What causes fuel pulsation dampers to go out?
Thread Starter
Joined: May 2005
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From: chamber of farts
What causes fuel pulsation dampers to go out?
I know they are the leading causes of rotary fire. How do these lines crack? I know when they leak, the fuel gets onto the manifold and is flammable. Eventually overtime will catch on fire. By too much fuel and pressure in the PD? I want to konw!!! Also what is a remedy, I hear that banjo bolts/fittings are like a rebuild or maintance thing? yes or no?
HAILERS
Joined: May 2001
Posts: 20,563
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From: FORT WORTH, TEXAS,USA
The pulsation damper is not a line. It's a .......damper. What fails is the rubber diaphram tearing and leaking fuel out where the small screw is under the plastci cap on the end. The screw can fall out but no fuel will exit. It's the diaphram that tears and spills fuel.
Replace it is the fix. It's a maintance thing.
Replace it is the fix. It's a maintance thing.
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
They get old, the rubber rots and the diaphram breaks. Basically they age the same as any other rubber part but since the diaphram is much thinner then a fuel line (for example) it is easier for them to leak.
Rotary Freak
Joined: Jun 2004
Posts: 2,718
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From: Ames, IA
Originally Posted by BLKTOPTRVL
What is the expected lifespan? I'm over 200K on mine.
You should REALLY consider replacing yours soon. And carry a good fire extinguisher.
-=Russ=-
Just Messing About
Joined: Feb 2001
Posts: 1,020
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From: Just West of Atlanta
You're well past time to replace it. My car had ~160K when I replaced the PD. The screw had fallen into the plastic cap but it wasn't leaking. Yet.
Thing is, it CAN cause a fire. I'd change it the firest time you have a chance. AND carry an extinguisher in the car for good measure.
Thing is, it CAN cause a fire. I'd change it the firest time you have a chance. AND carry an extinguisher in the car for good measure.
I'm back Bishes
Joined: Jan 2006
Posts: 1,241
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From: Rhode Island
The pulsation damper is an interesting item, and I have been told in the past to remove it from my fuel rail after I had done all of the modificaitions to my TII. I did in fact remove it about 3 years ago and haven't had any problems since (at least that I am aware of).
It would be interesting to find out if anyone here knows what the negative aspect of removing the pulsation damper is, since we all know that the positive effect would be NO MORE FIRES! LoL
It would be interesting to find out if anyone here knows what the negative aspect of removing the pulsation damper is, since we all know that the positive effect would be NO MORE FIRES! LoL
Trending Topics
Joined: Feb 2001
Posts: 29,798
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From: London, Ontario, Canada
Originally Posted by rotorforce
It would be interesting to find out if anyone here knows what the negative aspect of removing the pulsation damper is, since we all know that the positive effect would be NO MORE FIRES! LoL
Marren makes an aftermarket one for like 115. Anyone ever try one? also Its rebuildable... But not sure what the cost of a rebuild is... Or how long it last or if it leaks like a stock one when it wears out?
I'm back Bishes
Joined: Jan 2006
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From: Rhode Island
Found a great site that explains it all. It's a must read....
http://fc3spro.com/TECH/FAQ/pd.html
Good luck
http://fc3spro.com/TECH/FAQ/pd.html
Good luck
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