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-   -   pulsation dampener leak!!! (https://www.rx7club.com/new-member-rx-7-technical-256/pulsation-dampener-leak-981431/)

sideways-FC 12-25-11 04:45 PM

pulsation dampener leak!!!
 
First off marry christmas to every body ,and second I am very lucky today I noticed that my pulsation dampener on my 88 na is leaking before it cought fire thank god. So now I have to take off the uim and fix it. I would like to get ride of it, whats the best way to get ride of it. because I dont want to spend 130 bucks for a new one and I dont really want it on my car any way. Do I even really need it for a stock applicaion.

Aaron Cake 12-26-11 10:49 AM

Replace the damper with another from the dealer. That is the best fix.

I'll leave it to someone else who doesn't understand how the fuel system works to recommend the banjo bolt "fix".

Phoenix Jones 12-26-11 11:17 AM

It lasted 21 years, I'm pretty sure a new one will outlast the car.

Gringo Grande 12-26-11 12:07 PM


replace the damper with another from the dealer. That is the best fix.
+1

sideways-FC 12-26-11 12:40 PM

they leak out of that little screw hole right could I just put the screw back in and cover that whole area with epoxy so it never leaks again.

Aaron Cake 12-26-11 03:35 PM

No. The diaphram needs to move freely on the screw. If it's leaking from the screw it means the diaphram is already torn.

rxat2012 12-26-11 04:28 PM

it is always best to just replace it with a known good unit or an oem replacement ... i have done this many times with no issues

sideways-FC 12-28-11 05:23 PM

what would happen if I did take one of my other pulsation dampeners that hasnt failed yet and put jb weld on it and used that.

cBigganz 12-28-11 09:53 PM

Don't bother trying to patch your broken PD, fuel leaks shouldn't be something you mess around with. Either replace it with oem parts from the dealer or get a M12x1.25 banjo bolt to hold you over if you cant afford it. I've got it patched with a banjo bolt right now but will be installing a FPR when its not -20 outside.

sideways-FC 12-28-11 10:25 PM

I think I will just put a banjo bolt on it for now and find a better fix in the spring I hate the cold to I have been doing all this in the freezing cold I hate it. dont they make fpr with the pd built in.

cBigganz 12-28-11 10:43 PM

A good FPR will do exactly what the PD does, only more effectively. If you're going that route you may as well upgrade the fuel pump and injectors or its a waste of money. PD is good enough for a stock setup.

Aaron Cake 12-30-11 09:58 AM

Takes the same amount of effort to hack it with a banjo bolt that it does to properly fix it with a new damper.

Evil Aviator 12-30-11 10:56 AM


Originally Posted by Aaron Cake (Post 10916965)
Takes the same amount of effort to hack it with a banjo bolt that it does to properly fix it with a new damper.

+1

Replacing the pulsation damper is a quick fix, and all you need to buy is a new damper, intake gasket, and maybe a new damper seal. While an Aeromotive or SX fuel pressure regulator is a nice upgrade, it will take longer and cost more money. Just to clarify, you can still use an aftermarket fuel pressure regulator with the stock fuel pulsation damper, so you can always upgrade later when it is warmer but I'm not sure if there is much point if you have an unmodified non-turbo engine. I think it is a bad idea to run the engine with no damper at all.

sideways-FC 12-30-11 03:18 PM

my friend gave me a pd that hasnt failed yet so we will see how that goes nock on wood.


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