Recent Topics
5k OCI on Hyundai Sonata 2.0 Turbo
by syn_all_the_way
09/02/14 11:36 AM
Replaced cracked flexplate 95 Toyota T100
by chestand
09/02/14 11:19 AM
Snow tire/made in USA rant
by faramir9
09/02/14 11:13 AM
2011 Ram 1500 Differential and Transfer Case
by JasonK94Z
09/02/14 10:17 AM
Napa Gold
by Lubener
09/02/14 10:16 AM
Switching from Mobil 1 to Rotella T6 wise?
by jbl_91762
09/02/14 09:20 AM
Linux Mint - Grub rescue - Unmounted partition?
by 99Saturn
09/02/14 08:59 AM
Don't forget to remove your pictures from cloud...
by mrsilv04
09/02/14 08:53 AM
Help pick a winner
by Camprunner
09/02/14 08:24 AM
Economic high detergency oil
by buck91
09/02/14 08:17 AM
Ordered test kit from Blackstone
by Swift101
09/02/14 08:16 AM
ThinkWise
by stockrex
09/02/14 07:10 AM
Newest Members
SparkSVT, grumpyoldman, jbl_91762, PapasGuy, fanie
51170 Registered Users
Who's Online
84 registered (01rangerxl, aquariuscsm, ARCOgraphite, 6starprez, AandPDan, 8 invisible), 1862 Guests and 220 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51170 Members
64 Forums
218672 Topics
3448173 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Topic Options
#3279744 - 02/12/14 05:45 PM Clutch Master cylinder fluid level drop normal?
Drew99GT Online   happy


Registered: 10/11/02
Posts: 20620
Loc: Colorado Springs
Is it normal for the fluid level in a clutch hydraulic system to drop as the friction material on the pressure plate and disk wear away with usage, similar to what happens with the brake fluid level in cars as the pads wear?

Thanks!


Edited by Drew99GT (02/12/14 05:54 PM)

Top
#3279758 - 02/12/14 05:57 PM Re: Clutch Master cylinder fluid level drop normal? [Re: Drew99GT]
oldhp Offline


Registered: 06/28/12
Posts: 782
Loc: Southern Illinois
Yes, same principle.
_________________________
2014 Silverado LT 4.3 work truck.
2012 Equinox 2.4-Wife's Ride


Top
#3279794 - 02/12/14 06:25 PM Re: Clutch Master cylinder fluid level drop normal? [Re: Drew99GT]
fdcg27 Offline


Registered: 09/25/09
Posts: 9195
Loc: OH
The clutch master reservoir level won't drop all that much over the life of a disc in my experience.
If you're seeing much or continued drop, you have a leak.
If it isn't getting worse, don't sweat it.
Just add a little brake fluid as needed.
It won't be much.
_________________________
12 Accord LX 22K HGMO 0W-20
09 Forester 64K PU 5W-30
02 Accord 127K G-Oil 5W-30
01 Focus ZX3 98K Synpower 10W-30
95 BMW 318iC 146K Defy 10W-40

Top
#3279800 - 02/12/14 06:30 PM Re: Clutch Master cylinder fluid level drop normal? [Re: Drew99GT]
clinebarger Offline


Registered: 12/19/13
Posts: 182
Loc: Fort Worth, Texas
The Fingers on the Pressure Plate move out toward the Clutch Slave Cylinder in turn compressing the Slave Cylinder as the Clutch Disc wears, In theory the level should rise a little.
_________________________
1985 Chevy C20 Suburban LM7/4L60E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/Auto

Top
#3279843 - 02/12/14 06:51 PM Re: Clutch Master cylinder fluid level drop normal? [Re: clinebarger]
fdcg27 Offline


Registered: 09/25/09
Posts: 9195
Loc: OH
But this movement is very small.
The difference in thickness between a new disc and an unserviceable disc is very little, nothing like it is with brake pads.
_________________________
12 Accord LX 22K HGMO 0W-20
09 Forester 64K PU 5W-30
02 Accord 127K G-Oil 5W-30
01 Focus ZX3 98K Synpower 10W-30
95 BMW 318iC 146K Defy 10W-40

Top
#3280960 - 02/13/14 04:50 PM Re: Clutch Master cylinder fluid level drop normal? [Re: Drew99GT]
oldhp Offline


Registered: 06/28/12
Posts: 782
Loc: Southern Illinois
My bad.....thinking backwards. Fluid,if anything should rise. Yep.
_________________________
2014 Silverado LT 4.3 work truck.
2012 Equinox 2.4-Wife's Ride


Top
#3281023 - 02/13/14 05:48 PM Re: Clutch Master cylinder fluid level drop normal? [Re: Drew99GT]
Tones Offline


Registered: 11/28/03
Posts: 889
Loc: Houston, TX
I had one start leaking but showed no outward signs. I figured it out by pushing on the boot. It was full of fluid and held a little pressure.
_________________________
'11 Toyota Avalon
'11 Toyota Corolla
'10 Honda Civic
'13 Ford F-150 Supercab 5.0

Top
#3281789 - 02/14/14 10:49 AM Re: Clutch Master cylinder fluid level drop normal? [Re: Tones]
Drew99GT Online   happy


Registered: 10/11/02
Posts: 20620
Loc: Colorado Springs
Originally Posted By: Tones
I had one start leaking but showed no outward signs. I figured it out by pushing on the boot. It was full of fluid and held a little pressure.


The boot on the slave cylinder?

Top
#3340943 - 04/12/14 07:21 PM Re: Clutch Master cylinder fluid level drop normal? [Re: Drew99GT]
Tones Offline


Registered: 11/28/03
Posts: 889
Loc: Houston, TX
Yes, the boot on the slave cylinder was full of fluid.
_________________________
'11 Toyota Avalon
'11 Toyota Corolla
'10 Honda Civic
'13 Ford F-150 Supercab 5.0

Top