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    Have spark and fuel, can't get the rebuilt engine to start

    The machine shop set the valves
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    Have spark and fuel, can't get the rebuilt engine to start

    Engine info in case you can't see my signature: 1989 Maxum 2300 SC, I/O Engine: 7.4L, 454 CID, 330HP, Ser# 0C662618 https://www.mercruiserparts.com/7-4l-bravo-gm-454-v-8-1988-1991-0b7711 Transom Ser#: 0C793737 Mercruiser Drive, Bravo, Ser# 0C810971
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    Have spark and fuel, can't get the rebuilt engine to start

    You've all helped me get fuel and spark, but I can't get the engine to start now. The machine shop installed the internal moving parts, I put everything else on and installed the engine. Spark: Most recently I verified cylinders 1 and 2 are sparking by setting the spark plug and wire against...
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    How to Diagnose No Fuel at Carb 7.4

    The fuel pump wasn't working because the small overflow connection was clogged and created too much pressure in one side of the pump so it couldn't operate. I cleaned out the clogged connection and then the pump worked. I also cleaned the epoxy out of the pickup tube, replaced the lines going...
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    How to Diagnose No Fuel at Carb 7.4

    In case anyone else comes to this thread, I think it's correct that you can blow through the fuel pump from the intake side to the fuel-out side. The one way valve prevents the fuel from going back out the intake and stops fuel from going into the fuel-out side, but air would pass all the way...
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    How to Diagnose No Fuel at Carb 7.4

    I took the fuel pump off. I can freely blow air into the inlet and thru the out side so I guess that means it has failed, but looking inside the gaskets and everything seems to be in decent shape to me. Although I don't know exactly how it's supposed to look:
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    How to Diagnose No Fuel at Carb 7.4

    Mine is just a plate 90 degree elbow, no anti-syphon valve. It looks like the pickup tube was cut or broken where it connects to the elbow and then LOTS of epoxy was used to reattach it. I just ordered a new pickup tube, 90 degree elbow, and anti-syphon valve that I'll have tomorrow. I don't...
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    How to Diagnose No Fuel at Carb 7.4

    Yes, the # 5 component in the image below was installed behind the fuel pump. I also put a new gasket on it.
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    How to Diagnose No Fuel at Carb 7.4

    I put about 2 oz of fuel into the carb, turned it over for about 5 seconds. It sputtered a bit, and seemed like 1 or 2 cylinders fired off, but definitely didn't start. The mating surface under the fuel filter is clean and smooth. I removed what looks like my pickup tube (Image attached) where...
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    How to Diagnose No Fuel at Carb 7.4

    For this do you think it matter if I put the gas directly into the primary or the secondary barrels? (Large vs small) I assume primary is fine. Any tips for how to connect a remote tank to the fuel pump since it has a threaded connection? I'm looking at getting an outboard remote fuel tank like...
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    How to Diagnose No Fuel at Carb 7.4

    This is the pin I pressed down on in step 4 above, to see if fuel would squirt out under the carb plate:
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    How to Diagnose No Fuel at Carb 7.4

    Engine information in my signature. I'm getting no fuel at my carb and so the engine won't start, what are my next trouble shooting steps? I did an engine rebuild. All fuel components sat for a couple years. I have the original carbs, fuel pump, and fuel lines back on. What I've done so far...
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    No Spark, checked battery and coil, what next?

    This description is helpful. I have the bullet connectors like this describes. I'll probably text these even though I have spark just to make everything has enough voltage
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    No Spark, checked battery and coil, what next?

    I found the issue. I had the purple wires connected to the negative posts instead of the positive post. And the other wires on the coil were swapped too. I have spark now. One step closer to getting it fired up after the rebuild.
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    No Spark, checked battery and coil, what next?

    Also many instructions I've found online say to test the wires going into the distributor but they're buried in epoxy and not accessible without cutting.
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    No Spark, checked battery and coil, what next?

    Photos of the distributor:
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    No Spark, checked battery and coil, what next?

    I'm not getting any spark and I'm not sure what to trouble shoot next. How I determined I have no spark: I took out the cylinder 2 plug, put it back into the spark plug wire, set the tip against the exhaust manifold riser bolt and turned over the engine. My trouble shooting steps so far: 1)...
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    What fuse or blown component would prevent starting?

    Found the fuse that connects to the start switch and it was blown. Had a 15amp in it, so I put the 20amp cigarette lighter fuse into it and now everything lights up again and it turns over. Thank you for getting me moving forward with this repair. Not that it matters now, but the alternator...
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    What fuse or blown component would prevent starting?

    I was trouble shooting my no-spark condition on my engine and I think I blew something. I performed the following procedure to test the coil: 1) Inserted a spark plug directly into the coil wire end that would normally connect to the distributor cap. 2) Placed spark plug tip against manifold...
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    Assessing motor for rebuild or replacement

    The background: Made a really hard stop in the boat with too many people in the back which resulted in the engine starting to make a very quiet tapping noise. Over the next 15 minutes it turned into a loud clacking noise, hard to start, and really poor power from the engine. I limped it 2 miles...
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