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fuel injection - what to look for


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Hola! First post, getting a '77 280 from my uncle who has a nasty 240 383 cid conversion. The 280 is all stock is going with me to Texas in a few months. Car is original and we need to know what, where, if, and how to fix if there are any issues with the older FI systems. We will be tuning and getting it running in about a week. He's a good mechanic and I'm fair (mostly SBC and air-cooled VW exp). Anything to look for or watch out for tips are much appreciated, thanks!

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Hola! First post, getting a '77 280 from my uncle who has a nasty 240 383 cid conversion. The 280 is all stock is going with me to Texas in a few months. Car is original and we need to know what, where, if, and how to fix if there are any issues with the older FI systems. We will be tuning and getting it running in about a week. He's a good mechanic and I'm fair (mostly SBC and air-cooled VW exp). Anything to look for or watch out for tips are much appreciated, thanks!

 

How long has it been sitting? What does the gas smell like? If it has been sitting a while, and the gas is nasty, this is how I would proceed:

 

- Put a clear plastic filter between the tank and the pump (will keep crud from getting in your pump).

- Replace the fuel filter in the engine compartment.

- Remove as much fuel from the tank as possible. Most 280Z do not have a drain plug, so the best way to do this is remove the tank. But that is a lot of work. You can probably look inside with a light and see what the condition of the bottom of the tank is.

- Put a few gallons of fresh fuel in the tank.

- Remove fuel pump relay and jumper the socket so the fuel pump runs. Let the fuel pump run for a couple minutes to flush as much bad fuel from the fuel system as you can.

- Look at the clear fuel filter you put in to see how much crud it has filtered out.

- Put the fuel pump relay back in.

- See if she runs!

 

You may need to send the injectors out to be cleaned. You should also check the condition of the ignition system.

 

Pete

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The car has been sitting for around a year, we were planning on dropping the tank anyway cuz it's been outside covered for over a year in rainy Washington weather. We will be performing a tune-up, oil change, and fresh filters. It ran fine before he parked it, we were just looking for some of the little quirks or "make sure you check this" kinda things. Thanks for the tips! I'm new to fuel injection and Z cars. Eventually it will get get a 355cid 335hp Chevy small block. My dad is trying to talk me into a four speed (cheaper) but I want a T-5 5 speed. Later I want to take it all apart and redo everything: good suspension and brake upgrades, roll cage, and gauges, badboy 450hp small block, Quaife LSD, etc.

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