rx7plus8

sup! my 94 Fd sprung a fuel leak on the front passanger side of the motor. what causes this?!? i had a fuel leak on my fc before but it was by the firewall on the fuel filter.?!? could it be the fuel injectors?!?

ObliqueFD

iTrader: (32)

It could be the injectors, fuel lines, or fuel pulsation dampner. There was a recall from Mazda that replaced the fuel lines to prevent them from bursting open. Until you find out what is causing the leak and repair it, don't drive it.

DK

iTrader: (5)

You can buy a fuel system UV dye just as you can for cooling and AC systems. Auto Zone has it for sure, but I'm sure others do as well.

EricRyan

iTrader: (4)

If it's on the pass. side I'd lean more towards injectors or the 2 dampeners. And as said before, DO NOT DRIVE THE CAR.

GoodfellaFD3S

iTrader: (213)

My money is on the fuel pulsation dampener, which is located on the primary fuel rail, right above the intermediate iron housing. Not fun to get at with stock seq twins. The stock fuel pressure regulator (on the secondary rail) doesnt go bad nearly as often.

rx7plus8

thanks I'm going to pull the intake off today! to see whats going on!

dgeesaman

iTrader: (7)

I would not even start the car.

You can turn the ignition on, which will pressurize the fuel lines, but don't start it because fuel leaks = major fire hazard.

rx7plus8

i pulled the fuel rails and and i was wondering what the fuel pulsation dampener looks like?!?! all the access fuel is resting on top of the second rotor housing by the fire wall. now that i think back, the car back fired while starting it and then the leak started,
BTW those vacuum lines are a B!!!

Mahjik

iTrader: (1)

It's on the right side of the primary fuel rail in this picture:

DK

iTrader: (5)

Yay nipples!! ^^^