pulsation damper
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Joined: Jan 2004
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From: Valrico, Florida
pulsation damper
i found the leak is coming from the P/D. from where it's at, i would have to remove the extension manifold. & i know it is not easy thing to do. there is a shop about 22 miles away from my house that specializes in RX7. but i would be taking a big chance taking it over there. what are my chances of having to replace it than seeing if it is something else. i can see the fuel coming out when the car is on. ive seen pictures of cars that suffer the same ordeal & trust me i don't want to be one of them...
yesterday i spent all day stripping the interior out & shampooing the seats, & the carpets. by the way the seats are in close to perfect condition (just dirty as hell).
it took me nearly 3hrs. just on the seats, wanted gotten them really clean. no tears or faded. oh! it's a 1988 RX7 GXL. my wife brought it for me on our wedding anniversery. paid $2500.00 came w/17" JD rims only 2 months old. the radio is missing due to theft, destoyed the a/c radio console. that sucks!!! but anyway i need to get that P/D resolve. i'm not driving it yet because i have company truck.
yesterday i spent all day stripping the interior out & shampooing the seats, & the carpets. by the way the seats are in close to perfect condition (just dirty as hell).
it took me nearly 3hrs. just on the seats, wanted gotten them really clean. no tears or faded. oh! it's a 1988 RX7 GXL. my wife brought it for me on our wedding anniversery. paid $2500.00 came w/17" JD rims only 2 months old. the radio is missing due to theft, destoyed the a/c radio console. that sucks!!! but anyway i need to get that P/D resolve. i'm not driving it yet because i have company truck.
Do not touch it I am totally serious... DONT!!! If you have 20 bux and a credit card you can order a banjo bolt which is a band aid fix.. Some people use it instead of a PD your choice. But just dont drive on that pd b/c when it drips on the exhaust manifold kiss your *** good bye.
Re: pulsation damper
Originally posted by drgnsRx7
i found the leak is coming from the P/D. from where it's at, i would have to remove the extension manifold. & i know it is not easy thing to do.
i found the leak is coming from the P/D. from where it's at, i would have to remove the extension manifold. & i know it is not easy thing to do.
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Summary:
PD helps absorb pressure fluctuations due to the opening and closing of the injectors. I think it also takes some of the fluctuation out from the fuel pump too. Some think that the variations are small enough not to worry about.
PD helps absorb pressure fluctuations due to the opening and closing of the injectors. I think it also takes some of the fluctuation out from the fuel pump too. Some think that the variations are small enough not to worry about.
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Joined: Feb 2001
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From: n
I could have sworn I read something about the fuel lines cracking since the lines would receive more pressure. But it has never actually happened from what I have read. and if I am wrong I am sorry I am just trying to help... 
Originally posted by Icemark
You want to avoid the Banjo bolt band aid, as it will affect fuel delivery and fuel line life.
A PD is found on almost very fuel injected car for the last 20 years... if they could build cars without them they would.
A Pulsation damper is critical to the proper function of any EFI setup. Rapid cycling of the fuel injectors and fuel system components in a running engine combine with the non-compressibility of the fuel; and create high frequency pressure waves in the rail. These pressure waves can cause substantial variation in the fuel delivered by the injectors; causing numerous running problems that are difficult to trace, in addition to increasing stress on the fuel pressure regulator.
You want to avoid the Banjo bolt band aid, as it will affect fuel delivery and fuel line life.
A PD is found on almost very fuel injected car for the last 20 years... if they could build cars without them they would.
A Pulsation damper is critical to the proper function of any EFI setup. Rapid cycling of the fuel injectors and fuel system components in a running engine combine with the non-compressibility of the fuel; and create high frequency pressure waves in the rail. These pressure waves can cause substantial variation in the fuel delivered by the injectors; causing numerous running problems that are difficult to trace, in addition to increasing stress on the fuel pressure regulator.
Last edited by Gibenstein; Feb 2, 2004 at 09:24 PM.
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From: n
Originally posted by truespin88
Ted, do you verify that "supposedly"? I mean, has it ever cracked anyone's fuel lines?
Ted, do you verify that "supposedly"? I mean, has it ever cracked anyone's fuel lines?
I've never heard of fuel lines cracking.
We've run them on several FC's, and none of them have any fuel problems.
The stock FC runs at least 2 - 3 feet of rubber hose, and that will easily absorb any pulsations from the fuel injectors.
-Ted
Like I said .... Just trying to help I dunno I just read about it.. And btw are you hawaiian ted ? I have lots of family in honolulu cause I used to live there until I moved to this desert land for my step dad ><.
Mazda4Life
Joined: Aug 2003
Posts: 1,228
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From: Rockville, MD
Last week I went with my friend mike to buy a 10 AE in VA. It was completely gone due to a PD fire. They wanted 4k for it... we walked. But, yah the pictures you see are nothing compared to actually seeing the damage infront of you. I say run lines straight to the rails, or swap the GMC PD in place of the mazda one. I know you need adapters for it, but I know a few people that swear by it. But as said before, don't drive with it leaking.
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