ok I don't know much about my 7 yet, I'm still new to the car so I'm wondering what this part is.

I was driving and then I heard a huge clunk, it turns out that some metal pipe that runs underneath the carb and connects to the cad converter fell off. I'm wondering if this pipe is necessary and do I need to fix it right away? I'm wondering if it's just there to heat up the carb and there for no other purpose.

Thank you!

 

If it wasn't necessary, it wouldn't have been there.

Year and build of car?

 

The pipe feeds fresh air from the air pump into the cat. If it's not there, you will never pass emissions, but more importantly, your cat will clog up inside. It really sucks when that happens.

 

Sub-zero fluid container.

 

haha i was thinking the same thing about that post

 

Mine never had one... so it's obviously not important.

 

Don't forget the Hot Start Assist. I've never needed that, and it was one of the first things I removed.

And if you don't need emissions:

- Catalytic Converters
- Air pump
- ACV (air control valve)
- Anti-afterburn valve
- Shutter valve
- Choke assembly (the choke magnet is fine on its own for fast-idle)
- Rat's Nest
- Without A/C the throttle opener is optional (though most cars had one anyway for some reason)...

So depending on your needs there's lots of stuff that doesn't "have" to be there! I'm sure I could think of even more but it's late.

Jon

 

True, but at least all those things actually do something (even if not anything particularly useful). The sub-zero fluid container is completely worthless for any purpose I can think of. Even Mazda recognized its pointlessness. A bit like an RX-7's appendix, really.

 

ever figure out what exactly fell off?

 

I don't think the hot-start assist served any more purpose than the sub-zero fluid container. No matter how hot the engine or the surrounding air gets I've never had trouble starting it.

When it's -40 out, you'd probably be thankful for the sub-zero system, but since most people don't winter drive their FBs it's not an issue for 90% of us.

Jon

 

But Jon, does it get to +125f in Soviet Canuckistan?

Does, down here. Anywhere from Palm Springs east for hundreds of miles, summer temps can get even above that.

Granted, you can do the same thing the hot-start does by pushing the throttle slightly.

 

Lol, after a quick trip to Google to do some converting between the odd Fahrenheit system and the Celsius system that I'm used to I can say:

It gets to about "104F" here at the peak of summer. It may not be "125F" but it's plenty warm, and certainly should be warm enough that if the hot start served a purpose, I would have needed one.

Jon

 

The difference between 105F and 125F has to be experienced to be appreciated, believe me.

All depends on your definition of "necessary," I guess.

If you're trying to sell cars to people who don't give two rips how the things work (which is most people, sadly), I guess a gizmo that prevents you from having to know to crack the throttle to restart on hot days is "necessary."

We could make a very long list of things that are not strictly essential to operation, but were nonetheless considered "necessary" enough to be included on the car.

The part mentioned by the OP sounds pretty necessary, though.

 

I took it to a shop and they welded the part back on along with a few other loose parts. Apparently the part had fallen off before (previous owner) and it was taped back on. Turns out it's purpose was some kind of exhaust recirculater.

ok so here is something else. I got the clutch replaced about a month ago and now the car makes a watery, rattle type sound when I step on the gas. the sound showed up right after I got the clutch put in, what is the sound? It's driving me nuts

 

When I went out to Phoenix to buy my RX-7 in August, we pulled into a Walmart parking lot at 3am to get some sleep in the truck. It was 98degrees at 3am!!!

The next day we left Phoenix to go to California to take care of some other business, when we crossed the border between Arizona and California the temperature was 126!!! At that temperature the asphalt is like 180+....MAN that is some real heat!!!

 

There's very little that's genuinely necessary. Where's the pic of the engine bay of Racing Beat's first-gen Bonneville car?

 

For sure. I mean, like, doors!?! Pfft, pure luxury!

 

LOL , this is the thread jack of the month

sorry dude , don't know what your rattle is , but glad you got some help on the other stuff.

P.S. , ...... the radio is a useless feature , the sound of the car is more entertaining than anything on the radio these days

 

Continuing the hijack - my girlfriend always wants me to turn the radio on when I'm driving (she knows not to turn it on herself), and I tell her we already have music - its coming from the engine bay!

She doesn't agree.