Clutch/tranny issue diagnostic help - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

yomny · 08-25-2015, 06:57 AM

Yeah I never did think it was supposed to be that way but a couple of other locals told me their 6 puck behaves similarly. Then again I don't have a six puck. I got the first gear to misbehave yesterday and when trying to shift into the others straight out from 1st, the rest went it smoother and improved as I kept going through them, weird. I'll pull this out eventually and will see what's going on. I know for sure a mild clutch shouldn't be behaving like this. It certainly isn't as hot as after completing a few hot laps or drag racing, it's just city traffic and no longer than 1 hr drive.

yomny · 08-25-2015, 06:58 AM

Quote:

Originally Posted by Ultramaroon

Hmmm... That just doesn't seem right in any case. Sticky for real, or warping?

Wouldn't a warping cause the behavior to be constant as with a brake rotor?

nickmerronesucks · 08-25-2015, 07:22 AM

Just installed this clutch too...should I adjudt my pedal before driving it?

Ultramaroon · 08-25-2015, 01:03 PM

Quote:

Originally Posted by yomny

Wouldn't a warping cause the behavior to be constant as with a brake rotor?

The friction disc can deform when it's hot and then return to the correct shape when it cools. If it's common with those clutches I'm thinking it's a design flaw.

A hot spot on the flywheel is more analogous to a warped rotor. That's permanent.

Ultramaroon · 08-25-2015, 01:08 PM

Quote:

Originally Posted by yomny

Yeah I never did think it was supposed to be that way but a couple of other locals told me their 6 puck behaves similarly. Then again I don't have a six puck. I got the first gear to misbehave yesterday and when trying to shift into the others straight out from 1st, the rest went it smoother and improved as I kept going through them, weird. I'll pull this out eventually and will see what's going on. I know for sure a mild clutch shouldn't be behaving like this. It certainly isn't as hot as after completing a few hot laps or drag racing, it's just city traffic and no longer than 1 hr drive.

While stopped with the engine running, pick a gear and repeat engaging-disengaging while at the same time lifting the pedal a tiny bit each time. You will find the exact point at which the clutch makes contact because it won't go into gear.

If that distance changes between hot and cold conditions, something is warping.

yomny · 08-25-2015, 02:49 PM

I think then something's warped because without doing this I know my engagement point is very different when cold vs hot. I'd say about 1/2 to 3/4". So basically the clutch is crap lol, I wouldn't mind changing it if I knew that's the problem. I guess I have to find a decent shop and just check for stuff. Really appreciate your help man.

yomny · 08-25-2015, 04:23 PM

I need your help, more than before, now lol. Something's definitely not right, wanted see what my options were in case I need to replace the clutch disk, pressure plate or flywheel. I was looking at the South bend clutch but not sure if my ACT streelite FW would work with it, don't know anything preventing it but, they may work better with steel flywheels. Exedy, im a little confused, everyone says Stg 1, is that the OEM replacement clutch, as I can't find anything but the OEM, and is that good for low boost? Don't really want to spend over 700 but then I guess if I have to I'll push myself, maybe the price point of my ACT is what is giving me these issues now. I'll be taking it in to see what could be my problem and possibly replacing the parts but I didn't want to stick to ACT giving my current experience. Any input would really save this guy a lot sleep deprivation and headaches

@Ultramaroon
@cividrivr

yomny · 08-25-2015, 04:26 PM

Quote:

Originally Posted by nickmerronesucks

Just installed this clutch too...should I adjudt my pedal before driving it?

I'd go for a drive and see where the engagement point is.. I think the pedal coming from the floor up, it should be about 3" from it or so but this is subjective and you may like it to engage closer to the floor.

Ultramaroon · 08-25-2015, 05:34 PM

Quote:

Originally Posted by yomny

Any input would really save this guy a lot sleep deprivation and headaches

I don't remember the exact numbers but I know a couple guys running blowers just fine with the stock clutch. I have zero firsthand experience with aftermarket clutches on this beast. My $0.02 - go back to stock if you can.

Someone else will chime in and tell me I'm full of shit, tho. @civicdrivr?

GsxrMe · 08-25-2015, 06:40 PM

Hey this sounds really dumb. Jack the rear end of your car up. Check all your transmission mounts, and your drive shaft mount. Make sure they're tight. That's free

cdrazic93 · 08-25-2015, 06:51 PM

Quote:

Originally Posted by Ultramaroon

Someone else will chime in and tell me I'm full of shit, tho

Youre full of shit.

Ultramaroon · 08-25-2015, 07:27 PM

Quote:

Originally Posted by cdrazic93

Youre full of shit.

Haha... see!

yomny · 08-25-2015, 09:48 PM

Lol well my stock clutch held up but not really much, started to slip at 9psi.

Ultramaroon · 08-25-2015, 10:06 PM

Quote:

Originally Posted by yomny

Lol well my stock clutch held up but not really much, started to slip at 9psi.

Old people will get it.

08-25-2015, 06:57 AM	#29
yomny Senior Member Join Date: Jul 2012 Drives: 2013 FRS Whiteout Location: MIA Posts: 1,545 Thanks: 557 Thanked 469 Times in 340 Posts Mentioned: 33 Post(s) Tagged: 5 Thread(s)	Yeah I never did think it was supposed to be that way but a couple of other locals told me their 6 puck behaves similarly. Then again I don't have a six puck. I got the first gear to misbehave yesterday and when trying to shift into the others straight out from 1st, the rest went it smoother and improved as I kept going through them, weird. I'll pull this out eventually and will see what's going on. I know for sure a mild clutch shouldn't be behaving like this. It certainly isn't as hot as after completing a few hot laps or drag racing, it's just city traffic and no longer than 1 hr drive. __________________ GTX2867R, moto-tuned , tomei op , motiv fp , Invidia Q300 ti , Rota titan 17x9 +42 , nt555 255/40 , ST coilovers w/cascam , Hotchkis sways

08-25-2015, 07:22 AM	#31
nickmerronesucks Ned flanders Join Date: Mar 2014 Drives: 13 BRZ, 16 Hellcat, 22 Ram 2500 Location: Levittown PA Posts: 885 Thanks: 451 Thanked 362 Times in 254 Posts Mentioned: 3 Post(s) Tagged: 2 Thread(s)	Just installed this clutch too...should I adjudt my pedal before driving it? __________________ 797Performance.com

08-25-2015, 02:49 PM	#34
yomny Senior Member Join Date: Jul 2012 Drives: 2013 FRS Whiteout Location: MIA Posts: 1,545 Thanks: 557 Thanked 469 Times in 340 Posts Mentioned: 33 Post(s) Tagged: 5 Thread(s)	I think then something's warped because without doing this I know my engagement point is very different when cold vs hot. I'd say about 1/2 to 3/4". So basically the clutch is crap lol, I wouldn't mind changing it if I knew that's the problem. I guess I have to find a decent shop and just check for stuff. Really appreciate your help man. __________________ GTX2867R, moto-tuned , tomei op , motiv fp , Invidia Q300 ti , Rota titan 17x9 +42 , nt555 255/40 , ST coilovers w/cascam , Hotchkis sways

08-25-2015, 04:23 PM	#35
yomny Senior Member Join Date: Jul 2012 Drives: 2013 FRS Whiteout Location: MIA Posts: 1,545 Thanks: 557 Thanked 469 Times in 340 Posts Mentioned: 33 Post(s) Tagged: 5 Thread(s)	I need your help, more than before, now lol. Something's definitely not right, wanted see what my options were in case I need to replace the clutch disk, pressure plate or flywheel. I was looking at the South bend clutch but not sure if my ACT streelite FW would work with it, don't know anything preventing it but, they may work better with steel flywheels. Exedy, im a little confused, everyone says Stg 1, is that the OEM replacement clutch, as I can't find anything but the OEM, and is that good for low boost? Don't really want to spend over 700 but then I guess if I have to I'll push myself, maybe the price point of my ACT is what is giving me these issues now. I'll be taking it in to see what could be my problem and possibly replacing the parts but I didn't want to stick to ACT giving my current experience. Any input would really save this guy a lot sleep deprivation and headaches @Ultramaroon @cividrivr __________________ GTX2867R, moto-tuned , tomei op , motiv fp , Invidia Q300 ti , Rota titan 17x9 +42 , nt555 255/40 , ST coilovers w/cascam , Hotchkis sways

08-25-2015, 06:40 PM	#38
GsxrMe Senior Member Join Date: Jul 2015 Drives: Late 2014 Subaru BRZ Location: Cape Coral, FL Posts: 557 Thanks: 20 Thanked 183 Times in 139 Posts Mentioned: 5 Post(s) Tagged: 2 Thread(s)	Hey this sounds really dumb. Jack the rear end of your car up. Check all your transmission mounts, and your drive shaft mount. Make sure they're tight. That's free __________________ 2014 Subaru BRZ FBM Turbokit: GTX3076R - ECUTEK HRI FlexFuel tune - FBM 3" Turboback Exhaust - 550cc Injectors - Walbro 485 Fuel Pump - 4bar Map Sensor - FBM Oil Pan - ACT SB7-XTSS - AMSOIL all fluids - Forester XT Oil Cooler - Cusco engine, trans mounts - Whiteline rear differential bushings - Perrin shifter bushing - Firehawk 235/45/17 - AEM Failsafe

08-25-2015, 09:48 PM	#41
yomny Senior Member Join Date: Jul 2012 Drives: 2013 FRS Whiteout Location: MIA Posts: 1,545 Thanks: 557 Thanked 469 Times in 340 Posts Mentioned: 33 Post(s) Tagged: 5 Thread(s)	Lol well my stock clutch held up but not really much, started to slip at 9psi. __________________ GTX2867R, moto-tuned , tomei op , motiv fp , Invidia Q300 ti , Rota titan 17x9 +42 , nt555 255/40 , ST coilovers w/cascam , Hotchkis sways

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