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Post by xti on Dec 12, 2013 7:15:24 GMT -6
Ok, so I thought my clutch was just finally starting to fail under the pressure of the added horsepower over stock. So I took it to my mechanic buddy for him to make sure it was the clutch. He said it seemed more like a hydraulic issue, like maybe the slave cylinder. Then he drove it and said he couldn't make it do what I was describing. So, here's my description of the issue.
First of all, the clutch does not slip. When it's in gear and at high rpms, if I stomp on it the car goes like it should with no problems. In fact, if I don't shift at WOT, the problem doesn't present itself at all.
What it DOES do is this: Let's say I decide to make a run through any two gears at WOT. Doesn't matter if it's 1-2, 4-5, or anything in between. Everything feels normal during the run. AFTER I let off the gas, though, there is a slight vibration in the clutch pedal. Then when I push the clutch in, there is also a "gritty" type feeling as I'm pushing the pedal. Not sure how else to describe it. Here's the kicker: the pedal feel goes back to normal if I just pump it three or so times. This gritty vibration does not return until the next time I go WOT and switch gears. I can leave it in 3rd and do a 3rd gear pull without getting this issue, but if I shift, the problem occurs.
Any ideas?!
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Post by memmek2k on Dec 12, 2013 9:09:35 GMT -6
Possible nasioc thread of interest that you've probably been reading already. I would double check the fluid (amount and color) and try relubing the clutch pedal linkage. That stupid thing is ass backwards and a source of all sorts of weird clutch issues on top of the one Eddie and I had. I wouldn't be surprised if it's throw out bearing related, either.
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Post by memmek2k on Dec 12, 2013 9:36:06 GMT -6
Reading that nasioc thread, it sounds like: - it's hard to get a tech to reproduce, you'll need to ride with them.
- Might be clutch fork lubrication related, will need to replace
- Might be throwout bearing related, may cause excessive wear, will need to replace clutch assembly
If turns out to be the last one, do you mind if I compare our clutch feel afterwards? I have a sneaking suspicion mine is further along than I think it is, and that might have caused my firewall cracks with a difficult throw.
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Post by memmek2k on Dec 12, 2013 12:09:44 GMT -6
Possible solution from that thread, if you end up replacing the clutch at not-the-dealer, might be worth putting one of these in. Coming from electric motors, having a completely floating bearing is highly odd and asking for trouble. But no one has verified this actually solves any issues yet. :\
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smoke
Subie Newbie
Posts: 43
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Post by smoke on Dec 13, 2013 9:03:30 GMT -6
My car does this too. Happens if I go wot through a couple gears. I read through a ton of Nasioc threads and never found a fix. I basically just pump the clutch pedal a few times and it goes away. Haven't taken it to a dealer yet because I'm assuming they will somehow blame it on mods
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smoke
Subie Newbie
Posts: 43
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Post by smoke on Dec 13, 2013 9:31:28 GMT -6
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smoke
Subie Newbie
Posts: 43
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Post by smoke on Dec 13, 2013 9:42:51 GMT -6
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Post by memmek2k on Dec 13, 2013 10:15:37 GMT -6
I'm leaning towards the throwout bearing. Odd that it seems to only happen on 2011+ though, since we should have the same design. I tried the high-rpm shifting thing today on the way to work and didn't notice anything.
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Post by xti on Dec 13, 2013 15:58:10 GMT -6
Yeah, I'm thinking they'll just tell me I'm screwed because I modded the car. I haven't gone to a dealer either. That's why I went to a mechanic buddy's shop instead.
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Post by bustedknuckles on Dec 31, 2013 16:39:12 GMT -6
Bleed the system. First. Cheapest place to start.
Possible throw out bearing. You can test it by watching vibration on shift fork while driving I imagine.
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Post by Deleted on Jan 3, 2014 9:13:09 GMT -6
bustedknuckles you need to update your avatar pic! New car, new pic! LOL! xti did you ever get this figured out?
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