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-   -   Rx-7 catching fire repeatedly?! (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/rx-7-catching-fire-repeatedly-799319/)

FDWarrior 11-10-08 10:13 AM

Sounds to me like an o-ring on one of your injectors is bad. I have a friend who tells a story of using an aftermarket fuel rail and using that companies o-ring's wich caused his car to burn. I saw you had modified injectors, I bet your fuel leak is coming from your injectors around an o-ring down to your exhaust manifold.

IRPerformance 11-10-08 11:43 AM

Give the guy a break, he is probably new to the car. Otterball, give me a call at the shop. I'd be glad to help.

otterball21 11-10-08 01:16 PM

What was that post about anyways?

I don't care about the flames. I've wrenched on plenty of cars, but I'm not a person that treats it like a god. I thrash the crap out of them.

Honestly, this is my first rotary car. My previous was a r33 GTS-4 ( yes.. I owned the world's SLOWEST skyline.. bleh)
a 2nd gen crank walking eclipse tsi, and then a 240sx s14r33 conversion.
Before that it was all american muscle cars.
This is definitely not my DD. I dd a 05 4runner every day. This is just my fun car to mess around with. I have learned to accept the Love hate relationship with my rotary. But from all my previous experience, it's always good to ask people that have been around the car more than I have, then posting about how amazing I got everything right on the first try.

Every person that would have saw my car when I first got it, would have cried.
No door handles, the kid used the hood prop and opened the trunk to open the door. the front was damaged, the hood didn't latch, the flip lights were stuck upward. The second turbo was blown, the car had a 3 inch pipe welded to the precat, and a ebay muffler was slapped on. rear tires on the stock rims were a 225/35/16. the fronts were 245/45/16 If you know tires, you would have known how rediculously stupid it looked. The windshield had a big crack on it. He drove it every day like that!!! The only good thing I got out of it? a Power FC ..

From then on

I've switched to the Apexi Isamu Single Turbo kit
Apexi Noir Exhaust
Another Power FC
AVCR to manage everything
Nice set of staggered wheels on it.
Did all the body work and repaired everything
Rats nest elimination
FMIC
New Radiator setup
New AST
Rechecked compression all around and I got 110 psi on all both rotors and all rotor faces
So it definitely has come a long way.

NoPistons! 11-10-08 01:33 PM

Oh wow! You're alive!


It sucks getting a molested car, doesn't it? I'm finding missing shit and shit that shouldn't even be there on my fc every time i work on it...... My afm is upside down too. I'm probably going to strangle said previous owner. He was supposed to come by yesterday and pick up some parts and then i was going to bite his head off about all the shit his ricer ass messed up and failed to mention....

Anyway, let us know when the problem is resolved.

otterball21 11-11-08 12:13 AM

yeah I'll take it all apart yet again, just no time recently. I will get to it this week though!

otterball21 11-17-08 03:05 PM

So I took it all apart and this is what I discovered. One of the bolts on the secondary rail came slightly loose. So when they kicked in it lifted the rail up just a little bit. The reason why it caught fire is because it is the vapor and the wastegate has this 90 degree dump pipe that spits out flame and it's so hot that it ignited the vapor. So I fixed that and no problems now.

Why in the world did Apexi not make the wastegate exhaust into the downpipe?! This just makes it all frightening when a flame shoots out of the wastegate.. :-\

Thanks everyone!

SLOASFK 11-17-08 04:41 PM


Originally Posted by Rotary Experiment Seven (Post 8708996)
Give the guy a break, he is probably new to the car. Otterball, give me a call at the shop. I'd be glad to help.

He's an S14 guy who treats his FD like it's a 240.

And yeah, Otter, take your car to IRP. Ihor will take care of you. :icon_tup: he's the best rotary mechanic in the northeast, if not in the country.

dgeesaman 11-17-08 04:53 PM

So what did you do to stop the flames from coming out of the wastegate?

mono4lamar 11-17-08 06:27 PM

Good to hear you got it sorted out. I came in late but it's still nice to see a thread with a conclusion lol. Did you get the modified primary rail from me? I've sold so many I can't keep track! I was actually nervous till I got to the end of the thread. If you have any injector problems let me know...

otterball21 11-17-08 11:59 PM

I did get the modified rail from you.. The machine shop said it was like .0037th's off or something like that.

lol, at the s14 comment. I do thrash on it. Hey, you gotta pay to play like my buddy said. It's a car. I have fun with it.

I didn't solve the wastegate problem yet, but I think I'm going to talk to my buddy and have him try to weld it so it goes into the downpipe

SLOASFK 11-18-08 11:47 AM


Originally Posted by otterball21 (Post 8729478)
lol, at the s14 comment. I do thrash on it. Hey, you gotta pay to play like my buddy said. It's a car. I have fun with it.

:bigok:If you don't have fun with your FD, then you might as well not own it.

I got nothin but love for otterball, just like to bust your chops every now and then...

Say, when are you going to be able to paint my car, I think you were saying possibly december last time we talked, right?

otterball21 11-19-08 12:40 AM

well right now I have a fox body mustang torn apart in there, the stroker crank ovaled out one of the cylinders and one of the head studs stripped out the block, so that's in the garage.

Also a Datsun 280zx is in there for body work and modification. so I'll see how it goes...

proz07 11-19-08 12:55 AM

nice to see ya got it fixed yourself i always like seeing people fix thier own stuff it makes the world a smarter place. i have to admit though when i first posted here it sounded like you were DD it that way with a fire extinguisher in hand to put it out when you stopped. lol and im a firm believer if you dont drive your car whats the point in having it go buy a model instead.

z

mono4lamar 11-19-08 11:08 AM


Originally Posted by otterball21 (Post 8729478)
I did get the modified rail from you.. The machine shop said it was like .0037th's off or something like that.

lol, at the s14 comment. I do thrash on it. Hey, you gotta pay to play like my buddy said. It's a car. I have fun with it.

I didn't solve the wastegate problem yet, but I think I'm going to talk to my buddy and have him try to weld it so it goes into the downpipe

They are all milled exactly .125". I've seen some that have more of a mill (looking at reference marks) but I honestly think most factory rail were milled more than others. I think this would be due to impurities in the casting process and instead of throwing it out they just mill it slightly more. Regardless of the mill amount a rail wont leak as long as the o-rings are good and the injectors have a load holding them down. I also always use lock tite on them so there's no chance of the screws coming loose. I use a special green solution so I can see if someone has tampered with them too:rofl:

P.S. If you're in anyway unsatisfied send it back to me and I'll send you a fresh one for no additional charge! :)


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