....lets say that the PD is leaking. That plastic cover over the front will keep fuel from leaking out then you find that the little screw is out with the attached "gasket washer". Would reinstalling the screw with gasket be a temportary fix for the leaking diaphragm ?

 

no...you will probably break the diaphram even more by putting the screw back in.

 

I know the diaphragm is already broke if its leaking...what I'm actually asking is will the screw with the gasket be sufficient to stop it....

 

Nope. The leak is not actually caused by the screw...Personally, I say buy the part from Mazda. It will be good for another 15 years.

 

If it's leaking, replace it now. The other option is kicking yourself later...

 

Each of you are right, but I'm not making it clear enough by what I'm asking...
I know the leak is caused by the diaphragm being broke...the only place fuel can get out is the hole where the screw is...attached to that screw is a plastic gasket...gas CAN get out if the screw is loose or out...

Sooooo, with a leaky pd, will the screw with gasket keep the fuel from leaking TEMPORARILY till I can get everything together to fix it right?

 

i dont know...i have never tried that because im too scared to burn down the car. I don't recomend anyone trying that either.

 

No, they are right.
Once the diaphram is damaged, fuel can leak either from the hole where the screw is and the flange.
The plastic cap is there to prevent any damage from things hitting the PD; it does NOT seal any leaking fuel.

Once the PD fails, you can't prevent the fuel from leaking short of sealing the who godamn thing.


-Ted

 

Like cwaters said you will kick yourself if you try that either you can spend the little bit of money now to get a new one or you can spend a lot to get a new car due to a fire and a fire WILL happen. Save yourself the kick, do what is right, people give you this advice cause they do not want to see another fire take place. Do a search about fire and that hopefully will change your mind.

 

Yeh...thats a good argument

 

I used a banjo bolt to replace the FPD, 12 bucks, no leaks, I'll see how the fuel Injectors hold out.

 

I'm sure he replaced his FPD 4 years ago.

 

The screw can be removed and no fuel should leak out. The threaded hole for that screw is deadended and does not lead to where the fuel is.\

The threaded hole is in the middle of a *rubber diaphram*. Only the ripping/tearing of the diaphram can lead to fuel getting to the hole where the scew enters the outer body.

Take a Dremel tool/cutter to your old leaking PD and you'll see what I tried to explain.

 

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