Is that all the "soft" fuel hose ?
 

Im trying to fix the fuel system up. Its not leaking or anything, and it seems that some part of the fuel hose has been replaced with Good year ones

But I have no idea how old they are, and the Hard lines underneath the car seems original ... so ... better be safe than sorry right ?

Here is the question :

one of them, the 13-497, its like 70 bux from Mazda. Is that the hose that goes from the Hard lines to the engine ? Im not so sure right now my car is sitting outside. too lazy to walk out to look. lol ... well I got stuff to do now. :)

if its just any "soft" fuel hose that I can get from Autozone for couple bux a feet. then its totally not worth the 70 bux from Mazda.

Im getting brand new hard lines from Mazda for sure. (damn one of them has been discontinued ... I'll figure something else for that one) Just looking to save a few bucks on the soft ones.

Thanks ! :)

https://www.rx7club.com/attachment.p...1&d=1271784931

It needs to be high pressure fuel hose. I'd just buy the fuel hoses from a parts store. Part #13-497 is $70??? F- that!

Buy 5/16 ID fuel injection fuel lines from Autozone. Not meant for any brand of car. Just fuel injection fuel lines off the shelf.

I suppose I should change out the 23 year old fuel lines some day too. Autozone FTW! lol

wow ! thanks for the info !

I was like "waaaata? no f-ing way a fuel line thats like a feet or 2 would worth 70 bux of my hard earned cash !"

nice. I will order the hard lines only then. thx a bunch man ;)

lol ! sup Easy.


Well, some of the soft rubber line has changed to some GoodYear stuff. but how old are they? I have no idea.

I just did a part check on the whole fuel system. damn quite a lot of parts has been discontinued ... not good.

Hey NY! I'm in the same boat. I don't know what's new and or old or very old. So I'm going to start underneath the car and work my way up. My parts list is getting epic. The end result will be a car I know what condition it's really in.

Just in case...........I meant Autozone or wherever for the rubber fuel injection fuel hoses, not the hard lines. Like I say, just in case.

And Autozone/wherever is very proud of their fuel injection fuel hoses. Just a couple of ft cost ??? ten bucks or so the last time I looked.

First of all, the "My car's outside but I'm too lazy to walk out and look" attitude isn't going to get you anywhere. The forum is a wealth of information, but we're not going to spoon feed you...hold up your end of the bargain and do your research.

Secondly, I priced out brake lines, and it was several hundred bucks from Mazda. I replaced every inch of brake line on the car for under $50. I recently replaced the fuel lines and tried to make my own...this didn't go so well, steel hardline is a giant bitch to bend.

Long story short, if I could do it over, I'd use soft line from the tank to the engine. You'd have to brace it every 8 inches, but it would be an assload easier. I used the twist-tite hose from summit, works awesome on the ends, then I have a straight 6 foot section of hard line under the car (bought from eBay).

Oh, also, apparently twist-tite hose isn't NHRA approved. I'm not concerned.

well, i am not very well known over here.

but ppl from the 8club knows what type of person I am.

the "too lazy to walk out and look" was just a joke. if Im lazy, I wouldn't even get a FC, which has like probably 1000 parts to replace.

if im lazy, I wouldn't replace my own suspension, I wouldn't replace all sways, whole exhaust, and about to go pull the engine out for a complete rebuild with brand new parts(might even get Aluminum housing/plate from RB) etc etc etc etc etc .........

the reason I made this thread is that, I just dont think 70-80 bux for 2 feet fuel hose worth the price tag. I did search and I know the correct size, just need final answers. thats all.

I already ordered all hard fuel line that I needed except for one, because its no longer available. cost maybe around 200 something shipped. not so bad IMO.

yes I know its a bitch to bend metal lines, thats why I ordered it :)

I signed up for Solo and its coming soon, so I can't go soft lines.

I just had to shop fuel hose for another project recently...5/16" high pressure fuel hose is just under $10/ft. at all the major chain stores.

Thread Resurrection !!!

There is 2 Soft lines for the Primary/Secondary Fuel rack. Can I use the same high pressure fuel hose ? Cuz those location seems pretty "hot".

https://www.rx7club.com/attachment.p...1&d=1275451867

Yes, all rubber fuel lines are 5/16ths..... : )

I replaced all my lines, including the emissions lines from the fuel tank when I did my drivetrain swap. Very easy to do, I also go the nice fuel injection clamps they have at the parts stores. They are not like the regular clamps that have the small holes, these are solid all around and won't cut into the line.

Anything that is not metal is rubber 5/16ths.... The O.E. fuel lines have a plastic sleeve over the hoses under the intake manifold, reuse the plastic sleeves or make some out of wire harness loom sleeve stuff...

Thx for the quick reply ! :)

Im looking at those plastic sleeves, one of them are No Longer Available from Mazda, I will re-use that one, the rest, getting new ones.

Damn, replacing main hard lines (3 of them), Primary Fuel Rack (prevent leak), Fuel pump (new OE), and bunch of here and there, gonna run like 700 bux. lol.

Why replace the hard line???? Well I suppose if they are rusted out. Mine were totally fine... The ones under the intakes should be ok, it's the ones going under the chassis that would be a problem i would assume... I just did a rubber fuel line replacement, ran probably less than $75.

The sleeves are just wiring harness loom wrap stuff, you don't need to go out and get ripped at mazda for those they don't go bad...

Well, honestly, none of the hard lines have rust on them.

but I mean for a 19 year old car with over 220K miles. It might not be a bad idea to replace whatever I can.






I have another question,

Im just wondering, For the soft fuel hose, is there any specific ratings I need to watch out for? Cuz the local auto shop here sells 2 kind of rubber fuel injection hose from GoodYear, one rated at 50 psi and the other 90. I know its probably better to go for the 90 psi no matter what. Is there something higher?

I would go with 90 for a future upgrade ready system. You won't have to worry about it later and the time you are taking now you won't have to do it again in the future....

Both 50 and 90 are A-OK for a close to stock system... 90psi is alot, not many fuel systems would go past this or even near it. Anything higher I would assume you would want to run solid metal lines from the tank to the fuel rails...

I'm gonna have to drop my tank to clean and seal it soon, might as well replace the soft lines while I'm at it....

And a FPR wouldn't be bad either....wonder how rubber lines would work w/ AN fittings? Perhaps Nylon braid instead........Anything but SS lines those things are a pain in the ass!

how are you gonna clean the tank anyway ? sounds kinda stupid but I think I might wanna do that too.

Is it like

Drain the tank first.
take it down

start putting dishwasher fluid in there and rub it ? then flush it like 30 times before I re-use it ?

Thats what Im thinking. even tho I probably not gonna upgrade the power of the car in the near future. it just cost like 2 bux more so why not ? :lol:

More like....

Drain tank
Remove tank
Remove pump assembly
Fashion block off plates
Fill with mixture of acid and water and let sit overnight
Drain and rinse w/ water
fill with pebbles and fill w/ tank flush
SHAKE SHAKE SHAKE
Drain (repeat as needed)
Fill with tank prep solution
Drain/rinse
Dry THOROUGHLY!!!
Apply tank liner
Let cure according to instructions on can (4 days plus :sad:)
Reinstall

hmm ...

that sounds like maybe I should just use some strong Fuel tank/injector cleaner like Redline for 10 tanks of gas ... and save myself some time :P :scratch:

If you don't have sediment in your tank I'm sure that'll work just fine, but I'd go take a look and see....23 years is a long time for crap to find its way into your tank, and there aren't too many ways for it to escape once it does....

yeah I will look at it when the pump its out. still making the "to order" list right now. list is getting long, for a 19 yr old car ...

That's very very anal to change the hard lines. What's the point? So there shiny? Buy a $10 spray can.