A 76 probably has an egr valve bolted to the intake behind the carb. If it's got a bad stumble that's the place to start, pull hose off valve and stick your golf tee in the hose. Also a Q-Jet that might set in the shed all winter could have the power piston stuck in the down position. It's got two metering rods on a piston with a spring under it, at idle high vacuum holds the rods down in the primary jets, open the throttle= low vacum - spring pops the rods up giving it a quick rich fuel mixture. Used to find a lot of those pistons stuck, with air cleaner off seems like about 1/4" pipe sticking up frt. center of carb., should see a small bar through the middle, engine off should be able to push it down with a small screw driver and pop back up. Fuel filter isn't a bad idea. Push the throttle open while looking in the frt. barrels, should see two squirts to get an idea of what the accelerator pump does. But if it won't start now I don't think any of that would keep it from starting.
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Today's Featured Article - 12-Volt Conversions for 4-Cylinder Ford 2000 & 4000 Tractors - by Tommy Duvall. After two summers of having to park my old 1964 model 4000 gas 4 cyl. on a hill just in case the 6 volt system, for whatever reason, would not crank her, I decided to try the 12 volt conversion. After some research of convert or not, I decided to go ahead, the main reason being that this tractor was a working tractor, not a show tractor (yet). I did keep everything I replaced for the day I do want to restore her to showroom condition.
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