rear brake problem
- azruss
- Posts: 3659
- Joined: Sun May 30, 2010 12:24 pm
- Your car is a: 80 Fiat 2000 FI
rear brake problem
Changing out pad and rotors. put the rear axle on jack stands, released the tension on the e-brake. loosened the bleeder, turned the adjust screw piston all the way in. I can only get it about an 1/8" from being flush with the caliper casting. I that level there isnt enough room for the rotor to fit between the pads. Both sides are the same. I took a spare and removed the piston by unscrewing it. I could only screw it down the same as the 2 on the car. It appears that the only way to get it lower is to remove the e-brake wedge. then if you managed to get it back in, your pads would be locked on the rotor. So what am i doing wrong.
- 81SPIDERMATT
- Posts: 1239
- Joined: Mon Oct 11, 2010 5:10 pm
- Your car is a: 1981 spider 2000
- Location: FORT COLLINS, CO
Re: rear brake problem
been a while but are there not clips on the pads that can be removed .... front and rear pads are different thicknesses also i think....
- RRoller123
- Patron 2020
- Posts: 8179
- Joined: Sun Nov 13, 2011 2:04 pm
- Your car is a: 1980 FI SPIDER 2000
- Location: SAGAMORE BEACH, MA USA
Re: rear brake problem
rear pads thinner.
'80 FI Spider 2000
'74 and '79 X1/9 (past)
'75 BMW R75/6
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/STD BED
2002 Edgewater 175CC 80HP 4-Stroke Yamaha
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'74 and '79 X1/9 (past)
'75 BMW R75/6
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/STD BED
2002 Edgewater 175CC 80HP 4-Stroke Yamaha
2003 Jaguar XK8
2003 Jaguar XKR
2021 Jayco 22RB
2019 Bianchi Torino Bicycle
- azruss
- Posts: 3659
- Joined: Sun May 30, 2010 12:24 pm
- Your car is a: 80 Fiat 2000 FI
Re: rear brake problem
these pads are half the thickness of the front pads. There are no backers on this pad. just the friction material with the metal plate with the knob. Also, when i disassemble the piston, i see nothing that would require an orientation.
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- Patron 2020
- Posts: 487
- Joined: Sat Jul 31, 2010 9:36 pm
- Your car is a: 1981 Spider 2000
- Location: Collinsville, IL
Re: rear brake problem
I just went out to the shop and after 20 minutes, I need to do a data base to keep track of parts, I found rear calipers that I rebuilt last year and put on the shelf. The pistons do stick out about an 1/8 of an inch. I put in new pads and put them on a new rotor and they fit with room to spare. Not a lot, but no trouble getting them on.
1987 Lotus Super 7 clone
1981 Fiat Spider 2000 AT
1982 Fiat Spider 2000 5sd
1970 Fiat Coupe
1981 Fiat Spider 2000 AT
1982 Fiat Spider 2000 5sd
1970 Fiat Coupe
- azruss
- Posts: 3659
- Joined: Sun May 30, 2010 12:24 pm
- Your car is a: 80 Fiat 2000 FI
Re: rear brake problem
I ended up opening the bleeder and pushing in hard while screwing in the piston. This bought me about .020" of clearance. I used a 1 x 1/8" flat file and a crescent as a screwdriver. it worked great.
- 81SPIDERMATT
- Posts: 1239
- Joined: Mon Oct 11, 2010 5:10 pm
- Your car is a: 1981 spider 2000
- Location: FORT COLLINS, CO
Re: rear brake problem
yay .... glad you got it... wish i could have been more help .... i know it can be frustrating to stare at something knowing it should work and it does not ... ask for help and get a generic answer ....
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- Posts: 1833
- Joined: Wed Mar 24, 2010 10:45 pm
- Your car is a: 1975 Spider
- Location: clermont fl
Re: rear brake problem
yes you need to orient them, the piston has a slot in it to turn it in, one one side of the slot is a machined in line, that line goes on the top side of the grove that you turn the piston in with, both being horizontal. this allows air to be blead out of the piston
Automotive Service Technology Instructor (34 year Fiat mechanic)
75 spider , 6 Lancia Scorpions, 2018 Abarth Spider, 500X wifes, 500L 3 82 Zagatos. 82 spider 34k original miles, 83 pininfarina, 8 fiat spider parts cars
son has 78 spider
75 spider , 6 Lancia Scorpions, 2018 Abarth Spider, 500X wifes, 500L 3 82 Zagatos. 82 spider 34k original miles, 83 pininfarina, 8 fiat spider parts cars
son has 78 spider