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Registered User
Join Date: Feb 2011
Location: San Antonio, TX
Posts: 122
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Odd clutch problem
Got the engine back in the car today and fired up. When i went to push down the clutch pedal, it went about 3/4ths of the way to the floor then it was rock solid, i couldn't move it another inch...
I can pull the pedal back up to its normal place and push it back down, it's not moving any fluid, and it won't go past the exact same spot... Occasionally i can get it past, but its not disengaging the clutch just like there isn't any fluid in it at all..... What's is going on with it/????/ I've been looking and will continue to search but any tips or insight from anybody?
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Early 1985 944. I like Bacon |
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11-03-2011, 12:05 PM
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Banned
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Posts: 683
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Still got a rubber center clutch?
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11-03-2011, 01:54 PM
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Registered User
Join Date: Feb 2011
Location: San Antonio, TX
Posts: 122
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nope.
its a hydraulic issue somewhere...
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Early 1985 944. I like Bacon |
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11-03-2011, 03:06 PM
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Banned
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Quote:
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11-03-2011, 03:24 PM
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Registered User
Join Date: Feb 2011
Location: San Antonio, TX
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I was in a bit of a rush earlier which is why i didn't spell it out for you.
Get in the car, push the clutch in, it will catch. You can tell your moving fluid, but the clutch doesn't disengage... Let it up, this time when you push it down it will go half way to the floor before you get any pressure from the fluid. This time you have to pull the clutch pedal up as it stays down.... The third time when you push it down, straight to the floor... After a time or two of that it will hit a hard spot about 2" above the floor that you can not physically push past... Atleast i can't i don't want to break anything or bend anything. So please tell me how i am going to fix this issue by having a rubber clutch???? When you get all snappy like that you drive people away from the board. No need to do that.
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Early 1985 944. I like Bacon |
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11-03-2011, 04:42 PM
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1984 porsche 944 na
Join Date: Aug 2008
Location: Westfield NJ
Posts: 306
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Did you remove the clutch slave cylinder when you took the engine out? I would get under and make sure the rod on the slave cylinder is straight. And while you are there you can try and bleed the system to see if you are moving fluid. If you removed the clutch tube that is in the back of your motor that connects to the slave you may have kinked it. Look straight up with the starter out above your slave cylinder and it should be attatched to the motor with a bracket and 2 screws
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1984 Red NA/Sold 1984 Gray NA/Sold 1986 Red NA 1986 Gray NA |
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11-03-2011, 05:55 PM
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+1.
Yeah, have someone push the pedal as you look in through the inspection port on the bellhousing and see if anything's moving. If nothing is moving, then open the bleeder and see if the pedal travels normally then - without obstructions (it should just go to the floor with little effort). That oughta tell you if it's a problem with the clutch internals, or a hydraulic problem.
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83 944 NA - Black on black 86 951 - Red - SOLD 7/21 16 Ford Expedition He who hesitates is lost. |
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11-03-2011, 06:06 PM
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Registered User
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Location: San Antonio, TX
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slave was not removed... but looks straight.
ill try bleeding again... ill report with my findings
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Early 1985 944. I like Bacon |
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11-04-2011, 08:38 AM
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Banned
Join Date: Apr 2011
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Bad seal in one of the cylinders. Check for leaks after working the pedal back and forth a dozen times.
Last edited by fwayfarer; 11-04-2011 at 04:48 PM.. |
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11-04-2011, 09:02 AM
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Registered
Join Date: May 2010
Location: Erie, PA
Posts: 237
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Are the slave and master original? My 86 had a leaky brake master which I replaced, then the following summer I ended up replacing the clutch master and slave because of leaks. As I understand it both should be replaced at the same time.
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86NA944 |
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11-04-2011, 11:29 AM
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944 addict
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When you reinstalled the clutch assembly (pressure plate, disk, throwout bearing with appropriate spacers) did you make sure the whole assembly was straight with the "proper" alignment tool? If it was the wrong one or slightly askew when you installed the clutch or the pilot bearing was not installed straight you'll have binding problems. Also was the disk installed with the proper face going forward? Did the clutch fork install go smoothly and are U sure that it is slid around the collar on the throwout bearing? Just a list of things that can cause problems if missed. Good luck and don't be reluctant to share. That's what this forum is all about.....sharing.
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3 944's, 2 Boxsters and one Caman S, and now one 951 turbo. Really miss the Cayman. Some people try to turn back their "odometers." Not me. I want people to know 'why' I look this way. I've traveled a long way and some of the roads weren't paved. |
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11-05-2011, 08:36 AM
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Registered User
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Location: San Antonio, TX
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Quote:
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Did i miss something here? I am going to go see if i can watch the rod move at all, but im fairly sure its not going to. I have no clutch movement at all.
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Early 1985 944. I like Bacon |
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11-06-2011, 01:39 PM
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Registered User
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Location: San Antonio, TX
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The rod is stuck out and is not moving... Clutch has no resistance till it hits the hard place, then it usually will leak down....
Bad slave cylinder?
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Early 1985 944. I like Bacon |
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11-06-2011, 01:58 PM
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Is the "hard place" there when you have the bleeder open? I'm wondering if it's just the spring on the pedal.
If after bleeding, the pedal sticks to the floor when depressed, it sounds like you have air in the system - easy to do the way the pickup tube fits onto the brake fluid resevoir. Is air always coming out when you bleed the clutch? You never quite get all the air out (where you can go more than 30 seconds with no air spurts)? Due to the design, it's really tough to bleed the clutch pumping the pedal, and not suck air. I had problem after problem. Finally I broke down and got a Motive Power Bleeder. Now it takes 5 minutes or less.
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83 944 NA - Black on black 86 951 - Red - SOLD 7/21 16 Ford Expedition He who hesitates is lost. |
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11-06-2011, 06:25 PM
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Registered User
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Location: San Antonio, TX
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Nope, if you open the bleeder, the clutch goes straight to the floor.
I got a little bit of air out the first couple of times, but after that it was almost all fluid... I'm begining to wonder if the slave went bad? It's hard to believe it went bad just like that. Clutch worked just fine 2 months ago when the engine went pop. Now i've got nothing at all... 2 months ago i had a good clutch and bad engine. Now ive got a good engine and bad clutch?
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Early 1985 944. I like Bacon |
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11-06-2011, 07:53 PM
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Quote:
What is the clutch doing guring each of these three-four times the pedal is depressed? Is the rod from the slave pushing the clutch arm at all? If it does push, does it stop at a certain point? What's going on at the slave when the pedal hits the hard spot?
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83 944 NA - Black on black 86 951 - Red - SOLD 7/21 16 Ford Expedition He who hesitates is lost. |
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11-06-2011, 08:56 PM
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Registered User
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Location: San Antonio, TX
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The rod is stuck out, it never moves no matter what you do.
I am having a hard time understanding how this works. When you depress the clutch, shouldn't the rod push out then? If so what pushes the rod back into the slave cylinder?
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Early 1985 944. I like Bacon |
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11-07-2011, 06:19 AM
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Banned
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The rod probably isn't out irl. Its supposed to fit into the "cup" on the clutch fork and the pressure of the srping loaded pressure plate is supposed to push the pin back into the slave to return the pedal. At this point it might be best to seek professional assistance if you aren't familiar enough to really carry out these troubleshooting steps because its going to be very difficult for anyone to teach you as you go along. Try visiting Clark's garage - IM on my phone so I cant get the link.
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11-07-2011, 08:49 AM
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winter-hater club member
Join Date: Oct 2003
Location: salt lake city, utah
Posts: 24,705
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i have seen this exact problem. and repaired it. the clutch assembly was put together wrong and the spacers on the throwout bearing finally gave way. thus, the slave pushrod was fully extended, along with the clutch fork, but wasn't actually depressing the pressure plate. the fix was to disassemble the whole thing and replace the clutch.
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2000 Corvette - ????, 2007 Buell XB9R - Astrid, 1996 Discovery - Piglet, 2000 Forester "COOL PRIUS!" - Nobody Ever Last edited by nynor; 11-07-2011 at 10:36 AM.. |
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11-07-2011, 10:15 AM
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Registered User
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Quote:
Thanks though. Clarks-garage has some decent info sure. But alot of it isn't much more than a basic mechanic could figure out. Quote:
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Early 1985 944. I like Bacon |
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11-07-2011, 08:13 PM
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My 951
My 83 NA
Porsche 944 NA
1986 Porsche 951
