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SBC Fiero Clutch Issue by 87GTSleeper
Started on: 10-15-2004 08:45 PM
Replies: 13
Last post by: jelly2m8 on 10-18-2004 01:26 AM
87GTSleeper
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Report this Post10-15-2004 08:45 PM Click Here to See the Profile for 87GTSleeperSend a Private Message to 87GTSleeperDirect Link to This Post
OK, now the only thing stopping me from driving my car is the clutch. It's driving me nuts.

I have a 5sp Getrag and a Centerforce clutch mated to my SBC. I cannot for the life of me get the clutch to disengage. New clutch pedal, new master cylinder and rebuilt slave cylinder. I bought a new slave but the cast peice of crap broke when I was bleeding it so I put the innards in my old slave and it does not leak. Anyway, I feel confident that it is bled well, done according to Archie-ism, although I am not certain since it don't work.

It kind of looks like my slave shaft or pin (whatever it's called) fully extends before disengaging the clutch fully. This troubles me, big time.

Could I have hosed something when I installed the clutch on the flywheel? Other than putting the clutch plate in backward (don't think I did), what could I have done wrong?

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Oreif
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Report this Post10-15-2004 08:52 PM Click Here to See the Profile for OreifClick Here to visit Oreif's HomePageSend a Private Message to OreifDirect Link to This Post
There was another thread about this and If I remember correctly it had something to do with the actual clutch disk being backwards.
Are you sure the fork isn't bent that pushes on the pressure plate?
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87GTSleeper
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Report this Post10-15-2004 10:02 PM Click Here to See the Profile for 87GTSleeperSend a Private Message to 87GTSleeperDirect Link to This Post
I'm not sure of anything at this point. I do know that my clutch worked fine when I had the V6. I don't really think I put the clutch disk in backwards but I can't swear to it. I hate to think about pulling the engine to check only to find it installed correctly.

Can anyone tell from this picture if the clutch disk is backwards?

Thanks.

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tstroud
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Report this Post10-15-2004 11:07 PM Click Here to See the Profile for tstroudSend a Private Message to tstroudDirect Link to This Post
It looks right in that picture, as far as I can tell.
Some people have had to make a new push rod that was longer. I believe they used a SBC pushrod and shortened it.
Try making one a little longer (1/4 inch or so) and see if that helps it to fully disengage.
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87GTSleeper
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Report this Post10-15-2004 11:10 PM Click Here to See the Profile for 87GTSleeperSend a Private Message to 87GTSleeperDirect Link to This Post
Good idea. That will be my next attempt. Thanks for the tip. +'s.
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hooter
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Report this Post10-16-2004 02:16 AM Click Here to See the Profile for hooterSend a Private Message to hooterDirect Link to This Post
I'm almost positive that the rod needs to be lenthened by the thickness of the adapter plate about 1 inch or so. let us know how this works,,
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$Rich$
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Report this Post10-16-2004 09:47 AM Click Here to See the Profile for $Rich$Send a Private Message to $Rich$Direct Link to This Post
it needs to be 3/4 to 1" longet than stock
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87GTSleeper
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Report this Post10-16-2004 09:57 AM Click Here to See the Profile for 87GTSleeperSend a Private Message to 87GTSleeperDirect Link to This Post
Man, I love a consensus! I'm headed to get a longer rod now. Thanks for help guys.
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tstroud
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Report this Post10-16-2004 10:18 PM Click Here to See the Profile for tstroudSend a Private Message to tstroudDirect Link to This Post
I was just guessing as I never had to change my pushrod, it worked the way it is.
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jelly2m8
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Report this Post10-16-2004 10:25 PM Click Here to See the Profile for jelly2m8Send a Private Message to jelly2m8Direct Link to This Post
I've installed 5 of Archie's kits on a manual swap, never had to lengthen a slave actuator rod. There's no actual need to lengthen the rod, that's the reason the flywheel is as thick as it is, to place the clutch in the proper position inside the bell housing.

No offense, but like I've said before, making a longer / shorter rod than stock is a bandaid to fix the problem, but if that's working for ya, run with it.

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tampafiero
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Report this Post10-17-2004 06:08 PM Click Here to See the Profile for tampafieroSend a Private Message to tampafieroDirect Link to This Post
Yep, I tried everything too. As long as you are getting 3/4" stroke on the slave, there is nothing else external that you can look at. I also took some pictures, and I can say it is very hard to tell from a shot like that. You have to close in on the spline. The wrong side is kinda flat, while the correct side (looking at it like you have it) has a chamfer in it. I pulled the engine out because there was nothing else to look at.
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87GTSleeper
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Report this Post10-17-2004 08:38 PM Click Here to See the Profile for 87GTSleeperSend a Private Message to 87GTSleeperDirect Link to This Post
It's fixed. I used an inch longer rod that I made and still did not have full travel in the slave cylinder. Ultimately, I took the clutch pedal off and bent the bracket with the pin that connects to the banjo back to give the clutch pedal more travel before it hits the floor. It made my pedal sit slightly higher than the brake pedal and now the clutch engages at about halfway.

Thanks for the tips, guys.

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p8ntman442
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Report this Post10-18-2004 12:40 AM Click Here to See the Profile for p8ntman442Click Here to visit p8ntman442's HomePageSend a Private Message to p8ntman442Direct Link to This Post
also check your clutch arm that the slave cyl pushes on, just had to weld mine this weekend, to get my clutch to disengage, and with a new clutch that may be harder to press, you may have bent/cracked the arm without knowing it. I also went to a longer pushrod, but my sc bracket is a 4cyl modded to fit a v6, so that dosent really apply to this situation. Good luck.
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jelly2m8
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Report this Post10-18-2004 01:26 AM Click Here to See the Profile for jelly2m8Send a Private Message to jelly2m8Direct Link to This Post
 
quote
Originally posted by 87GTSleeper:

Ultimately, I took the clutch pedal off and bent the bracket with the pin that connects to the banjo back to give the clutch pedal more travel before it hits the floor. It made my pedal sit slightly higher than the brake pedal and now the clutch engages at about halfway.

That's how the clutch pedal should sit, higher than the brake pedal. In fact it should sit a good 3/4" higher then the brake pedal.

Cool bean's that ya got it figured out!

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