solid state regulator

1959 - 1978, M151, M151A1, M151A2, Technical questions and discussions, regarding anything related to the M151.
exoilfld
G-Corporal
G-Corporal
Posts: 20
Joined: Fri Jul 15, 2016 1:33 pm

Re: solid state regulator

Post by exoilfld » Fri Jul 26, 2019 5:25 am

I agree, but the wiring harness is not available; only the a2 is made.

Ben Dover
Gee Addict
Posts: 47151
Joined: Sun Mar 02, 2008 2:37 pm
Location: Proving Ground

Re: solid state regulator

Post by Ben Dover » Fri Jul 26, 2019 6:42 am

They are heavy where are you located?
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO

Rickf
G-Lieutenant General
G-Lieutenant General
Posts: 4813
Joined: Sun Mar 19, 2006 12:04 pm
Location: Pemberton, New Jersey

Re: solid state regulator

Post by Rickf » Fri Jul 26, 2019 7:14 am

A1 wiring harness is available new from Vintage wiring of Maine. Not cheap though. We really need to know exactly what vehicle you have though, there still seems to be some questions about that. Can you post some pictures? If it is an A1 then the wiring can be made up with no real problems from parts that can be found in the flea markets or on flea-bay.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

User avatar
W. Winget
LTC, U.S. Army
LTC, U.S. Army
Posts: 2760
Joined: Mon Dec 16, 2002 12:37 pm
Location: USA, Virginia, Carrollton
Contact:

Re: solid state regulator

Post by W. Winget » Fri Jul 26, 2019 7:29 am

Whichever model MUTT you have, it's easier to rewire a short harness into three or two wire configuration than change out generator (25 amp 2 belt) to alternator(65 amp 3 belt) with pulleys and belts being modded.
Bottom line if all you are doing is normal electrical current of engine and lights then 25 amp keeps it charged.

You start adding heavy radios that draw current as they transmit like the VRC 46 series you need a higher amperage charging system to keep up. That's the ONLY reason to upgrade from 25 amp generator to 65 amp alternator service..... and no one is transmitting on military frequencies now are they. :wink:
If you can't ID the jeep, look at this post: viewtopic.php?f=104&t=306106

V/R W Winget
Looking for 1918 Standard B 'Liberty' truck parts

exoilfld
G-Corporal
G-Corporal
Posts: 20
Joined: Fri Jul 15, 2016 1:33 pm

Re: solid state regulator

Post by exoilfld » Fri Jul 26, 2019 7:57 am

I know it is an a1 with 2 grow pulleys. The harness I got from Red River is for an a2. It does not have the plug that goes into the regulator. I am thinking about getting a modern 24 volt alt and adapting it to the mounting and have a 2 grove pulley put on it. That will be a lot cheaper and can use the a2 harness. I know shipping would be a lot for a 60 amp( I am in East Texas) plus then I would have to change the pump and crank pulleys. One ebayer said he could put any pulley I want for about $100. What do y'all think. I tried to download a picture, but could not make it work.


Ben Dover
Gee Addict
Posts: 47151
Joined: Sun Mar 02, 2008 2:37 pm
Location: Proving Ground

Re: solid state regulator

Post by Ben Dover » Fri Jul 26, 2019 8:17 am

The 60 Amp system does not use the conventional or separate Regulator.
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO

User avatar
W. Winget
LTC, U.S. Army
LTC, U.S. Army
Posts: 2760
Joined: Mon Dec 16, 2002 12:37 pm
Location: USA, Virginia, Carrollton
Contact:

Re: solid state regulator

Post by W. Winget » Fri Jul 26, 2019 8:54 am

I would put up a post on "WTB 60 amp M series alternator with three pulleys in East Tx"
on the G (and in several truck size categories not just MUTTs) see what turns up, I see the ridiculous prices they are asking for new one's and only the Federal Government will pay for those parts. I sold them used at Aberdeen for about $100 if they turned, and $20 if it was a paperweight needing a rebuild for sure. I have a NOS (60's)rare 100amp unit with cables and pulleys I wanted to unload for $300 and no one was buying it.
Some one around you has military vehicles they are parting out, a vehicle show with parts, or a used one sitting in the way as a toe stumper they will want to get rid of. If your not in a hurry you can find a reasonably priced used unit, brushes or internal rebuild diode plates are out there for only a few dollars, so that's the smartest way to proceed unless you have a lot of $$$ floating around.
Fast
Cheap
Reliable
you can only pick two.
V/R W Winget
Looking for 1918 Standard B 'Liberty' truck parts

Rickf
G-Lieutenant General
G-Lieutenant General
Posts: 4813
Joined: Sun Mar 19, 2006 12:04 pm
Location: Pemberton, New Jersey

Re: solid state regulator

Post by Rickf » Fri Jul 26, 2019 12:01 pm

And the pulleys should be very easy and fairly cheap to find, they were used on the A2 from 1970 up to end of production in the late 80's! There are thousands of them out there. Just out of curiosity, what are you using for a fuel pump? Do you have the A2 fuel pump on the engine or do you still have the A1 electric pump in the tank? If you still have the A1 pump be aware that that A2 harness will not have the entire #77 electrical circuit for the electric fuel pump. That includes the oil pressure safety switch, the associated circuit breaker and the wiring to the fuel pump.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

exoilfld
G-Corporal
G-Corporal
Posts: 20
Joined: Fri Jul 15, 2016 1:33 pm

Re: solid state regulator

Post by exoilfld » Fri Jul 26, 2019 1:01 pm

I went with the a2 pump in the engine. I guess mine is going to be a combination a1/a2

exoilfld
G-Corporal
G-Corporal
Posts: 20
Joined: Fri Jul 15, 2016 1:33 pm

Re: solid state regulator

Post by exoilfld » Fri Jul 26, 2019 1:05 pm

I am having the heck of a time getting the harness routed under the dash. Any suggestions?

User avatar
W. Winget
LTC, U.S. Army
LTC, U.S. Army
Posts: 2760
Joined: Mon Dec 16, 2002 12:37 pm
Location: USA, Virginia, Carrollton
Contact:

Re: solid state regulator

Post by W. Winget » Fri Jul 26, 2019 5:59 pm

If it's sticking, use some conduit lube from Home Depot, etc. If it's not flexing, laying it in the Sun for a few hours may help. Also pre-flexing it (it is new) by bending it back and forth a little may soften up the resistance.
W Winget
Looking for 1918 Standard B 'Liberty' truck parts

Post Reply

Return to “M151's Technical Knowledge Base”

Who is online

Users browsing this forum: No registered users and 28 guests