I have the engine out of my '88 Formula right now.
For quite a while this car has suffered from strong fuel smells, particularly right after I filled up the tank.
I have tried replacing every fuel line I could find near the rear of the fuel tank, but the smell has continued.
I thought I had read somewhere that Fieros have a fuel "expansion tank" somewhere and I wanted to check all the fuel lines that go to it while the engine is out.
But, now I cannot find any such tank or figure out where I read about it.
Does this tank exist, or is it just senility setting in?

Passenger side, forward of the rear wheel, outside of the spaceframe. Just need to take the wheel off and remove the forward plastic piece in the wheel well.

Here is a pic of its location ..... as described in previous post.
Expansion Tank

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Tylers Toy

Thanks guys.
I take it that I can just use regular fuel line for the hoses to and from?
In other words, I don't need the high pressure stuff?

quote Originally posted by sd_iconoclast: I take it that I can just use regular fuel line for the hoses to and from? In other words, I don't need the high pressure stuff?

If you need the "high pressure stuff" to run to and from the expansion tank, then you've got BIG problems!

The original lines were steel. If you remove your battery you can see them.

quote Originally posted by sd_iconoclast: I have the engine out of my '88 Formula right now. For quite a while this car has suffered from strong fuel smells, particularly right after I filled up the tank. I have tried replacing every fuel line I could find near the rear of the fuel tank, but the smell has continued.

If your car has a heavy fuel smell, then you may need to replace the EVAP (fuel vapor) canister filter. The EVAP canister is that large canister that sits near the air filter. There is actually a filter in there - it's in the shape of a thin, round disk and is similar to the HEPA filters put in vacuums - and unfortunately doesn't actually have a maintenance schedule for replacement since it's not listed as a serviceable item. I'd imagine a lot of owners don't even know of it's existence.

If it is heavily dirtied and never been replaced it can cause fuel vapors to emit leaving a heavy fuel smell.

I took the wheel well lining out when I was replacing the a/c compressor and when I looked at the expansion tank lines, they were totally corroded (part of one was missing and the other one crumbled when I touched it. Rain water can get under the battery and these lines will get wet. I replaced the bad section of the steel lines with fuel hose and clamps. When you fill the tank, the corroded expansion tank lines are venting and any extra fuel may be spilling out. Getting the tank out is a pain, but you should be able to replace the bad parts without removing the tank.

HTH.

- Jimmy

p.s. There may be some sharp metal edges, you may want to put the fuel hose in a flexible plastic conduit to protect it.

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1987 coupe; Blue; 2.5L; 5spd

[This message has been edited by Macarchie (edited 09-18-2013).]