up on a big metal stand about 8 feet in the air.

User is offlineProfile CardPM
Go to the top of the page
+Quote Post
914Sixer
post Jul 20 2016, 08:22 PM
Post #14


914 Guru
*****

Group: Members
Posts: 9,192
Joined: 17-January 05
From: San Angelo Texas
Member No.: 3,457
Region Association: Southwest Region



I can't remember the name but some one in Holland or Germany IS making them. Found it Kroon Wire Harnesses
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Amphicar770
post Jul 20 2016, 08:30 PM
Post #15


Senior Member
***

Group: Members
Posts: 1,219
Joined: 20-April 10
From: PA, USA
Member No.: 11,639
Region Association: MidAtlantic Region



Glad to hear that the rumors of Jeff no longer producing harnesses is false. I have one of his FI harnesses. A work of art!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JeffBowlsby
post Jul 20 2016, 08:55 PM
Post #16


914 Wiring Harnesses & Beekeeper
*****

Group: Members
Posts: 8,974
Joined: 7-January 03
From: San Ramon CA
Member No.: 104
Region Association: None



Reports of my death are greatly exaggerated!

Not true, I am still here! Not sure how this misperception started and has grown legs but its false. Nothing has changed in the 914 wiring harnesses I build for our community.

I still make and have no plans to stop making all of the 914 harnesses I always have for the last 15 years...fuel injection, ignition, alternator, MPS rebuilds, etc...everything on my harness website:

http://bowlsby.net/914/WiringHarnesses/

The only exception is that I do not now nor ever have made new chassis harnesses, although I plan to someday. I have had to manage the chassis harnesses restoration projects that I accept because they take so much time away from building the other harnesses and I am not able to accept them all.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
BeemerSteve
post Jul 20 2016, 09:14 PM
Post #17


Member
**

Group: Members
Posts: 239
Joined: 2-September 15
From: Van Zandt, Wa
Member No.: 19,123
Region Association: Pacific Northwest



I did say a complete harness....but should've said complete chassis harness instead. Sorry if I raised hell from that statement Jeff it wasn't my intention to disrupt your flow. (IMG:style_emoticons/default/bye1.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
aggiezig
post Jul 20 2016, 10:34 PM
Post #18


Porsche Wannabe
**

Group: Members
Posts: 319
Joined: 13-January 16
From: Los Angeles, CA
Member No.: 19,557
Region Association: Southern California



Wow - lots of replies and lots of great information.

In the VW world, it was common to trash the factory harness and replace with a new kit. In our '74 Thing, we used a kit from Watson's Street Works like this one. It was nice moving to a "GM style" kit as there are not multiple circuits running current through each other, etc. Plus, the wires are all labeled every 3" and very heavy duty.

Has anyone done anything similar? The only real difficulties I can foresee would be incorporating some of the original components in like the turn signal switch? This would also eliminate the need for a relay board.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jeff Hail
post Jul 20 2016, 11:13 PM
Post #19


Senior Member
***

Group: Members
Posts: 1,141
Joined: 3-May 07
From: LA/ CA
Member No.: 7,712



QUOTE(Jeff Bowlsby @ Jul 20 2016, 07:55 PM) *

Reports of my death are greatly exaggerated!

Not true, I am still here! Not sure how this misperception started and has grown legs but its false. Nothing has changed in the 914 wiring harnesses I build for our community.

I still make and have no plans to stop making all of the 914 harnesses I always have for the last 15 years...fuel injection, ignition, alternator, MPS rebuilds, etc...everything on my harness website:

http://bowlsby.net/914/WiringHarnesses/

The only exception is that I do not now nor ever have made new chassis harnesses, although I plan to someday. I have had to manage the chassis harnesses restoration projects that I accept because they take so much time away from building the other harnesses and I am not able to accept them all.


Were on to you. Please stop impersonating the artist formerly knows as Jeff Bowlsby. You write like Jeff, get technical like Jeff, use his screen name etc. Have a clone website just like Jeffs. The only way to clear this up is the real Jeff will stand up and make chassis harnesses.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
larss
post Jul 21 2016, 08:37 AM
Post #20


Member
**

Group: Members
Posts: 431
Joined: 10-September 09
From: Sweden
Member No.: 10,787
Region Association: Scandinavia



The header of this thread is "Anyone built their own wiring" and yes I made a new harness on my own (since PO had chopped the original one into one feet pieces to get it out). Not to hard really, used a piece of board and nails to represent different objects as the rear lights etc for to get the distances right, took some effort but almost no money.
No, I did not get all insulation colors same as the original and it does not look (but function!) like the original. A good thing is that I could put in some spare wires for oil pressure sender etc.

Lars S


(IMG:http://www.914world.com/bbs2/uploads_offsite/www.lsmteknik.se-10787-1413564587.1.jpg)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

2 Pages V  1 2 >
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 13th July 2025 - 10:46 AM