Inner tube question

a place to discuss anything of interest to owners of M151 jeeps

Moderators: rickf, moose53, Mr. Recovery, raymond

Post Reply
M37
Sergeant
Sergeant
Posts: 60
Joined: September 5th, 2018, 11:41 pm

Inner tube question

Post by M37 » March 31st, 2021, 1:44 pm

I am putting new tires on and I wanted to get new tubes at the same time. I am curious to learn what everyone using. I’m a bit overwhelmed as to what I will need.

I have read that it needs to be a 700-16 tube with an offset tr-15 valve stem. Are there any other requirements? I have read South Korean and Us Made are going to be good quality.

I found a group of 5 tubes on an eBay auction from seller cvmjeeps , which seem to meet size and stem requirements. Have any of the members here purchased these, if so were you unhappy with anything about them. They are $69.95 + $21.90 shipping. The ad doesn’t say where they’re re made. I have asked the seller but haven’t received a response yet.

I have 3 new US made tubes marked in ink, 5.50/6.00/6.50-16. Below that they are marked 6.00/6.50/F78-16LT. They are very close to the 700-16 designation, would these work, or are they undersized. They have offset tr-15 stems. Since they are US made and I already own them, I figured I’d ask all you folks if those would work.

Thanks all!

Joe

rickf
General
General
Posts: 17830
Joined: November 26th, 2007, 1:28 pm
Location: Pemberton, NJ.

Re: Inner tube question

Post by rickf » March 31st, 2021, 1:55 pm

If you are going to use tubes they need to be the right size. You could get by with the 6.00/6.50 in a pinch but I would not recommend it for all four tires permanently.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

M37
Sergeant
Sergeant
Posts: 60
Joined: September 5th, 2018, 11:41 pm

Re: Inner tube question

Post by M37 » March 31st, 2021, 3:12 pm

Dang Rick! That was a really fast response time! Thank you!

Is there anything else that I need to pay attention to as far as specifications, that you would recommend. I mainly wanted to make sure I got the right item by size, stem and quality.

Thanks,

Joe

rickf
General
General
Posts: 17830
Joined: November 26th, 2007, 1:28 pm
Location: Pemberton, NJ.

Re: Inner tube question

Post by rickf » March 31st, 2021, 3:49 pm

What tires are you running? Check the sidewall and make sure they don't say tubeless on them. If they do then you could run without tubes just by installing valve stems in the wheels as long as the inside of the wheels are in good shape and not rusted around the rivets. I usually recommend painting the Inside center of the rim over the rivets with a good epoxy paint if you are going tubeless. If you are going with tubes be sure to get the correct flaps also.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

M37
Sergeant
Sergeant
Posts: 60
Joined: September 5th, 2018, 11:41 pm

Re: Inner tube question

Post by M37 » March 31st, 2021, 4:30 pm

I am going to be running the Coker Tire 7:00-16 Firestone NDCC tires. I know these aren’t the best stopping and driving tires but I am shooting for a Vietnam era military look. I have the early Magnesium wheels for this vehicle, April 1962 Ford. I may decide to use the steel wheels later on though. If I do, they will be sprayed with epoxy to seals them.

I wasn’t aware flaps were used in the M151 wheels. I’ll have to source some.

M37
Sergeant
Sergeant
Posts: 60
Joined: September 5th, 2018, 11:41 pm

Re: Inner tube question

Post by M37 » March 31st, 2021, 5:56 pm

403CAC7E-F5D8-412E-869E-1619699282CA.png
Testing, first time attaching a photo by the new method.

rickf
General
General
Posts: 17830
Joined: November 26th, 2007, 1:28 pm
Location: Pemberton, NJ.

Re: Inner tube question

Post by rickf » March 31st, 2021, 9:12 pm

Testing success!
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

Mark
Colonel
Colonel
Posts: 1701
Joined: September 19th, 2009, 11:33 pm
Location: South Dakota

Re: Inner tube question

Post by Mark » April 2nd, 2021, 4:25 am

I can remember there was rubber layer insert on the inside of the rim, the tube went against when inflated.I guess it helped protect the tube
mark


1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416

rickf
General
General
Posts: 17830
Joined: November 26th, 2007, 1:28 pm
Location: Pemberton, NJ.

Re: Inner tube question

Post by rickf » April 2nd, 2021, 9:29 am

That is the flap
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

Mark
Colonel
Colonel
Posts: 1701
Joined: September 19th, 2009, 11:33 pm
Location: South Dakota

Re: Inner tube question

Post by Mark » April 2nd, 2021, 9:52 am

Ya I see now you mentioned it before, but when I read I skip words so never seen where you mentioned it before.
mark


1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416

acudanut
USMC Gunny
USMC Gunny
Posts: 1248
Joined: April 12th, 2011, 12:50 pm
Location: Land of OZ, KANSAS

Re: Inner tube question

Post by acudanut » April 3rd, 2021, 10:10 am

I am sure the tire shop mounting these tires with tubes should have them. I Live in Farm Country. All shops have these, however I don't think you need flaps with a 20 psi tire....imo.

User avatar
m3a1
Brigadier General
Brigadier General
Posts: 2994
Joined: August 7th, 2014, 6:36 pm

Re: Inner tube question

Post by m3a1 » April 3rd, 2021, 12:08 pm

There's the thing about flaps. Consider what the cross section of a tire mounted on a wheel looks like....

ST_2.0.jpg
ST_2.0.jpg (34.24 KiB) Viewed 172 times

Now consider that, when inflated, your inner tube looks like a donut whereas, the interior space of that wheel/tire assembly is very irregular. Now, I know what you're thinking...

Yes, without flaps, your inner tube will conform to that space and you can get away with it provided you don't demand too much of your tires (and provided you are using good quality tubes) but in doing so, you are asking more of your inner tube than it is designed for.

Just 'getting away with it' is like jumping out of an airplane without a parachute. Things will be fine....until they ain't.

(1) Without flaps, you are asking your tube to stretch into a very irregular shape while inflated, which is hard on the tube during heavy use or, when airing down or, during those unfortunate times when there is a leak and air pressure changes unexpectedly.

(2) Without flaps, you are asking your tube to lock your tire's bead to the rim by its mere presence in the space between the beads which is really like sending a boy to do a man's job.

Folks, a rubber tube filled with air simply doesn't do any of that well. Remember, you are enjoying the experience of using 50s, 60s, 70s technology on your M151 so, do it right. Be sure you have the right kit.

A flap serves to protect your tube by creating a space that conforms to the tube's natural inflated shape -and- the flap is shaped in such a way that your tube's inflated shape, even at lower pressures, produces a very real mechanical advantage when it comes to locking that bead against the rim. It accomplishes that by the placement of a good hefty chunk of rubber that fills the gap between the beads which is then firmly held in place by the tube, even if it is inflated with only a minimum amount of air. They are not Bead Locks per se, but in a limited way, they do serve that purpose (and do it well).

Remember, with the M151 series of truck, you are operating a vehicle that really hates sudden changes in direction and is more than willing to roll over. That calls for good wheels and tires that stay together and hold air. Sounds simple and is simple....provided you have flaps.

So, if your vehicle's design calls for flaps. USE 'EM!

Cheers,
TJ

Post Reply