luism12lm

I bought an ‘84 GSL-SE w/out the fuel tank installed. I put the original fuel tank back w/new fuel tank filter (inside) and new fuel filter (outside). I tried to start the engine, the engine cranks but not start. The dash fuel gage doesn’t work and there is no clicking on the fuel pump. I looked at the fuse box under the dash board and they look fine. What else can it be? Any help will be appreciated.

Thank you,

Luism12lm

gypsyvk

The fuel pump wont run with just the key on, only when running or cranking. Unhook the fuel line in the engine bay and run it into a container then crank the engine to see if the pump is working. If it is not working and the fuses are good you may have a bad ignitor or relay.

trochoid

iTrader: (6)

Check the FSM, there is an open plug end in the engine bay that can be jumpered so the fuel pump will run with the key in the on position. If your fuel gauge doesn't work, amke sure there is enough fuel in the tank and recheck the the routing of you fuel lines. If you connect the cut/check valve on the frame rail backwards, you will not get any fuel.

luism12lm

1. The “open plug end” that you’re talking about, is it the white one next to the air filter box?

2. About the fuel gage, I put about 2 to 3 gallons on a complete empty fuel tank. About how much more would I need?

3. I replaced the cut/check valve for a new one and now that you mention that I not sure if I put it back correctly. Does any one have a photo or diagram of the cut/check valve in the right position?

Thank you,

grady95

For what it's worth, I am also starting to resurrect an old RX7. I am having similar fuel supply troubles, so maybe we can keep each other informed!

Yes, it's the white one with the rubber boot on it in front of the air box. That's where you can jumper the system to make the pump run while the key is in the on position.

There is a fuse which controls power to the pump. I can send a photo if you need it.

My car sat for ten years. The fuel tank was full of varnish and corrosion. It was so bad that I needed to just replace it. The replacement tank is due here from California in the next few days.

I pulled my pump right out by getting under the car and releasing it from the frame mount. I bench tested it and all it did was to make a clicking sound when battery power was applied. It too was probably filled with old varnish and corrosion. The pump has been replaced.

At the supply end of the pump, I discovered a small, wire screen, cone shaped filter element in the fuel feed line which obviously removes sediment from the fuel before it actually enters the pump. It too was absolutely chocked full of corrosion but some Kastle Dragon Fire spray cleaned it up nicely and it was reused. Probably any good injector cleaner would do the same. There's no way that adequate fuel pressure could have possibly been established with this thing goobered up like this. You might want to check that also.

trochoid

iTrader: (6)

Cut/check valve has a flow arrow on it, hard to see sometimes. Complete fuel pluming diagram is in the FSM.

jezek301

I just went through the same problem I got a different gas tank for my SE and it turns out that it had alot of junk inside that clogged everything up. I had to replace the fuel pump, filter, and I have to get my tank professionally cleaned. You also might want to check the condition of the tank.