DIY - Easy clutch grab adjustment (~10 mins) - Page 14 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Asurendra · 02-26-2013, 05:18 AM

Did this today, procedure was the same although a little awkward due to right hand drive, the clutch pedal isn't on a cam, the cylinder is directly above the pedal and kind of has like a housing around it. It was pretty slippery too, had to wipe it with a rag before I could get grip with just my fingers.

As per the rest of the post, once the small 12mm hex was loosened, I simply pushed clutch in and out until the master cylinder rod would twist, and gave it two and a half full turns (or so) until it was 1mm below the brake pedal, then adjusted the 14mm bolts for the sensor.

Thanks to OP! Cheers!

mnml10387 · 02-26-2013, 09:18 PM

This mod is so easy and so crucial. I had the same problem as everyone else, low gear shifts were not smooth at all. I only adjusted it where the clutch is a little higher than the brake pedal. Have to do more testing, but it feels a lot better. Thanks OP.

sinigang_guy · 02-26-2013, 11:25 PM

tried this when i got my car, but the play before friction point bothered me. will need to revisit this little mod again..

marky · 02-26-2013, 11:32 PM

need to do this.. i stalled on a 4 way stop

i was on a life time mission to let that never happen

did stall in the driveway but i was already park so it didnt count

CNK86 · 02-28-2013, 02:30 PM

I know it's already been discussed, but I just want to confirm that this mod moves the pedal start/finish position, and not just the pedal itself? If that doesn't make any sense, what I originally thought is that this would simply push in the clutch a little bit, so you'd essentially be riding the clutch forever.

BrianJC · 03-02-2013, 07:59 AM

Quote:

Originally Posted by CNK86

I know it's already been discussed, but I just want to confirm that this mod moves the pedal start/finish position, and not just the pedal itself? If that doesn't make any sense, what I originally thought is that this would simply push in the clutch a little bit, so you'd essentially be riding the clutch forever.

That's right. I don't know the technical term of it but think of the whole clutch range as a spectrum from 1-100, 100 is fully depressed, 1 is completely pressed down. The original friction point (catch point or grab point) is at somewhere between 40-60 of the whole clutch push spectrum. But adjusting the clutch pedal closer in line or even below the brake pedal you are moving the friction point from around 40-60 to somewhere like 20-40 (depends how far you adjust the clutch of course). Adjusting the pedal also FEELS like making the friction point smaller, say from 20-35, but I think it's just my mind playing tricks as it allows the engagement earlier so it kinda seems like the friction point range is smaller making it really easy to drive.

In other words, original factory setting you have to let the clutch go quite a bit before you can start pushing the gas pedal. With this DIY adjustment, you can literally lift the clutch just a bit and start to push the gas pedal right away. Hope that make some sense

smokeyFRS · 03-02-2013, 10:11 AM

Quote:

Originally Posted by CNK86

I know it's already been discussed, but I just want to confirm that this mod moves the pedal start/finish position, and not just the pedal itself? If that doesn't make any sense, what I originally thought is that this would simply push in the clutch a little bit, so you'd essentially be riding the clutch forever.

Check these links out. Hope this will help.

[ame="http://www.youtube.com/watch?feature=player_embedded&v=1EkJKjfIQ9A"]How to Adjust the Clutch on a Dodge Stealth or Mitsubishi 3000GT Non-Turbo: HD Video Tutorial - YouTube[/ame]

http://www.nicoclub.com/archives/how...ssan-370z.html

CNK86 · 03-02-2013, 09:15 PM

Awesome, thanks to the two above ^^. I can't figure out how to actually "thank" you, but if I do I will haha. Anyway, didn't wait for an answer, I got antsy and did it a few days ago lol, sure makes a big difference!

reeves · 03-03-2013, 04:30 PM

Can't believe I waited so long to do this adjustment!! It's SO MUCH better to drive now.. and I make smoother shifts as a result! Thanks to Koji & to JohnnyRocket for the video.

Just another tip on "turning the rod"... Not sure how much others had to press their clutch in to turn the rod, but mine's was REALLY easy to turn with just a tiny nudge down on the clutch (like 2-3mm). If I pressed it in more (or didn't press it at all), it was impossible to turn.

Lingy · 03-08-2013, 03:58 PM

Does anyone know if doing this adjustment would void the warranty?

so26 · 03-08-2013, 04:42 PM

Quote:

Originally Posted by Lingy

Does anyone know if doing this adjustment would void the warranty?

Don't give them the opportunity to void your warranty by simply not telling them about the adjustment if you do it. This is seriously the best advise.

Tt3Sheppard · 03-08-2013, 05:15 PM

Quote:

Originally Posted by BrianJC

That's right. I don't know the technical term of it but think of the whole clutch range as a spectrum from 1-100, 100 is fully depressed, 1 is completely pressed down. The original friction point (catch point or grab point) is at somewhere between 40-60 of the whole clutch push spectrum. But adjusting the clutch pedal closer in line or even below the brake pedal you are moving the friction point from around 40-60 to somewhere like 20-40 (depends how far you adjust the clutch of course). Adjusting the pedal also FEELS like making the friction point smaller, say from 20-35, but I think it's just my mind playing tricks as it allows the engagement earlier so it kinda seems like the friction point range is smaller making it really easy to drive.

In other words, original factory setting you have to let the clutch go quite a bit before you can start pushing the gas pedal. With this DIY adjustment, you can literally lift the clutch just a bit and start to push the gas pedal right away. Hope that make some sense

Agreed!

I adjusted mine slightly lower than brake pedal. From what I've noticed though is that it's much easier to burn the clutch with boots on.

JonnyRocket · 03-08-2013, 05:50 PM

Quote:

Originally Posted by Lingy

Does anyone know if doing this adjustment would void the warranty?

This adjustment is akin to sliding your seat closer, or adjusting your seat back. There's no reason it should void your warranty.

MmmDieselFumes · 03-08-2013, 06:54 PM

Quote:

Originally Posted by Tt3Sheppard

Agreed!

I adjusted mine slightly lower than brake pedal. From what I've noticed though is that it's much easier to burn the clutch with boots on.

02-26-2013, 11:25 PM	#185
sinigang_guy Member Join Date: Oct 2012 Drives: argento frs; 90 mustang gt Location: 619 Posts: 89 Thanks: 39 Thanked 22 Times in 18 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	tried this when i got my car, but the play before friction point bothered me. will need to revisit this little mod again.. __________________

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02-26-2013, 05:18 AM	#183
Asurendra Member Join Date: Jul 2012 Drives: 2012 Toyota GT86 Location: Rotorua, New Zealand Posts: 17 Thanks: 8 Thanked 6 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Did this today, procedure was the same although a little awkward due to right hand drive, the clutch pedal isn't on a cam, the cylinder is directly above the pedal and kind of has like a housing around it. It was pretty slippery too, had to wipe it with a rag before I could get grip with just my fingers. As per the rest of the post, once the small 12mm hex was loosened, I simply pushed clutch in and out until the master cylinder rod would twist, and gave it two and a half full turns (or so) until it was 1mm below the brake pedal, then adjusted the 14mm bolts for the sensor. Thanks to OP! Cheers!

02-26-2013, 09:18 PM	#184
mnml10387 Member Join Date: Jan 2013 Drives: 2013 Subaru BRZ Location: Miami, FL Posts: 61 Thanks: 23 Thanked 49 Times in 23 Posts Mentioned: 10 Post(s) Tagged: 1 Thread(s)	This mod is so easy and so crucial. I had the same problem as everyone else, low gear shifts were not smooth at all. I only adjusted it where the clutch is a little higher than the brake pedal. Have to do more testing, but it feels a lot better. Thanks OP.

02-26-2013, 11:32 PM	#186
marky Senior Member Join Date: Dec 2012 Drives: 2020 BRZ tS #54 Location: san diego ca Posts: 1,142 Thanks: 616 Thanked 824 Times in 407 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	need to do this.. i stalled on a 4 way stop i was on a life time mission to let that never happen did stall in the driveway but i was already park so it didnt count

02-28-2013, 02:30 PM	#187
CNK86 Member Join Date: Feb 2013 Drives: '13 Whiteout FR-S 6MT Location: Calgary, AB Posts: 10 Thanks: 0 Thanked 3 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I know it's already been discussed, but I just want to confirm that this mod moves the pedal start/finish position, and not just the pedal itself? If that doesn't make any sense, what I originally thought is that this would simply push in the clutch a little bit, so you'd essentially be riding the clutch forever.

03-02-2013, 09:15 PM	#190
CNK86 Member Join Date: Feb 2013 Drives: '13 Whiteout FR-S 6MT Location: Calgary, AB Posts: 10 Thanks: 0 Thanked 3 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Awesome, thanks to the two above ^^. I can't figure out how to actually "thank" you, but if I do I will haha. Anyway, didn't wait for an answer, I got antsy and did it a few days ago lol, sure makes a big difference!

03-03-2013, 04:30 PM	#191
reeves Senior Member Join Date: Jul 2012 Drives: BRZ Location: ATL, GA Posts: 1,021 Thanks: 289 Thanked 397 Times in 265 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	Can't believe I waited so long to do this adjustment!! It's SO MUCH better to drive now.. and I make smoother shifts as a result! Thanks to Koji & to JohnnyRocket for the video. Just another tip on "turning the rod"... Not sure how much others had to press their clutch in to turn the rod, but mine's was REALLY easy to turn with just a tiny nudge down on the clutch (like 2-3mm). If I pressed it in more (or didn't press it at all), it was impossible to turn.

03-08-2013, 03:58 PM	#192
Lingy Junior Member Join Date: Feb 2013 Drives: 2013 FR-S Asphalt Location: Vaughan, Ontario, Canada Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Does anyone know if doing this adjustment would void the warranty?

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