follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Speed By Design
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > Technical Topics > DIY (Do-It-Yourself) Guides

DIY (Do-It-Yourself) Guides For all DIYs.


User Tag List

Reply
 
Thread Tools Search this Thread
Old 02-04-2016, 01:11 AM   #309
xsl27x
Member
 
Join Date: Jul 2015
Drives: 2015 Scion FRS, Firestorm
Location: Lexington Park, MD
Posts: 33
Thanks: 4
Thanked 14 Times in 10 Posts
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by Captain Curt View Post
What's the difference between the two? Does one just return it and the other assists?

Edit: It's late. It just re-read your comment and it answered my question.
Edit 2: Do you need to dial-in/verify the clutch after the slave swap or the assist spring?
You should check engagement after the cylinder swap. I believe it was covered several pages back, but I remember the reason being that the pedal will sit closer to the floor after swapping to the smaller cylinder. If you've adjusted the clutch pedal to the bare minimum before the swap, you may run into the clutch not fully disengaging after the swap, so you would need to adjust pedal height a little higher.

I didn't have any issues after swapping mine, but I had initially adjusted it level to the brake pedal beforehand.

Sent from my LG-D800 using Tapatalk
xsl27x is offline   Reply With Quote
Old 02-04-2016, 01:23 AM   #310
Ultramaroon
義理チョコ
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,825
Thanks: 52,063
Thanked 36,469 Times in 18,894 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by Captain Curt View Post
What's the difference between the two? Does one just return it and the other assists?

Edit: It's late. It just re-read your comment and it answered my question.
Edit 2: Do you need to dial-in/verify the clutch after the slave swap or the assist spring?
No worries. There isn't a "need" for adjustment if only the spring has been removed however, once it's out, the pedal may feel sloppy at the top. Some people find it annoying. It helps to adjust the cruise cancel switch to take up the play in the clevis pin. Just make sure the pushrod is able to fully extend from the master cylinder. The ball will rest against the washer/retaining clip.

If you haven't already adjusted the pedal travel, get in there and play with that. IMO, it's important to get comfortable with clutch adjustment and what it can do for driveability.
__________________
Ultramaroon is offline   Reply With Quote
Old 02-04-2016, 01:32 AM   #311
Ultramaroon
義理チョコ
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,825
Thanks: 52,063
Thanked 36,469 Times in 18,894 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by xsl27x View Post
You should check engagement after the cylinder swap. I believe it was covered several pages back, but I remember the reason being that the pedal will sit closer to the floor after swapping to the smaller cylinder. If you've adjusted the clutch pedal to the bare minimum before the swap, you may run into the clutch not fully disengaging after the swap, so you would need to adjust pedal height a little higher.

I didn't have any issues after swapping mine, but I had initially adjusted it level to the brake pedal beforehand.
It's actually the opposite of this. All other things being equal, the narrower bore in the slave results in greater travel at the output. Having it adjusted even with the brake pedal is "close enough"

The slave cylinder has no effect on the pedal travel; self-adjusting hydraulic system.
__________________
Ultramaroon is offline   Reply With Quote
Old 02-18-2016, 08:53 PM   #312
angadam
Member
 
Join Date: Nov 2015
Drives: 14 BRZ Limited
Location: Toledo
Posts: 34
Thanks: 36
Thanked 16 Times in 10 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by xsl27x View Post
I understand if you've never worked on a car before, but it's seriously easier than changing oil. Cleaner, faster, cheaper, and no jacking up the car!

Hell, I'll drive to anyone in MD and do it for em for a beer, haha.

Sent from my LG-D800 using Tapatalk
Im in NW Ohio and I plan on doing this mod tomorrow. As a mechanic I second or third or whatever number I am saying its a simple job and I would be willing to help anyone in the Ohio, Michigan, Indiana region....I just like road trips.
angadam is offline   Reply With Quote
The Following 2 Users Say Thank You to angadam For This Useful Post:
Ultramaroon (02-18-2016), xsl27x (02-18-2016)
Old 04-26-2016, 11:56 AM   #313
tobin
Senior Member
 
tobin's Avatar
 
Join Date: Jun 2013
Drives: '13 BRZ
Location: CT
Posts: 485
Thanks: 314
Thanked 330 Times in 155 Posts
Mentioned: 6 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by Ultramaroon View Post
It's actually the opposite of this. All other things being equal, the narrower bore in the slave results in greater travel at the output. Having it adjusted even with the brake pedal is "close enough"

The slave cylinder has no effect on the pedal travel; self-adjusting hydraulic system.
Sorry to ask a question that was probably already covered, but why does the pedal height need to be lowered before doing the slave swap? What would happen if the pedal height was not adjusted at any point in this procedure?
tobin is offline   Reply With Quote
Old 04-26-2016, 01:40 PM   #314
Ultramaroon
義理チョコ
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,825
Thanks: 52,063
Thanked 36,469 Times in 18,894 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by tobin View Post
Sorry to ask a question that was probably already covered, but why does the pedal height need to be lowered before doing the slave swap? What would happen if the pedal height was not adjusted at any point in this procedure?
If the pedal is set really high, like the way the 13s were delivered, I worry that the extra travel might damage the pressure plate. I have zero evidence to confirm this but want to err on the cautious side.

Either way, the touch/catch point will rise, not dramatically but it's noticeable.
__________________
Ultramaroon is offline   Reply With Quote
The Following User Says Thank You to Ultramaroon For This Useful Post:
tobin (04-26-2016)
Old 04-29-2016, 10:57 PM   #315
jonboy99
Senior Member
 
jonboy99's Avatar
 
Join Date: Apr 2013
Drives: Black Panda BRZ
Location: Norf London, innit
Posts: 154
Thanks: 59
Thanked 36 Times in 28 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
So, anyone else f*cked this up yet? Everything seemed to go well but I have a pedal that just stays stuck to the floor and needs pulling up. I've bled brakes before after fitting new hoses but obviously cocked something up here. How much of a hassle is a bench bleed?
jonboy99 is offline   Reply With Quote
Old 04-29-2016, 11:39 PM   #316
Ultramaroon
義理チョコ
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,825
Thanks: 52,063
Thanked 36,469 Times in 18,894 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by jonboy99 View Post
So, anyone else f*cked this up yet? Everything seemed to go well but I have a pedal that just stays stuck to the floor and needs pulling up. I've bled brakes before after fitting new hoses but obviously cocked something up here. How much of a hassle is a bench bleed?
Did you run the reservoir dry? Don't panic.
__________________
Ultramaroon is offline   Reply With Quote
Old 04-30-2016, 11:45 AM   #317
jonboy99
Senior Member
 
jonboy99's Avatar
 
Join Date: Apr 2013
Drives: Black Panda BRZ
Location: Norf London, innit
Posts: 154
Thanks: 59
Thanked 36 Times in 28 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Nope. See if you can guess what I did?

Sent from my Nexus 5 using Tapatalk
jonboy99 is offline   Reply With Quote
Old 04-30-2016, 01:49 PM   #318
Ultramaroon
義理チョコ
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,825
Thanks: 52,063
Thanked 36,469 Times in 18,894 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by jonboy99 View Post
Nope. See if you can guess what I did?

Sent from my Nexus 5 using Tapatalk
Jeez! I was all worried about you last night!

I'll guess you forgot to use both bolts in the slave so it swung sideways.
__________________
Ultramaroon is offline   Reply With Quote
Old 04-30-2016, 07:50 PM   #319
jonboy99
Senior Member
 
jonboy99's Avatar
 
Join Date: Apr 2013
Drives: Black Panda BRZ
Location: Norf London, innit
Posts: 154
Thanks: 59
Thanked 36 Times in 28 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Ultramaroon View Post
Jeez! I was all worried about you last night!

I'll guess you forgot to use both bolts in the slave so it swung sideways.
Even worse - didn't ensure the piston was located in the clutch case lever thing - so when the pedal was pressed, the piston just poked out into free air. I'm lucky the piston didn't explode out from the cylinder and spray brake fluid all over the firewall! Stupid, although to be fair there's a couple of pipes which hide things from view a little. Clutch working fine now. Need to adjust the pedal height down a lot, but already feeling much more natural. Thanks for the great guide!

*edit - now got the clutch height sorted, feels awesome, the way it should have been stock. Best mod so far without a doubt.

Last edited by jonboy99; 04-30-2016 at 09:24 PM.
jonboy99 is offline   Reply With Quote
The Following User Says Thank You to jonboy99 For This Useful Post:
Ultramaroon (04-30-2016)
Old 04-30-2016, 11:46 PM   #320
Ultramaroon
義理チョコ
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,825
Thanks: 52,063
Thanked 36,469 Times in 18,894 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by jonboy99 View Post
Even worse - didn't ensure the piston was located in the clutch case lever thing - so when the pedal was pressed, the piston just poked out into free air. I'm lucky the piston didn't explode out from the cylinder and spray brake fluid all over the firewall! Stupid, although to be fair there's a couple of pipes which hide things from view a little. Clutch working fine now. Need to adjust the pedal height down a lot, but already feeling much more natural. Thanks for the great guide!

*edit - now got the clutch height sorted, feels awesome, the way it should have been stock. Best mod so far without a doubt.
I've done exactly what you did. Man, it gets everywhere. Did you get all the fluid cleaned out from underneath the boot?
__________________
Ultramaroon is offline   Reply With Quote
Old 05-01-2016, 12:44 PM   #321
jonboy99
Senior Member
 
jonboy99's Avatar
 
Join Date: Apr 2013
Drives: Black Panda BRZ
Location: Norf London, innit
Posts: 154
Thanks: 59
Thanked 36 Times in 28 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Ultramaroon View Post
I've done exactly what you did. Man, it gets everywhere. Did you get all the fluid cleaned out from underneath the boot?
No, didn't bother. Maybe I should sometime, but the boot definitely didn't feel under any pressure - easy to squash so not full of fluid. I'll do it next time i'm in a maintenance mood.
jonboy99 is offline   Reply With Quote
Old 05-22-2016, 10:26 AM   #322
tobin
Senior Member
 
tobin's Avatar
 
Join Date: Jun 2013
Drives: '13 BRZ
Location: CT
Posts: 485
Thanks: 314
Thanked 330 Times in 155 Posts
Mentioned: 6 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by ck-GT86 View Post

Bleeding the Clutch Fluid

Note: You definitely need another body for this process

1. The 8mm drain plug on the new slave cylinder should be sealed, tighten if not.

2. Remove master cylinder cap and refill with brake fluid

3. Seal the cap

4. Loosen the 8mm drain plug on slave cylinder

5. Have assistant press clutch to the floor, DO NOT bring clutch pedal back up

6. Tighten drain plug, then have assistant manually bring pedal up

7. Loosen drain plug, repeat process until bubbles have escaped.
Can someone please verify the bleeding instructions? The ones listed above are different than the original post.

OP: Pedal down, loosen valve, tighten valve, pedal up

ck-GT86: loosen valve, pedal down, tighten valve, pedal up

tobin is offline   Reply With Quote
 
Reply

Tags
clutch line, slave cylinder

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Clutch Engagement Improved! enjoyminutemaid Engine, Exhaust, Transmission 53 11-07-2018 06:31 PM
Can steering feel, tactility, be improved? Without sacrificing adjustability? Trettiosjuan Suspension | Chassis | Brakes -- Sponsored by 949 Racing 101 08-16-2016 08:14 PM
Aftermarket Clutch Master and Slave? Yruyur Engine, Exhaust, Transmission 5 07-27-2013 10:22 AM
Hate the feel of the clutch FRSGeek Engine, Exhaust, Transmission 18 07-10-2013 01:24 PM
Clutch feel? Shit Luck Engine, Exhaust, Transmission 5 04-21-2013 05:32 PM


All times are GMT -4. The time now is 01:59 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.