fuel tank A1 style

This is the place to get help with technical matters concerning your M151 jeep

Moderators: rickf, raymond, Mr. Recovery

Post Reply
Redlight
Sergeant First Class
Sergeant First Class
Posts: 253
Joined: January 17th, 2016, 5:38 pm
Location: Reading (Boston) Mass

fuel tank A1 style

Unread post by Redlight » May 9th, 2018, 10:53 pm

I have two fuel tanks, "A" has been out side of the jeep and is empty with little smell from inside.
"B" was in the jeep and it took a strap wrench to remove the cap. bag gas smell is inside. I removed tank and found about 2-3 gallons of liquid inside. I have a place to dispose of old gas so that problem is resoled.
Questions. 1) How do I remove fuel pump from inside of tanks.
2) is there a gasket around large plate in top of tank.
3) If the pumps are no good and I do not want to pay over $125 for new pumps, how do I draw fuel from tank? Ie leave pump in tank and use external pump or remove
pump and make pick up tube.
This is the start of the rusty traveler restoration. one step at a time one system at a time.
Thanks
Redlight

acudanut

Re: fuel tank A1 style

Unread post by acudanut » May 10th, 2018, 9:57 am

There is no fuel pump in either tank. You can make your own gasket or buy a new one.

User avatar
Surveyor
Terminal
Posts: 1092
Joined: November 13th, 2015, 3:56 pm
Location: Cajun Country

Re: fuel tank A1 style

Unread post by Surveyor » May 10th, 2018, 12:36 pm

acudanut wrote:There is no fuel pump in either tank. You can make your own gasket or buy a new one.
A1's have the electric fuel pumps... unless Cuda has first hand knowledge of these tanks in particular having the pumps removed.

1) Could use a standard a2 mechanical pump which replaces the vacuum pump on the side of the engine. Would need to adjust wiper vacuum lines off of the intake manifold and reroute gas lines,

2) Replace with a cheaper electric pump preferably in the 24v style such as the facet pumps (usually mounted in engine compartment/hidden away) or

3) Go for a fuel/vacuum pump combo if you can find one that fits.

Numerous threads on all three here... just try a search of "fuel pump."

Side note... I just discovered there is a portal page to this website portal.php :lol:
1960 M151 Run #1
"There is one nut on a M151 that is very difficult to remove....." - K8icu
"She ain't a Cadillac and she ain't a Rolls, But there ain't nothin' wrong with the radio" - Aaron Tippin
Image

acudanut

Re: fuel tank A1 style

Unread post by acudanut » May 10th, 2018, 10:58 pm

Your right surveyor. I was thinking of the A2 engines, that most of us seem to be using.

User avatar
rickf
General
General
Posts: 19741
Joined: November 26th, 2007, 1:28 pm
Location: Pemberton, NJ.

Re: fuel tank A1 style

Unread post by rickf » May 11th, 2018, 2:23 pm

You can leave the pump in the tank and draw through it as long as both check valves are free and not gummed up.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

Redlight
Sergeant First Class
Sergeant First Class
Posts: 253
Joined: January 17th, 2016, 5:38 pm
Location: Reading (Boston) Mass

Re: fuel tank A1 style

Unread post by Redlight » May 11th, 2018, 4:16 pm

Thanks

User avatar
rickf
General
General
Posts: 19741
Joined: November 26th, 2007, 1:28 pm
Location: Pemberton, NJ.

Re: fuel tank A1 style

Unread post by rickf » May 11th, 2018, 8:00 pm

Keep in mind that those valves being gummed up is the number one cause of the electric pumps not working. So if you run a separate electric pump and run some Seafoam or similar for a while try putting voltage to that original pump once in a while to see if it works. If it does not draw any power at all then it has a broken wire. Do not play with the wiring with the gas cap off, as long as the cap is on then there is not enough oxygen in the tank to cause a fire or explosion if the wires spark. That is how they get away with electric's in a gasoline tank. But if you have that huge gas cap off then there will be the potential to get a lot of air in there and all bets are off.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

Post Reply