2243 spark plugs

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2243 spark plugs

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2243 spark plugs

Postby Mark » June 4th, 2018, 7:48 pm

Will 2243 spark plugs work ok in a mutt? I guess they run a little hotter, but what exactly does that mean?
mark


1968 m274A5
1960 m151
1976 m151A2
1964 m416
1971 m416
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Re: 2243 spark plugs

Postby rickf » June 4th, 2018, 7:55 pm

They are one step colder, they may foul. I have not tried them but I have a bunch of them so I ought to give them a try.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
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Re: 2243 spark plugs

Postby Haas » June 4th, 2018, 8:25 pm

I have been running 2243s in an M38A1 for a number of years now without any problem, and I take the jeep on some pretty rigorous off-road trips. I would guess that they would work just as well in an M151.
1942 Willys MB "slat grille"
1943 Ford GPW
1953 M38A1
1952 M38A1
1951? M38
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1953 M37
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Re: 2243 spark plugs

Postby Mark » June 4th, 2018, 11:24 pm

thanks for the feedback
mark


1968 m274A5
1960 m151
1976 m151A2
1964 m416
1971 m416
Mark
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Re: 2243 spark plugs

Postby acudanut » June 5th, 2018, 1:04 am

A M38 has a different engine doesn't it ?
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Re: 2243 spark plugs

Postby rickf » June 5th, 2018, 7:09 am

Different engine and different engine design so really can't compare. What plugs does the M-38 call for?
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
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Re: 2243 spark plugs

Postby Haas » June 5th, 2018, 1:09 pm

The M38A1 does have a different engine, but if I'm not mistaken it still called for the same 2245 spark plug that the M151 uses. I would have to look it up again to be sure. I have one M38A1 with 2245s in it and one with 2243s in it. They both run fine, and I can't imagine that there would be too much trouble in an M151 either.
1942 Willys MB "slat grille"
1943 Ford GPW
1953 M38A1
1952 M38A1
1951? M38
1st run M151
1953 M37
Ford G8T
2 Ford GTBs
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Re: 2243 spark plugs

Postby rickf » June 5th, 2018, 3:45 pm

I don't know, the 151 engine is very finicky. If everything is not perfect they run like crap. 2 degrees off on the timing either way and it runs like crap, that is how close they are.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
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