Correct Spark Plugs?
-
- Jeep Heaven
- Posts: 49841
- Joined: Sun Mar 02, 2008 12:37 pm
- Location: Proving Ground
Re: Correct Spark Plugs?
The 10 packs do not need to be sealed, it is the individual spark plug that needs to be preserved. There are 10 to a box and a Jeep only uses 4, there may be instances where only one spark plug is needed to replace a bad one. The Firestones used to come packed in crates that I remember to be approximately 24"-30" square with a tarpaper like barrier lining the crate. It is a possibility that Firestone may have made more spare sparkplugs than the OEM suppliers. 70 years have passed since the war, plenty of time for civilian consumers to use up much of the surplus examples.
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
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
- lucakiki
- G-General
- Posts: 17578
- Joined: Sat Feb 15, 2003 7:18 am
- Location: Torino, ITALY
Re: Correct Spark Plugs?
After 9 pages, one might legitimately wonder if anything changed in the available information on correct spark plugs for use in a WWII jeep, be it for judging purposes or for one own's pride in owning the correct plugs.
I wish someone would volounteer and use up a little more bandwidth for a concise recap.
Brand and time frame for MB and GPW.
I wish someone would volounteer and use up a little more bandwidth for a concise recap.
Brand and time frame for MB and GPW.
Luca
WillysMB#344142 6-19-44 Navy N.S.Blue Grey
45 Bantam T-3 #57248 1-10-45
42 Willys MB-T #13560 11-42
43 Willys MB-T # 25417 4-43
Way too many WWII military tools,hopefully thinning down,and way too many posts...
__________________________________________
_____________________________________________
__________________________________________
WillysMB#344142 6-19-44 Navy N.S.Blue Grey
45 Bantam T-3 #57248 1-10-45
42 Willys MB-T #13560 11-42
43 Willys MB-T # 25417 4-43
Way too many WWII military tools,hopefully thinning down,and way too many posts...
__________________________________________
_____________________________________________
__________________________________________
- Chuck Lutz
- Gee Addict
- Posts: 26829
- Joined: Wed Jun 28, 2006 7:00 am
- Location: Jeep Heaven
Re: Correct Spark Plugs?
Willys:
1) up to 1/13/42 the QM-2
2) @ 1/13/42 a "CHANGE" to AN-7
3) @ MB 170xxx (August 1942?) the Champion J-9 is "optional"
( FILO/LIFO may have caused overlaps)
Ford:
1) QM-2
2) No info as of yet on Ford making a "CHANGE" to the AN-7
3) No info as of yet on Ford also making the Champion J-9 "optional"
Firestone F-40 is a gov't replacement (not Ford/Willys)
1) up to 1/13/42 the QM-2
2) @ 1/13/42 a "CHANGE" to AN-7
3) @ MB 170xxx (August 1942?) the Champion J-9 is "optional"
( FILO/LIFO may have caused overlaps)
Ford:
1) QM-2
2) No info as of yet on Ford making a "CHANGE" to the AN-7
3) No info as of yet on Ford also making the Champion J-9 "optional"
Firestone F-40 is a gov't replacement (not Ford/Willys)
Chuck Lutz
GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
Bantam T3-C 1947
GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
Bantam T3-C 1947
- Mark Tombleson
- MZ Radio Operator
- Posts: 9837
- Joined: Wed Dec 11, 2002 7:58 pm
- Location: Selah, Washington
Re: Correct Spark Plugs?
I want to bring this back up as we have new guys wanting to know what the correct spark plugs are!
MB-NAVY-MZ-1 352625 - 07/20/44 (DOD est.)
U.S.N. 133818
2nd place Restored Class 2008 Portland Convention
MVPA Hall of Fame - 2013
U.S.N. 133818
2nd place Restored Class 2008 Portland Convention
MVPA Hall of Fame - 2013
-
- G-Sergeant Major
- Posts: 150
- Joined: Mon Mar 17, 2008 1:49 pm
- Location: Netherlands
Re: Correct Spark Plugs?
According to Delmar Roos in Lloyd White's book Volume 4 page 91, spark plug designation was changed from QMC-2 to AN-7 on 8-20-43 (start in production).
-
- G-Lieutenant Colonel
- Posts: 1089
- Joined: Wed Dec 23, 2009 6:21 pm
- Location: Fort Riley, KS
Re: Correct Spark Plugs?
Any new information on the GPW spark plug timeline?
1-44 Ford GPW (161784) USA 20439314, USN 87559
5-4-45 Bantam T3 (68871) USA 0948627
5-4-45 Bantam T3 (68871) USA 0948627
-
- Jeep Heaven
- Posts: 49841
- Joined: Sun Mar 02, 2008 12:37 pm
- Location: Proving Ground
Re: Correct Spark Plugs?
I have sold dozens of surplus Firestone F-40 Sparkplugs for 4 Cyl Military and CJ application over the decades. We started off with an approximate 30" square crate of them.
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
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
-
- Jeep Heaven
- Posts: 49841
- Joined: Sun Mar 02, 2008 12:37 pm
- Location: Proving Ground
Re: Correct Spark Plugs?
I have sold dozens of surplus Firestone F-40 Sparkplugs for 4 Cyl Military and CJ application over the decades. We started off with an approximate 30" square crate of them.
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
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
- Farrell Fox
- banned
- Posts: 4847
- Joined: Sat Jan 17, 2009 2:17 pm
- Location:
Re: Correct Spark Plugs?
[Post Deleted By Author]
Last edited by Farrell Fox on Sat Oct 26, 2019 11:36 am, edited 1 time in total.
4th Tank Battalion, 4th Marine Division
M1A1 Main Battle Tank Mechanic
M88 Armored Vehicle Recovery Operator
AVLB Operator
M1A1 Main Battle Tank Mechanic
M88 Armored Vehicle Recovery Operator
AVLB Operator
-
- Jeep Heaven
- Posts: 49841
- Joined: Sun Mar 02, 2008 12:37 pm
- Location: Proving Ground
Re: Correct Spark Plugs?
The Spark Plug has a very basic purpose which is to provide an Air Gap for a spark to jump.
Did you know that the "AC" Spark Plug brand name stands for Albert Champion. And you all have heard of Champion Spark Plugs.
Did you know that the "AC" Spark Plug brand name stands for Albert Champion. And you all have heard of Champion Spark Plugs.
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
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
- Nikko
- G-Brigadier General
- Posts: 2171
- Joined: Thu Jan 06, 2005 3:01 am
- Location: Oslo Norway
- Contact:
Re: Correct Spark Plugs?
Hi Chuck
This spark plug info is great for al of us.
Enny more info on the spark plugs i am thinking of the
CHAMPION J 9 inn Blue boxes if i remember right
Cheers From The Cold North
Nikko
This spark plug info is great for al of us.
Enny more info on the spark plugs i am thinking of the
CHAMPION J 9 inn Blue boxes if i remember right
Cheers From The Cold North
Nikko
1943 GPW 135099
1949 Spen 1/4 t trailer S/N 158
and a lot of nuts and bolts
1949 Spen 1/4 t trailer S/N 158
and a lot of nuts and bolts
-
- G-Captain
- Posts: 749
- Joined: Fri Aug 12, 2016 9:30 pm
- Location: teignmouth Devon UK
Re: Correct Spark Plugs?
A little more information on the Firestone F-40 'Polonium' plugs - according to 'anything radioactive' website (sorry can't give a link) they actually were radioactive using Polonium 210 - this had " a half life of 138 days so after 3 years virtually all the radioactivity had decayed and turned into a non radioactive isotope of lead"
So they should be safe after 80 years then !
Barrie
So they should be safe after 80 years then !
Barrie
GPW 101005 DOD 3-2-43 20207773 (actual) Louisville
-
- G-Brigadier General
- Posts: 2263
- Joined: Wed Feb 07, 2007 3:34 am
- Location: Santiago-RS-Brasil
Re: Correct Spark Plugs?
Jeep Willys MB DoD dec,16 1942 s/n:196275
Dodge B3-B 4x2 1952 s/n:90099559
CCKW 353 Banjo 1944 s/n:309623
Dodge B3-B 4x2 1952 s/n:90099559
CCKW 353 Banjo 1944 s/n:309623
- JAB
- G-General
- Posts: 9649
- Joined: Fri Dec 13, 2002 5:25 pm
- Location: under the jeep in North Prairie, WI
Re: Correct Spark Plugs?
Thanks Fernando! I never understood hot/cold sparkplugs until that picture!
-Jeff
GR8GPN2U!!!
GR8GPN2U!!!
-
- Sergeant Major of the Gee
- Posts: 303
- Joined: Thu Jun 03, 2010 5:37 pm
- Location:
Re: Correct Spark Plugs?
On an odd side note. The military f-40s come in boxes of 10. Could that imply that it was 2 sets for 2 jeeps counting the for a spare?
Who is online
Users browsing this forum: Google [Bot], Google Adsense [Bot] and 76 guests