Vintage Oldsmobiles Curved Dash, Limited Touring, Models 40, 53, 66; Series 60, 70, 90

'55 S88 - Fried Wiring Harness - Almost burned down the car

Thread Tools
 
Search this Thread
 
Old April 23rd, 2023, 08:40 PM
  #1  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370
'55 S88 - Fried Wiring Harness - Almost burned down the car

I drove my car on Saturday to a car show about 25 miles away, round trip I probably drove it 70 miles, ran great no issues. I get back and park and go inside my wife's shop. Someone calls us about 15 minutes later, "your car is smoking". I run out there, the wiring harness is smoking, pretty much on fire from the voltage regulator around to the generator. I immediately, disconnect my battery.
Damage done, it burned it pretty good. I get it towed home and start going through it. Found the culprit, the armature lead from the generator when to ground. See photo, the wire welded itself to the harness clip (which is conveniently grounded to the chassis!). So after 68 years, it managed to chafe through the insulation and electrical tape. I am going to just count my blessings on this, could have burned the car down. Ordered a harness from Fusick and spent yesterday and today removing the main harness. I will have some questions on a view items. The dumb shop manual does not have color codes. Spent a ton of time taking pictures and diagraming everything as I unplugged it. I found some rigged stuff someone did prior with the dimmer switch to bypass the Autronic eye.
Attached Images
File Type: jpg
20230422_173020.jpg (2.71 MB, 39 views)
File Type: jpg
20230422_182300.jpg (2.65 MB, 31 views)
File Type: jpg
20230422_184728.jpg (3.08 MB, 31 views)
File Type: jpg
20230422_173031.jpg (2.75 MB, 40 views)
madmax442.com is offline  
Old April 24th, 2023, 04:24 AM
  #2  
Moderator
 
Olds64's Avatar
 
Join Date: Jul 2007
Location: Edmond, OK
Posts: 16,036
Glad you caught it in time!
Olds64 is online now  
Old April 24th, 2023, 05:14 AM
  #3  
Banned
 
no1oldsfan's Avatar
 
Join Date: Oct 2012
Posts: 6,267
No doubt. Glad you caught it. Electrical fires have killed many a cars. That sucks. Good luck on your new project.
no1oldsfan is offline  
Old April 26th, 2023, 11:29 AM
  #4  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370
Got the main harness removed finally. Fixed the fender well damage, new harness coming on Friday. Hell bent to get Eye working again as previous owner bypassed and did a terrible hack job on the harness and to the dimmer switch. I was going to live with it, but now that I am replacing it, that crap has got to go.
Attached Images
File Type: jpg
20230424_165052.jpg (4.19 MB, 18 views)
File Type: jpg
20230425_202127.jpg (2.89 MB, 18 views)
madmax442.com is offline  
Old April 26th, 2023, 12:18 PM
  #5  
Registered User
 
stellar's Avatar
 
Join Date: Feb 2009
Location: Pittsburgh Pa.
Posts: 1,314
The armature wire should be dead when the key is off. Better check the regulator cutout to see if itdid not open and kept the wire live when the key was off. Check the generator too. Armature may be smoked.
stellar is online now  
Old April 26th, 2023, 12:41 PM
  #6  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370
Originally Posted by stellar
The armature wire should be dead when the key is off. Better check the regulator cutout to see if itdid not open and kept the wire live when the key was off. Check the generator too. Armature may be smoked.
Yes, 3 voltage regulators on this car (Chinese crap now). Last time it didn't cutout and powered the generator, but the belt held the generator so it over heated and melted the generator, but didn't smoke the wiring. It all need replaced....again.
madmax442.com is offline  
Old April 26th, 2023, 01:54 PM
  #7  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370
Originally Posted by stellar
The armature wire should be dead when the key is off. Better check the regulator cutout to see if itdid not open and kept the wire live when the key was off. Check the generator too. Armature may be smoked.
Along those lines, you know anyone that converts the Delco D618 Voltage Regulators to solid state?
madmax442.com is offline  
Old April 26th, 2023, 03:44 PM
  #8  
Registered User
 
stellar's Avatar
 
Join Date: Feb 2009
Location: Pittsburgh Pa.
Posts: 1,314
I do not, but there are usa made regs available. The D618 is for gen 26-31 amps. be sure to match the gen to the correct reg.
stellar is online now  
Old April 26th, 2023, 04:26 PM
  #9  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370
Originally Posted by stellar
I do not, but there are usa made regs available. The D618 is for gen 26-31 amps. be sure to match the gen to the correct reg.

Can you tell from this photo?
madmax442.com is offline  
Old April 26th, 2023, 05:37 PM
  #10  
Registered User
 
stellar's Avatar
 
Join Date: Feb 2009
Location: Pittsburgh Pa.
Posts: 1,314
Not sure if I can read the number, but if it is 1102003 It is 30 amp and that would be the correct reg. That is providing if the unit was rebuilt it was done with the correct windings. Good luck with the repair. let us know how it goes.
stellar is online now  
Old April 26th, 2023, 05:44 PM
  #11  
Registered User
 
stellar's Avatar
 
Join Date: Feb 2009
Location: Pittsburgh Pa.
Posts: 1,314
That is a very good looking genny. You seldom see a number date tag that nice on a genny that old. This is why I suspect it has been rebuilt. The 1102003 was superceded by 1102168 which is a 35 amp genny. At this point no one knows what is inside the case. A 1102168 would take a different reg.
stellar is online now  
Old April 26th, 2023, 08:14 PM
  #12  
'70 4-Speed W Machine
 
tnswt's Avatar
 
Join Date: Feb 2020
Location: North GA
Posts: 1,172
In a like manner, I too almost lost a classic car while working with a cigarette lighter upgrade. Before I realized what was going on the cockpit filled with smoke. Lucky for me I had installed a quick disconnect on the battery when I first brought the car home; otherwise, I would have burned the car to the ground running around looking for a wrench to cut power at the battery. I spent weeks replacing melted under-dash wiring, which is no fun.

Now my old cars always receive a quick disconnect. It is one of the cheapest safety features one can install on an old car, that and a fire extinguisher.

tnswt is offline  
Old April 26th, 2023, 09:25 PM
  #13  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370
Originally Posted by stellar
That is a very good looking genny. You seldom see a number date tag that nice on a genny that old. This is why I suspect it has been rebuilt. The 1102003 was superceded by 1102168 which is a 35 amp genny. At this point no one knows what is inside the case. A 1102168 would take a different reg.
It was from Glen & Blake, should be correct. https://www.ebay.com/itm/266133169608
They also advised the following: "The original Delco Remy voltage regulator used on 1953-1956 non A/C Oldsmobiles was 1119001." Of course, these are upwards of $250 if you can find one. https://www.delcoremy.com/find-a-par...etails/1119001

Last edited by madmax442.com; April 27th, 2023 at 07:09 AM.
madmax442.com is offline  
Old April 26th, 2023, 09:28 PM
  #14  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370
Originally Posted by tnswt
In a like manner, I too almost lost a classic car while working with a cigarette lighter upgrade. Before I realized what was going on the cockpit filled with smoke. Lucky for me I had installed a quick disconnect on the battery when I first brought the car home; otherwise, I would have burned the car to the ground running around looking for a wrench to cut power at the battery. I spent weeks replacing melted under-dash wiring, which is no fun.

Now my old cars always receive a quick disconnect. It is one of the cheapest safety features one can install on an old car, that and a fire extinguisher.
Yes, I had quick-disconnect, immediately went to it when I ran out and saw the smoke. I am going to add a terminal fuse on the starter power post, so the whole car has a 100 amp fuse. A short will pop that for sure.
madmax442.com is offline  
Old April 28th, 2023, 03:28 PM
  #15  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370
...and it begins
madmax442.com is offline  
Old April 28th, 2023, 07:45 PM
  #16  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370


You have to re-use 2 of your connectors as they are no longer available. The gear selector plug and the left kick panel body harness.
madmax442.com is offline  
Old April 28th, 2023, 08:24 PM
  #17  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370



You have to feed the whole engine portion of the harness from inside the car thru the hole. I installed everything in the engine first, buttoned up the clips, etc. then moved to the inside. Doing the fuse panel first. You have to take your time to get the positioning right, but so far so good.
madmax442.com is offline  
Old April 28th, 2023, 11:54 PM
  #18  
Registered User
 
stellar's Avatar
 
Join Date: Feb 2009
Location: Pittsburgh Pa.
Posts: 1,314
looking good
stellar is online now  
Old April 29th, 2023, 08:55 AM
  #19  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370
Wiring done, everything works except the generator that's probably fried. I installed a 100 amp fuse on the wiring that goes to fuse panel and voltage regulator BAT terminals.



madmax442.com is offline  
Old April 29th, 2023, 10:17 AM
  #20  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370
So yes, the brushes lead wires got burned and severed. Hoping to rebuild it. I installed a Wilson generator for now, its charging. Looks dumb, but it works.

madmax442.com is offline  
Old May 10th, 2023, 02:23 PM
  #21  
madmax442.com
Thread Starter
 
madmax442.com's Avatar
 
Join Date: Feb 2014
Location: Albuquerque, NM
Posts: 370
So my rebuilt generator has a fried armature. The local shop quoted me $377 to fix it. I just bought the same one again from Glen & Blake, shipped to my door for $273, go figure.
https://www.ebay.com/itm/266165810181
madmax442.com is offline  
Old May 10th, 2023, 06:55 PM
  #22  
Registered User
 
Tedd Thompson's Avatar
 
Join Date: Oct 2004
Location: Forest Ranch Ca.
Posts: 7,733
I have gone through 4 Wilson generators in the past, not my favorite. One came in not working, two worked for a week or two then puked and quit. The last one I had rebuilt by an independent shop in Orland Ca. and it's been going strong for a number of years. Like a dumb *** I let my first original core go back and lost all my badging, live and learn...Tedd
Tedd Thompson is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
scrappie
General Discussion
11
March 14th, 2022 06:26 PM
jo75olds
Electrical
2
June 14th, 2011 08:34 PM
mycut
Electrical
11
August 25th, 2010 07:49 AM
stevengerard
Electrical
13
May 3rd, 2010 10:48 PM
68Tom
Electrical
12
November 5th, 2008 05:30 AM



Quick Reply: '55 S88 - Fried Wiring Harness - Almost burned down the car



All times are GMT -7. The time now is 05:12 AM.