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-   -   I don't know about nirvana.. but my FC smells like gas (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/i-dont-know-about-nirvana-but-my-fc-smells-like-gas-585255/)

chomperhater 10-08-06 02:07 AM

I don't know about nirvana.. but my FC smells like gas
 
Yeah... I think its that pulsation dampener problem many of you have experienced. I'm getting ramps and looking at it tomorrow. I've stopped driving it except around the parking lot after I cleaned the interior. Any suggestions from the wise?

Aaron Cake 10-08-06 10:12 AM

Check the PD? :)

You can pressurize the fuel system by jumping the yellow connector at the passenger shock tower (or under the airbox) and turning the key to IGN. Then with a bright light, find your leak. I like using a LED flashlight.

chomperhater 10-08-06 06:54 PM

It is the PD... there is some fuel around it at all times. My question is this:
The PD should only leak when the engine is running, right? If I see a small spot of fuel underneath the car when its parked overnight, does that mean that the fuel lines are leaking?

gxl90rx7 10-08-06 09:04 PM

no it will leak whenever your fuel pump is on. just pop off the uim and replace the pd with a banjo bolt. before you put the uim back on, do the afore-mentioned jumper trick to get the system primed, and check along the fuel lines for leaks. wouldnt be a bad idea to replace the lines while your at it

KeloidJonesJr. 10-08-06 09:06 PM

Time for you time get a banjo bolt.

adrock3217 10-08-06 10:19 PM


Originally Posted by chomperhater
It is the PD... there is some fuel around it at all times. My question is this:
The PD should only leak when the engine is running, right? If I see a small spot of fuel underneath the car when its parked overnight, does that mean that the fuel lines are leaking?


Your fuel lines stay pressurized after the car is turned off. If you were to pull one (or have a hole from which it can leak) it would put out a good 1/2 gallon before it stopped.

My5ABaby 10-09-06 07:17 AM


Originally Posted by adrock3217
Your fuel lines stay pressurized after the car is turned off. If you were to pull one (or have a hole from which it can leak) it would put out a good 1/2 gallon before it stopped.

Yeah, and whenever you pull it off, make sure you don't get it in your eyes. That never turns out well...

:redface: x 2

chomperhater 10-09-06 10:51 AM

Haha.. cool. I'm working on the car today and tomorrow. Will let you guys know how it turns out.

chomperhater 10-14-06 06:16 PM

So I finished the banjo bolt fix today. Doesn't look like it had leaks anywhere else. Will keep you guys updated.

chomperhater 10-14-06 09:50 PM

The fuel injector on the secondary rail closest to the firewall has started leaking. I'm guessing its the 'O' ring. What do you think? (its leaking from the top, not the bottom)

Aaron Cake 10-15-06 11:17 AM

Probably the o-ring. These should be replaced any time the injectors are removed.

chomperhater 10-16-06 02:10 AM

Yep. $4.44 for 4 O-rings from NAPA. Fixed for good. Now I have to look at that sloppy shifter.

staticguitar313 10-16-06 03:52 AM

i ordered my intake gasket banjo bolt and crush washer, should be in tuesday, at that time i'll have to go through the same thing . . . question . . .
can i get away with leaving the water lines to the TB intact so i dont have to bleed the cooling system? i want to have to remove as little as possible to make this quick. what can i leave connected to the plenum?

chomperhater 10-16-06 01:35 PM

Well, to be honest with you, the intake gasket looked fine to me. So I never removed the UIM, TB or the surge tank. I left most hoses intact. The only things I did remove were the air intake snorkel, secondary fuel rail and the oil metering rod. I had 2 assistants hold the UIM up about 2-3 inches when I changed out the PD for the banjo bolt. Worked a lot quicker considering we were working outside in a parking lot in the cold wind.

Rotarctica 10-16-06 02:16 PM

My FC sometimes smells a little like gas...but I've yet to ever find a leak or loose gas anywhere. Isn't there a relief valve for if the gas tank builds up too much pressure?

chomperhater 10-16-06 05:21 PM

Clean the charcoal canister... that might fix the problem.

Aaron Cake 10-17-06 09:01 AM


Originally Posted by Rotarctica
My FC sometimes smells a little like gas...but I've yet to ever find a leak or loose gas anywhere. Isn't there a relief valve for if the gas tank builds up too much pressure?

You may have a problem with the "check and cut" valve. Check the FSM or Haynes manual for testing...


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