I have my car at a shop getting some work done. One of those things was the replacement of the fuel pulsation damper.

My man had this to say today:

Well, ain't that nice. Thank you, random Mazda dealership. Car is at 14,000 miles now, would've been a shame to have that fail on me within the past two months of ownership!

I still have to have the brake booster recall done and I want it on record with Mazda so I figure I have to have a dealership do it. Only one Mazda dealership in the area is still willing to say they have someone that knows RX-7s. I'm a bit scared...

 

right with you buddy. i got a recall for this awhile back. anyone got any info?

 

Do not replace, have them tap the primary rail and install a fitting. The replacement FPD will age and eventually leak as well. The FPD is not necessary.

 

I'd been reading about the FPD and it seemed that more recently most people had been saying to keep the FPD.

This is a car that is going to get less than 2000 miles a year. They were in there to do the vacuum hose job and told me that they all stil felt very pliable and new since the car had seen so little heat over the past 23 years. I'll change out the FPD as a matter of routine maintenance from time to time.

But anyhow, if I decide to not keep the car super-stock, I'll definitely look into other options, thanks!

 

DJ does it affect the way the car drives at all or idles? In other words does it have any adverse effects

Coming from a guy who's first FD died in a fire: I am scared shitless of the FPD. Even though the insurance investigator claimed that it was a leaky injector o-ring that caused it.

 

I was under the impression the issue was settled long ago here, that the FPD can be deleted with no adverse effects?

I deleted mine years ago after it started leaking, no issues with it gone. Mine started leaking on me during a day long spirited drive, didn't notice it until I got the car home in the garage and smelled fuel. Luckily, it was still a slow enough leak to evaporate immediately from the heat.

I don't subscribe to the logic of replacing a flawed part with a new version of the same flawed part, especially when the component in question is fuel related, can burn the car to the ground potentially without warning, and has been deemed unnecessary.

 

I don't know if it's "flawed" so much as it is a "weakness". It can be improved upon with aftermarket fuel rails, etc, of course. But there's a reason why it exists. Mazda wouldn't have added it without reason.

Of course, that reason could just be "emissions", or "fuel economy", so it very well may be harmless to remove it. But it could also be preventing a lean condition due to pressure waves. I don't think it's ever been determined what its purpose is.

Some info here:

https://www.rx7club.com/3rd-generati...damper-491837/

I'm just going to treat it like a regular service item, like you would a timing belt or what not. Change it every 30,000 miles/three years, whatever.

 

It's important, don't remove it.

https://www.rx7club.com/single-turbo...tions-1090373/

 

Ah thanks! Yeah, that's why I said earlier that "it seemed that more recently most people had been saying to keep the FPD." I've been reading so many threads over the past six months that I didn't retain all the details in my head!

So yeah, definitely important to properly fuel delivery and I will not delete it.

 

Another thank you & that's why I asked. Time to get another for the sake of maintenance (as eslai put it)

Edit-I have big *** injectors so that thread definitely applies to me...


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