Help on Leece Neville Regulator

1950 - 1952, M38, questions, discussions, regarding anything related to the M38.
Post Reply
dpcd67
G-Lieutenant General
G-Lieutenant General
Posts: 4684
Joined: Mon Jul 25, 2011 4:41 pm
Location: Iowa

Help on Leece Neville Regulator

Post by dpcd67 » Thu Jan 25, 2018 5:12 pm

Can anyone give a short tutorial on the Leese Neville 24 volt, 25 amp regulator? It is something I never saw but I want to learn about them. Like, will they work on an M38 and were they ever retro fitted say, during a depot overhaul? Are they solid state or mechanical? What years were they used? Or course, they are not OEM. And any other info that might be interesting about them.
U. S. Army 28 years.
Armor Branch

User avatar
muttguru
G-Colonel
G-Colonel
Posts: 1450
Joined: Fri Jul 18, 2003 12:46 pm
Location: Lil' ol' England
Contact:

Re: Help on Leece Neville Regulator

Post by muttguru » Fri Jan 26, 2018 3:48 pm

dpcd67 wrote:
Thu Jan 25, 2018 5:12 pm
Can anyone give a short tutorial on the Leese Neville 24 volt, 25 amp regulator? It is something I never saw
I've seen the "breadbox" 25-amp regulators (Auto-Lite and Delco-Remy). I've seen the 25-amp solid-state replacements for the breadbox types, such as those built by Leland Airborne Products. I haven't seen a Leece-Neville 25-amp regulator.
There is a Leece-Neville 100-amp regulator (carbon pile) model 3392R12P as well as a solid state version (model 5027RC). These are for high-amperage special purpose vehicles, not your everyday 25-amp vehicles.
Does this help?
Ken
Contact address - muttguru@aol.com
Thoughts for 2018 - Doing nothing is ALWAYS an option

Ben Dover
Gee Addict
Posts: 42260
Joined: Sun Mar 02, 2008 2:37 pm
Location: Proving Ground

Re: Help on Leece Neville Regulator

Post by Ben Dover » Fri Jan 26, 2018 4:48 pm

Yes, some were installed at support units in all of the M-Series earlier 50's-60's trucks having the 25 Amp system. They are a throw away thing that is trouble free. The Leece Neville Solid State 24V 25 Amp Voltage Regulator dates back to at least late 60's. The change change from conventional to Solid State on the M-38/M-38A1 requires installation of a Batt/Gen Indicator as the circuitry for an Ammeter is not in the SS VR. Normally a #27 wire from the Instrument Cluster Spider is used to power the Batt/Gen Gauge. The SS VR is 100% reliable and will normally last forever while needing no adjustment. Other brands of the 25A 24V Solid State Reg are Singer, DC Electronics, etc. I have changed my own M-38A1 to the solid state. it eliminates battery boil over issues that may come from tired conventional Voltage Regulators.
There is a little more to this simple change, will leave it for others who may want to pitch in. :wink:
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

dpcd67
G-Lieutenant General
G-Lieutenant General
Posts: 4684
Joined: Mon Jul 25, 2011 4:41 pm
Location: Iowa

Re: Help on Leece Neville Regulator

Post by dpcd67 » Fri Jan 26, 2018 7:08 pm

Good; thanks; that helps a lot. I always wanted to use a SS regulator because they are more reliable. I just never heard of a Leece Neville.

But you said there is more to the change from an Auto Lite; what does it take?
thanks.
U. S. Army 28 years.
Armor Branch

Post Reply

Return to “M38 Technical Knowledge Base”

Who is online

Users browsing this forum: No registered users and 4 guests