Shadowx775

The past week my FD has been running odd. When I'm parked, or completely stopped, it has a hard time moving. Say I go up to a stop sign and stop completely, when I go to give it gas, it takes a lot to get it moving. I usually have to go to about 4-5k RPMs to get it to move. But after it moves, it starts running pretty much normal. Normal speed to RPM ratio by the time I'm in 2nd. Before this started happening, when I was in stop-in-go traffic, after about 5-10 min in traffic, I would get choking from the exhaust, and minor backfires after I let off the accelerator. Also, the engine has been running hotter than normal.

thoughts?

shibbiy

In your engine bay (If your standing right infront of the car) go to the top right corner and find a little sensor box about 2 inches in length. It will have a vacuum hose connected to it, unplug and plug, and make sure to tie it down with a zip tie.

arghx

iTrader: (3)

do you have any mods done to the car?

MattGold

iTrader: (108)

My first instinct is slipping clutch. Stock clutch? Mileage on it/the car?

Shadowx775

no

Stock, bout 70k km

Will do

gracer7-rx7

iTrader: (16)

What? Why?

Shadowx775

K, found it and did what you said, but didn't do anything, was already connected fine when I unplugged it.

Jdrift

Check your exhaust backpressure. Or get a vaccum reading. Or both.

Shadowx775

So it has progressively gotten worst and I have stopped driving the car completely until I fix the problem.

Today I drove to lunch and when I got in the car to head back, it was quite worst. It wouldn't budge even at 5k RPMs when I got to 6 it moved and got me going, but when I slightly let off the accellerator I got a huge backfire. So I shut her down and got a ride.

Could it be a bad pressure plate? It has to be something with the clutch right?

96fd3s

sounds like your clutch is completly screwed..
im looking into a new clutch myself

live2drive15

iTrader: (4)

If you dump the clutch while in 1st gear at a stop does the car die immediately? If it doesn't, your clutch is slipping. If it does your clutch is most likely fine.

The backfire has got to be a separate issue, as the clutch really doesn't affect the way your engine runs.

94rx7tt

iTrader: (1)

I believe if it's the clutch disc you should be able to, with the car running, put it in 1st, 2nd etc (any gear) and the car won't stall. You can do this since the disc is no longer there to transfer the power from the engine to the transmission.

live2drive15

iTrader: (4)

Yes that is correct, If it doesn't die Immediately you have lost your connection from the engine to the wheels. So there will technically be nothing to stall your engine out.

Shadowx775

Can you be a little bit more specific? You mean press the clutch, go into first or w/e and let go of the clutch? or what? Also, if it does stall, what are some other ways to troubleshoot to figure out what the underlying problem is?

asianguy02

iTrader: (4)

he means start the car, push the clutch in, put it in first with the car idling. If it stalls, the disc is good, or at least not gone, if it doesn't stall go buy a new clutch.

Shadowx775

I must be dumb or misunderstanding what you're saying, because how would this troubleshoot the disk, because if everything is working fine, and you depressed the clutch, and put it in first, it wouldn't stall. And as you let off and pressed the gas, it would move.

Now about live2drive15's post that sounds like you put it in first and let off the clutch, normally the car would stall, but since there is no connection it won't stall. At least that's what I got out of it. So I don't understand how asianguy02's post makes sense.

Sorry if you're right and I'm just being hardheaded.

Double_J

iTrader: (28)

Yes they are saying take your foot off the clutch. If the clutch is fine it will grab, and the car should stall. If the clutch is slipping it will not grab at all or it will very little and the car should continue to idle.

Shadowx775

Thank you for clarifying.

live2drive15

iTrader: (4)

Dump the clutch aka release the clutch very quickly.

Shadowx775

So I tried it out and it DID NOT stall when I let off the clutch in gear. So it is indeed the disk.

But my question is, should I replace just the disk? Or whole clutch? If the disk is worn out, does that mean the rest of the clutch is going bad? Seems like the smart thing to do since its a pain to replace anything to do with the clutch, plus I'm sure it would increase performance and I won't have to worry about the clutch anymore.

Just give me some validations/ opinions please!

live2drive15

iTrader: (4)

Replace it all, clutch disc, pressure plate, flywheel, pilot bearing, throw out bearing. Might even want to do the rear main seal since you'll have access to it.

Shadowx775

So I'll just buy a clutch kit.

Anyone know a good kit? Maybe a website with a good deal, or something like that. Always hard to find a site that ships overseas, or is located overseas that has decent deals.

live2drive15

iTrader: (4)

http://srmotorsports.com/sr93clch.html

http://www.rx7store.net/category_s/167.htm

http://mazdatrix.com/f-ExedyKits.htm

I don't have any personal experience with any of them, I did have a 9.5b flywheel from SRMotorsports on my last FD and I thought it was very nicely made. But there are a few websites you can look at too see what's out there.

94rx7tt

iTrader: (1)

Actually, what I'm saying is with the car started DO NOT push the cluth pedal down. Try to put it into any gear. If you can put it in any gear WITHOUT pushing down the clutch, the disc is gone and it needs replacing.

DO NOT force it into gear. Just push with a little preasure. If it doesn't want to go into any gear, chances are the clutch is OK.

Sorry for not being more clear.

live2drive15

iTrader: (4)

He figured it out, clutch is toasted.