Georgia Fiero Club Forum
All Things Fiero => Tech Tips, Tech Questions => Topic started by: Donster on August 08, 2011, 08:13:39 am
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Seems that we both developed an issue on the same day;
The 84's brakes became spongy, although we just had them checked and bled recently, Anne says that every once-in-a-while she has to pump her brake pedal before getting resistance on the pedal, and her clutch pedal had a lot of tolerance (1/4 way down), before she felt resistance.
On the same day (driving to Dean's open house), my clutch pedal went all the way to the floor without any resistance and and the clutch would not engage.
AeroDonamic checked for leaks, nothing - I checked again at home, nothing.
As the brakes are more of a safety issue, I'm more worried about them, but of course I want both issues resolved, especially befor RFTH.
Does anyone have any ideas what could be causing these issues?
\D
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I don't have any ideas on the brakes other than air in the system. As for the clutch, different cars have different engagement points and different amounts of resistance on the pedal. My 88 is very soft compared to my 87 and your 85 is somewhere between the two.
Do you mean the 85's clutch wouldn't engage enough to make the car move?
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Parking brake adjustment (http://gafiero.org/docs/FieroBrakeAdjustment.pdf).
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Do you mean the 85's clutch wouldn't engage enough to make the car move?
The pedal just went all the way down to the floor without doing anything (zero resistance) and I could not shift (no engagement)
\D
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Parking brake adjustment (http://gafiero.org/docs/FieroBrakeAdjustment.pdf).
You think the e-brake has something to do with it?
\D
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The service bulletin says it can.
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Parking brake adjustment (http://gafiero.org/docs/FieroBrakeAdjustment.pdf).
You think the e-brake has something to do with it?
\D
It could with the brake, not the clutch. Did the clutch start working again? or did you get stranded. How is the fluid level in the master cylinders of both the brakes and the clutch? Give me a shout later and we'll see if we can figure it out.
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The service bulletin says it can.
I was talking about the spongy brake issue...
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Clutch pedal only failed me once on the way to Dean's on Saturday. My brakes don't really have an issue, only the brakes on the 84.
Don checked my levels and the master in the back. From the outside, all seems ok
\D
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The service bulletin says it can.
\D
I was talking about the spongy brake issue...
Gottcha
\D
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For the clutch issue...
Pull back the rubber boot from the end of the slave where the pushrod comes out. If there is no fluid in the boot (or leaked out anywhere else) the the problem will be with the master.
Pull back the carpet from under the dash, where the master pushrod goes through. Sometimes fluid can leak there, too.
For whatever reason, it sounds like the master piston bypassed the fluid for that one pedal stroke. Might be a piece of grit or something got caught and then got washed away to... elsewhere.
If you have to replace the master (or slave) get one of Rodney Dickman's units. They are easily the best quality units I have ever seen. (At least the master is. Haven't seen one of his slaves yet.)
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The slave on the 85 isn't that old. I put it on when I swapped to the Isuzu. If it's the slave leaking, just pick up the MR2 slave rebuild kit for about $10 and install it.
I have both a Dickman master and slave cylinder on the 87 and they work great. I've rebuilt 2 slaves with the MR2 kit and they work great, also.
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I'll check everything when I get home tonight
\D
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Got home and checked for leaks on both of them, couldn't find any. Levels on both are full, so right now it's a mystery.
Any place good to have them checked? I'm thinking about going to Tires Plus, as they have been doing great work for us on all of our cars.
\D
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As they say, Why go to the mountain when the mountain is coming to your place on Saturday?
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Good point - hehe ;D
\D
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Today, Anne could not get a gear in on the 84 (Muncy MY8), just wouldn't budge, even with the clutch pedal all the way down.
She let the car set for a moment and then all gears shifted fine.
Shift cables worn? Clutch worn out?
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OK, so here are all the things we have done to the 84 - starting a week before RFTH up to yesterday:
New clutch master AND slave (Lee)
New brake master and proportioning valve (Lee)
At this point the problem seemed to be about 85% resolved, brakes are good but shifting was still difficult at times.
Yesterday I replaced both shift cables with new Rodney Dickman's and Anne says the car shifts like butter now.
At this rate, I'll just about have replaced everything replaceable on the car by the end of the year ;D
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Update on the 84 ;D
New master & slave clutch cylinder
New clutch
New throw-out bearings
New shift cables
New master brake cylinder
New brake proportioning valve
New motor mounts
New metal clutch pedal
New valve stem seals
All of this thanks to Lee Arnette. Should have it back tomorrow, Lee is currently bolting the engine/tranny/cradle back into the car
So now there really isn't much more we haven't replaced yet ;D
Hope to have it painted befor the end of the year!
Will post results of the test drive tomorrow or Sunday.
Hope you all have fun during the RFTH re-run this weekend
\D
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Why don't the two of you come on the rerun with the 85? I've got a good scenic route planned.
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Charlie,
I am a really, REALLY lousy passenger and I would kill Don if he would drive the way I drive ;D.
I just don't like the GT and I don't feel comfortable driving it through the mountains.
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Turns out the 84 needs an oil pan
\D
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I remember you said you had an 86 engine. There's an 86 at pullapart on Buford Highway. It was put there on the 6th. Probably is a 4 cylinder. There's also an 84 that was brought in in September.
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I might run over there on Tuesday - thnx
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SHE RUNS LIKE A DREAM! Like a new car! I've driven her a bit now and all I can say is: WOW!
Shifts, sounds and runs great!
Lee Arnette did awesome work. Very recommendable if you are like me and don't have the time or the knowledge ;D
\D
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That exhaust sounds great. Almost like a V6. Good tone.
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I agree.
Lee removed the obsolete catalytic converter and welded in a straight pipe, hence the beefy sound ;D
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As per a recommendation from Charlie, I had Lee work on mine while I am stuck here in Alaska. I went there not knowing what was wrong only having "ideas". Lee went above and beyond Fixed the main problem and a few other things that were going to be problems. Very reasonably priced too! I cant wait to get home and drive my "new" baby. Whodeanie re-did my exhaust the day before it broke down and i didnt even get to enjoy that yet. Mine being an 87 needed emmisions, so he put on a Magnaflow high flow cat and a "mild" cherry bomb. sounded good the 7 mile drive home, but i have not taken it on the highway yet.
Thanks for recommending Lee, Charlie!