I'm getting rid of my current fuel pump set-up and getting ready to put duel in-tank pumps in. I know what the two lines in the middle are but I'm unsure what the two outside lines are. I don't want to rip everything out without knowing what they are and I don't feel like getting under the car to try and trace where they lead to. Thanks for helping a lazy rx7 owner out

 

This is what I use most of the time. Enjoy!

http://foxed.ca/rx7manual/manuals/94...hop_manual.pdf

 

^Thank you, It is not hard to use right?


Instead you rather take a picture, load it up on the internet, link it in a new thread, type a new thread all to avoid looking under the car


John

 

Maybe he doesnt know how to read, or look at pictures.

thats the fuel vapor system.

 

If you are going to try and be funny, at least get the gender right as that's a "she".

 

Those lines run from two little nipples on the gas tank through those two little check valves/filter you have circled into a charcoal canister which is designed to catch the fuel vapors or sometimes even gas if you over fill the tank and drive straight to the local auto cross which has happened me a few times so any who removing them will give you that fresh gas smell which eliminate any need for cologne or in your case perfume

 

It would be funny if posting a picture here didn't only take a fraction of the time that it took for the FSM to load. The diagram in the FSM is only vaguely helpful, in my opinion. It's not hard to form a sentence or two to help someone out, right John?


Thanks Fritz. So beyond yet another scent added to the eau de rotary, there isn't any other repercussions stemming from the removal of that system?

 

You can remove it but I think you'll still have to vent the tank somehow so that may be a challenge if you remove the OEM ventilation system.

I think I've owned cars with it removed and possibly they left the charcoal canister or just let the hoses vent to the atmosphere.

I've had single turbo cars with no purge solenoid (rare) and in that case it's not circulating through the little catch tank that's under your t-body and possibly just letting the fumes out of the metal line that's next to the feed and return lines on the fire wall.

If you go to the single turbo section you can probably get the 411 on how to remove it properly.

 

The charcol cannister handles the gas fumes as idle, where as the evaporative system handles them with the engine under load. Unless it's a track car, I wouldn't suggest completely eliminating those systems.

 

ah, good information. Thanks Fritz and Mahjik. I'll see what I can do to keep those systems intact.