Were there any 12 volt positive ground IH trucks ??
Not that I remember. But don't etch that in stone ! If there were, it was before alternators. Only + ground, 12 volt systems I have run across were older John Deere tractors, and they had generators. When alternators came along, everything went to 12 volt positive ground.
I know. Somebody is going to drag out some exception. I am listening !
Back a few post, Peter said the third post is a ground, like the flat spade lug.
Why two ground lugs ???
Personally, I don't know.
I saw from your pictures, the third post in question appears to be in an insulated board, isolating it from ground. That makes me think It either supports the innards, inside of the gauge and should not be grounded, OR, it is a ground and was used to be sure the gauge had a good ground, not relying on the case ground to function correctly. But then, why have a case ground ?? There is no light.
What to do ??
I would suggest connecting the gauge with nothing on the third post and see what happens. If the gauge works, don't connect anything to post #3.
If you don't get any results, touch a grounded test light to the third post "briefly" and see if the gauge comes to life. The test light instead of a jumper wire will give a little safety margin.
If the gauge starts to function normally, when post #3 is grounded, it is a ground.
If you get sparks and hopefully not smoke, discontinue the test.
gauge install instructions
1945 - 196*, Willys CJ series, questions, discussions, regarding anything related to the post war jeep.®
-
- G-Lieutenant General
- Posts: 6878
- Joined: Sat Jan 12, 2008 5:25 am
- Location: Tipton,In.
Re: gauge install instructions
Post by Wolfman » Sat Apr 07, 2018 7:29 am
Mike Wolford
CJ-2A
VEP GPW
Comm./Inst. SEL
AOPA ( 50 yrs)
EAA ( 49 yrs)
4th Inf. Div. - 5th Inf. Div. - 2nd Armor Div. - CIB
CJ-2A
VEP GPW
Comm./Inst. SEL
AOPA ( 50 yrs)
EAA ( 49 yrs)
4th Inf. Div. - 5th Inf. Div. - 2nd Armor Div. - CIB
Return to “CJ Technical Knowledge Base”
Jump to
- G503.com Forum Information
- ↳ G-Etiquette
- ↳ G-FAQ
- G503, WWII Jeeps, Willys MA, Willys MB, Ford GP, Ford GPA, Ford GPW, Bantam BRC
- ↳ MB GPW Technical Knowledge Base
- ↳ Willys MB & Ford GPW, For Sale Section
- ↳ MB GPW Wanted
- ↳ Slat Grill, early Willys MB
- ↳ VEP Ford GPW
- ↳ BRC MA GP Prototypes
- ↳ MB GPW Modifications
- ↳ Jeeps used by: USMC, USN, USCG (-NO EBAY-CRAIGSLIST-COMMERCIAL SALES-)
- ↳ Original Unrestored WWII Jeeps
- ↳ Willys Go Devil Engine Based GENERATOR SETS and COMPRESSORS(Includes Hobart Bros. & other GenSets)
- ↳ - PHOTO GALLERY -
- ↳ MOVIES & FILM - MIL. VEH ALL TYPES
- ↳ MB GPW Restoration Projects
- Vehicle Accessories
- ↳ G503 Tools & Equipment (Vehicle & Pioneer)
- ↳ Radio's and Communications
- ↳ Unit & Vehicle Markings, General Military History, Unit-Battalion-Division Information
- ↳ Weapons
- ↳ Gerry Cans or Jerry Cans
- ↳ Manuals
- ↳ Vintage Photos & Video
- G503 Family of Sites
- ↳ G503.com
- ↳ RFJP.com
- ↳ Forums.g503.com
- ↳ SN.g503.com
- ↳ Surface Zero - G503 photo hosting
- Scuttlebutt
- ↳ Events
- ↳ Transportation
- ↳ DC to San Diego 2015
- ↳ Legislative Issues
- CJ's, Civilian Jeeps
- ↳ CJ Technical Knowledge Base
- ↳ CJ For Sale
- ↳ CJ Wanted
- ↳ CJ's Modifications
- G740, G758, Willys M38 (MC), Willys M38A1 (MD), Willys M170 (MDA)
- ↳ M38 Technical Knowledge Base
- ↳ M38a1 Technical Knowledge Base
- ↳ M38, M38a1 Wanted
- ↳ M38, M38a1 For Sale
- ↳ M38, M38a1 Modifications
- ↳ - PHOTO GALLERY -
- G843 Mighty Mite
- ↳ M422 Mighty Mite
- ↳ Mighty Mite Modifications
- ↳ G843 Photo Gallery
- G838, MUTT, M151, M151A1, M151A2
- ↳ M151's Technical Knowledge Base
- ↳ M151's For Sale
- ↳ M151's Wanted
- ↳ M151 Modifications
- ↳ M151 General Discussion Board
- ↳ - PHOTO GALLERY -
- M998 Series
- ↳ Humvee Technical Knowledge Base -
- ↳ Humvee For Sale
- ↳ Humvee Wanted
- ↳ Humvee Modifications
- ↳ - PHOTO GALLERY -
- Towed Accessories
- ↳ Trailers 1/4 ton
- ↳ Trailers 1/2 ton +
- ↳ Artillery
- ↳ HAND CARTS - FOR SALE & WANTED - General Discussion & Knowledge Base
- ↳ - PHOTO GALLERY - Towed Accessories
- Reenacting
- ↳ Living History / Reenacting Knowledge Base
- ↳ Living History / Reenacting Wanted, For Sale
- ↳ Models, Toys, and Remote Control MV Equipment
- ↳ WWII Home Front
- Other MV's, US
- ↳ Amphibian, DUKW, GPA and other wheeled amphibian
- ↳ Boats, Ships, Landing Craft, and Tracked amphibian
- ↳ Warbirds - Wanted, For Sale (NO AUCTION or EBAY) and Knowledge Base
- ↳ Motorcycles & Bicycles
- ↳ Tracked
- ↳ Armor
- ↳ Power Wagon Forums
- ↳ MULE M274 Technical
- ↳ Mule M274
- ↳ Military ATVs, FATVs, LTATVs
- ↳ Staff Car
- ↳ Trucks 1/2 ton thru 2 ton
- ↳ Trucks 2 1/2 ton +
- ↳ - PHOTO GALLERY -
- Other MV's, Non U.S. Manufacture
- ↳ M201, Hotchkiss, Quarter-ton jeep®
- ↳ Other MV's, Non U.S. Manufacture
- ↳ Unimog 404
- ↳ Steyr-Puch
- ↳ - PHOTO GALLERY -
- Auctions and other listings
- ↳ Auction, Craigslist, Other Listings
- Military Vehicle Club Boards
- ↳ Joining Your Local Club
- ↳ SOMVCC
- ↳ MVCCO
- ↳ MVCC
- ↳ SCMVCC
- ↳ DDMVC
- ↳ SDMVCC
- ↳ ND-MVCA
- ↳ IHMVC
- ↳ MJCQ
- ↳ W TN MVC
- ↳ North Bay Military Vehicle Club
- ↳ NY-Penn MVCC
- ↳ WAC/B&G MVT
- ↳ Red Bull HMVA
- ↳ INMVPA, Rustbusters
- ↳ VMVC
- ↳ SJC
- ↳ MVCSC
- ↳ TNMVPA
- ↳ JFMVC
- ↳ SMMVC, Smoky Mountain Military Vehicle Club, East Tennessee, USA
Who is online
Users browsing this forum: No registered users and 41 guests