Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Vafri
 
Join Date: Sep 2007
Location: Worldwide
Posts: 2,144
Part two: Are these voltmeter readings normal?

Thank you upfront for any advice or suggestions. You will see the backstory here: Are these voltmeter readings normal?

OK, since the red battery light was lit when I turned the key “on”, and stayed lit when I started the car, it collaborated with the 12.4V at the cigarette lighter voltmeter.

The stats I now have:

-1983 911 SC
-Battery is disconnected and charged, indicating 13.6V
-I removed the alternator once again, installed new voltage regulator, had it retested. It indicates 14V
-14-pin (blue wire) has no corrosion
-Checked battery cables, good clean connections, good earth
-New transmission to body earth strap

What I’m struggling with now, is that I’m at the point of reinstalling the alternator. I’d love to run a test wire from the D+ and D- on the alternator to the POS/NEG on the battery, but once it’s installed, there is no access. Is there anything else I need to look over prior to reinstalling the alt? If the battery is good, and the alternator is good, it must be wiring somewhere, and it doesn’t seem overly complicated, just challenging to test.

Old 11-30-2015, 05:56 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
76 911S Targa
 
Join Date: Oct 2010
Location: Idaho
Posts: 1,150
Only other thing I can think of is to make sure the alternator ground strap has a good connection. It goes from the engine, directly below the alternator, to the 8 o'clock (as you look forward from the bumper) alternator mounting stud, secured with one of the six nuts. You can check continuity of the wiring to the battery using a test light in the engine compartment. Good luck!
__________________
76 911S, 2.7, Bursch Thermal Reactor Replacements, Smog Pump Removed, Magnecors, Silicone Valve Cover Gaskets, 11 Blade Fan, Carrera Oil Cooler, Turbo Tie Rods.
Old 11-30-2015, 07:52 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered
 
T77911S's Avatar
 
Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
looking at your old post it looks like you pinched the wire between the alt and the fan housing.
you also got part of the blue wire.

you could check the resistance of the wires to the alt to ground. i really doubt you burned anything up other than the alt,
i would jsut put it in and see what happens.

like captain ron (just watched the movie) said, if anything is going to happen it will happen at sea.
__________________
86 930 94kmiles [__] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
03 BMW 330CI 220K:: [__] RUNNING: [__] NOT RUNNING:
01 suburban 330K:: [__] RUNNING: [__] NOT RUNNING:
RACE CAR:: sold
Old 11-30-2015, 08:52 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Vafri
 
Join Date: Sep 2007
Location: Worldwide
Posts: 2,144
Targalid, one interesting note is that my car does/did not have an alternator ground strap. I have driven the car ~15K since purchase with the alternator working until this event. I have purchased a strap from our host.

T77911S, I replaced the entire VR; didn't repair the pinched wires. The alt has checked good for 14V.

I appreciate your input. I am open to any other thoughts as I work through this.
Old 11-30-2015, 09:04 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered
 
T77911S's Avatar
 
Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
you really need to stop opening threads on the same subject/problem.

glad you fixed it.

__________________
86 930 94kmiles [__] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
03 BMW 330CI 220K:: [__] RUNNING: [__] NOT RUNNING:
01 suburban 330K:: [__] RUNNING: [__] NOT RUNNING:
RACE CAR:: sold
Old 12-01-2015, 03:35 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Reply


 


All times are GMT -8. The time now is 01:13 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.