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Did a quick search on "fuel pump" in eBay and you have a mechanical fuel pump, and no, it won't push any fuel toward the carb until the engine turns over.
It's really easy to replace a mechanical fuel pump, just 2 bolts. One frustrator can be if the engine is stopped right where the lobe on interior engine goodies is where it's pushing the bent arm up... The spring on the bent arm is surprisingly strong. You just rotate the engine until lobe isn't pushing on the bent arm and the fuel pump settles into its machined mounting place without hassle.
You wouldn't be able to tell much about the carb's operations from the exterior. Back in the day, you could buy re-build kits with orifices, gaskets, float and float valve, needle valve(s) and the like, so you would disassemble the carb, clean out all the passages, put the new goodies in and button it back up. I see there are a couple of rebuild kits on eBay for the 74 Hilux.
HOWEVER, first, get the engine to turn over. Might be just a battery or a charge that's needed.
Then, change the fuel filter.
If you can, empty the gas tank and refill with fresh gas.
To check the fuel pump, first identify it. It will be attached to the side of the engine.
Go to eBay and enter "74 hilux fuel pump" and look at the pictures. The part with the bent arm and spring goes into the side of the engine, the part that's kind of a round can with two fuel line connectors is what you see outside. To check flow, you take the fuel hose or line off the "out" orifice of the fuel pump. It looks as though you've pulled the rubber hose off the "in" orifice. There's no flow there.
Trace the fuel line back from the carb to the fuel pump -- that fuel line is the one you take off at the carb to see if gas is flowing into the carb.
You'll need full instructions on the carb rebuild, if a rebuild is what you need. Japanese carburetors in the 70s were precision instruments, like Swiss watches.
There's a "1974 Toyota Hilux Genuine OEM Repair Manual" on eBay. You don't want the truck brakes supplement or the overhaul engine book, you need the general book... I *think* - since the carb might be in the engine overhaul book. Check with the seller to see that the carburetor is in the book you're buying.
You're going to need that manual. Aftermarket ones (Haynes, Clymer, etc.) won't be enough for your adventures.
01 Avalon XL
03 Avalon XL
Last edited by OleAvalon; 05-06-2019 at 05:08 PM.