That's a great looking truck! ;-)
It is a 1927 one ton truck, Model LM. This should jibe with the information on the Car Number plate that is on side of the passenger's seat. I can see the plate in one of the photos but can't read it. If you post the info from that plate, we can give you more info about the truck.
Some things I noticed in the pics are:
- There are six wheel keeper nuts on each wheel rim (the 1/2 ton truck have only four), which makes this a one ton truck.
- The engine does not have push rod covers (those were on the '28 motors).
- The engine has a single-port exhaust manifold (in '28, there were two ports).
- There are no brakes on the front wheels, which further supports that this is a '27.
- The transmission is a four speed because it has the reverse gear unlatch lever on the shifter. The four speed transmissions were an option in '27 and then became the standard tranny in '28. The four speed shifting pattern is an H. To get into reverse, pull the little latch up and shift all the way to the left and pull back towards the seat. When you don't pull the unlatch lever up, you can only go through the four forward gears, in the H pattern.
I would use the original vacuum tank fuel delivery system. I've been driving '27 and '28 trucks for over 30 years with the vacuum tanks and have only had to open one up and clean it out once in all that time. Chances are that all you have to do is prime the tank with some gas to get it operational. I put a 1/8" NPT plug in the inlet gas line for priming purposes and use a modified Coke bottle to do the filling. To fill the bottle, I installed a valve under the gas tank. See the pics below. If you let the truck sit for quite a while, the gas evaporates out of the tank and the tank will need priming the next time you try to start the truck.
You might open up the top of the vacuum tank and check to see if there is any crud at the bottom of the tank. Also, there is a small brass screen inside the gas inlet to the carb that might need cleaning. I ran into these issues in 2021 with my '28 Canopy Express. Here's that story:
Fuel Problems with my '28 TruckCheers, Dean