1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

GSL-SE issue resolved..you may have same probelm!!

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Old 06-30-08, 09:48 PM
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I think it's probably from the tank. Rust and dirt settles to the bottom and isn't always obvious until you drain the last 1/2 gallon or so.
Old 06-30-08, 10:09 PM
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wow. good info in here. hope its in the archive
Old 12-08-08, 12:25 PM
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UPDATE:

Chris' car has been back together for quite awhile with the newly cleaned and sealed tank. Running great now.

I'm currently helping another rotorhead with his SE. This car is getting a full S5 NA swap. It has been sitting for about 7 years or so and the tank is quite nasty. The pickup tubes were pretty clean internally, but the sock was completly clogged with crap.

You can see how much crud as in the tank. There is still more in there. I'm going to clean/seal this tank like Chris did on his. I have noticed a couple pinholes on the top of the tank due to rust. The sealer should take care of that. I'll post the restored tank pics when done. I'm also replacing fuel filter, all fuel lines, clean injectors, and replace fuel pump. It'll have a fresh fuel system when I'm done with it.



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Old 12-08-08, 02:14 PM
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Setting off a camera flash in a fuel vapor environment might not be the safest thing to do...
Old 12-08-08, 04:21 PM
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you're no fun!

Haven't blown up anything yet...but you should smell my garage at this point. Stinky old gas..
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Old 12-09-08, 11:18 AM
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Hi, my GSL-SE acts like it`s out of gas at about the time the gas lite comes on. When I get gas it only takes about 12 gal. to fill up. Sounds like I`m gonna be pulling the tank...which way do the posts point when the ports are open on the 6-port? Mine don`t move and I don`t have much top end so I took them off and will wire thjem open. I have a new exhaust system on the porch so I can make it right after I get that on.
Old 12-09-08, 11:43 AM
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just a heads up! On my 85 SE I had the same issue with rust in the tank (indiana+winter=salt=RUST!) so I pulled the tank and replaced it with a spare but the only reason I ever found out my tank was full o **** was from clogged injectors! woohoo! I cleaned the injectors, replaced the tank, 2 new fuel filters, and double checked my pump. I have one filter before the fuel pump and one in the engine bay now. shortly after all that work my fuel sending unit went out! so my fuel level was determined by sharp turns for a while haha.
Old 12-09-08, 03:33 PM
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Sounds like a lot of us are having the same fun stuff going on. I ordered the KBS system that cjf used. It'll be here tomorrow. I'll take some pics once I'm done.

I pulled the tank on mine a few months ago just to make sure that I didn't have anything like this going on. I was expecting atleast a bit of sediment, but my tank was spotless. My car spent it's whole life in Oregon and Cali and has only been here in VA for about 2 years.
Old 12-09-08, 07:01 PM
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My SE had tags that were from 1999 so I know it`s sat up for a while. I want to open the aux. ports and tie wrap them open but I don`t know which way to turn the arms that go to the actuators when I remove them. There are supposed to be stops for that but they aren`t there. Which way do they angle for OPEN? Like: 3o`clock front and 9o`clock rear, or 12 o`clock on both, 6 o`clock both??????
Old 12-10-08, 11:31 AM
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Well, I guess no one freaking knows how they angle...by the way, my understanding of the exhaust pipe plumbing is thst the RX-7 doesn`t completely burn all the fuel, etc., that is coming out of the exhaust. The air pipe going to the cat is to PROVIDE air not get pressure so as to complete the burn. The smaller pipe coming back bleeds some of this pressure to give it to the actuators and probably something else. That`s why your emmissions get bad when it is removed. Thew exhaust is REALLY hot so the rubber hoses would last maybe 20 seconds...
Old 12-10-08, 01:36 PM
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Leave the actuators on and just push the actuator rods down and wire them like that..or you can pull the intake and remove the sleeves, then it doesn't matter how the rod is. With the actuator pulled down, the pins should be at like 7 o'clock on the rear and 5 o'clock on the front.

Really you should ask this in another thread or just search. This isn't related to this thread..that is why you haven't been getting a response.
Old 12-13-08, 12:11 PM
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OK, thanks for the advice...there are so many pages on here that I just used the first one handy...
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Old 08-03-23, 08:25 AM
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It was me! Lol

Originally Posted by gsl-se addict
Could be. He did say it was a nothern car. Also, it had been sitting, but I imagine that was because it had this problem and the PO didn't know how to fix it. I'm doing suspension work and such on my SE currently. I don't believe that I have this issue, but I'll drop the tank while I'm at it just for kicks. My car is a west coast car, and I don't have any exterior rust. Even when I replaced my fuel level senser (usually impossible because the little screws rust up), was no problem for me as mine had no rust. It will be interesting if I see the same thing.

Chris had drained the tank of the old fuel. He said there was a bit of sediment, but no real rust to report. I should have brought the camera and taken a pic. You would not believe how clogged it was. It was so packed that it was hard to jam a small screwdriver through it to break up the clog. No wonder she was starving for gas.

If you follow the FSM, you will not find this problem as they don't tell you to do a volume test (only a static pressure test). The pump and regulator pressure checked out. There must have been just enough flow allowed to return to the tank to allow for regulation (at idle). This is mainly due to the fact that the pickup was really clogged too (otherwise pressure would have been too high).

This is another example of how taking things step-by-step, you can eliminate possible problems. Once we found the low flow at the engine, we tracked it backwards until we had pinpointed the problem.
hey Kent

Wow..this post came up cause i was javing a fuel issue...same as back in 2008...diff car...lol
I now recall thos post so, I am sure I have a clogged fuel line or crap in the tank. I will drop tank cause the car did sit 16 years.

By the way, hope Kent is still around...great guy and great r x7 mind..hope you will respond kent!
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Old 08-16-23, 05:50 PM
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Yeah. I was around back then too. Here is the deal: The GSL SE has a little teeny fuel filter before the fuel pump. It is so small it is INSIDE THE beginning of the pump. So the first thing to try, is just drop the whole pump assembly and bracket at the same time. Take the whole thing out to the side, undo hoses and start gently poking through the hoses. There is also a check valve ball in there at the output, and after you remove the ends of the pump you can blow through it backwards. (can't find my pics)

Note the big fuel filter is to protect the injectors, not the fuel pump.

Last edited by hellabad; 08-16-23 at 05:53 PM.
Old 08-16-23, 07:58 PM
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Originally Posted by hellabad
Yeah. I was around back then too. Here is the deal: The GSL SE has a little teeny fuel filter before the fuel pump. It is so small it is INSIDE THE beginning of the pump. So the first thing to try, is just drop the whole pump assembly and bracket at the same time. Take the whole thing out to the side, undo hoses and start gently poking through the hoses. There is also a check valve ball in there at the output, and after you remove the ends of the pump you can blow through it backwards. (can't find my pics)

Note the big fuel filter is to protect the injectors, not the fuel pump.
I saw that little filter stuck in on of my hoses clogging it up...the little filter was no good so, I had to put it back together with out it...you cant buy those little filters...at least i could not...

Anyone know where Kent is???
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