Rear calipers e brake

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atruscott
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Re: Rear calipers e brake

Post by atruscott » Tue Sep 03, 2019 8:39 am

Have you talked to the vendor? If so - what did they say? If not - why not?
1960 Autobianchi Bianchina Transformabile
1970 238 Camper OHV
1974 124 Wagon TC
1974 124 Special TC
1975 124 Sport Coupe
1976 124 Sport Spider (The Racer)
1981 Spider 2000 (The Resurrected)
1985 Pininfarina Azzurra
2017 124 Spider Abarth Elaborazione
tima01887
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First Name: Timothy

Re: Rear calipers e brake

Post by tima01887 » Sat Sep 07, 2019 9:14 am

Well, Have been away this week Andy. I havent spoken with the vendor because I am not sure if the calipers are not functioning as they should. Before I do I thought maybe I could get an answer here, Without the vendor thinking
i am crazy, Which i may be.
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atruscott
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Re: Rear calipers e brake

Post by atruscott » Sat Sep 07, 2019 2:18 pm

Most of the vendors are equally crazy (remember, they make a living off of these cars!)
1960 Autobianchi Bianchina Transformabile
1970 238 Camper OHV
1974 124 Wagon TC
1974 124 Special TC
1975 124 Sport Coupe
1976 124 Sport Spider (The Racer)
1981 Spider 2000 (The Resurrected)
1985 Pininfarina Azzurra
2017 124 Spider Abarth Elaborazione
tima01887
Posts: 24
Joined: Wed Jan 24, 2018 5:40 pm
Last Name: Aucella
First Name: Timothy

Re: Rear calipers e brake

Post by tima01887 » Sat Sep 07, 2019 11:01 pm

Mystery solved, Maybe
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atruscott
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Re: Rear calipers e brake

Post by atruscott » Sun Sep 08, 2019 8:52 am

Don’t leave us hanging......
1960 Autobianchi Bianchina Transformabile
1970 238 Camper OHV
1974 124 Wagon TC
1974 124 Special TC
1975 124 Sport Coupe
1976 124 Sport Spider (The Racer)
1981 Spider 2000 (The Resurrected)
1985 Pininfarina Azzurra
2017 124 Spider Abarth Elaborazione
tima01887
Posts: 24
Joined: Wed Jan 24, 2018 5:40 pm
Last Name: Aucella
First Name: Timothy

Re: Rear calipers e brake

Post by tima01887 » Mon Sep 09, 2019 7:14 am

I took the old caliper and cleaned it out, the square o-ring was dry, removed it. Screwed the piston back in and obseved the action when the lever is operated. The old caliper works the same as the new one., but there seems to be a longer throw than the new one. I have a new extra caliper so i am working with this one. I tried again to get the hand brake to work on the car, First adjusted the cable. Two clicks on the lever and tighten the cable nut. No change, Then loosened the cable pumped the brakes pulled on the cable tugging on the cable. 2 clicks, tightened the cable still nothing.
Gave up, I got the e brake to work once with this method. So e-mailed another vendor and asked for a gaurantee that if i bought from them the e brake will work. Otherwise I will search for rebuilt or calipers that are rebuildable.
spider2081
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Re: Rear calipers e brake

Post by spider2081 » Mon Sep 09, 2019 8:40 am

Two clicks on the lever and tighten the cable nut
Not sure I am interpreting this correct. I thought the emergency brake cable nut was tightened with the brake handle down (warning light off) so/until when the emergency brake handle was pulled up 3 clicks the brakes kept the car from rolling. Pads have a slight drag on the rotors when the emergency brake handle is down.
tima01887
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Re: Rear calipers e brake

Post by tima01887 » Mon Sep 09, 2019 2:53 pm

I could try that 2081, The service manual says two or three clicks on the ratchet, Then tighten the pull on the cabl. I am at odds here, Next thing i will try if possible is to pull both levers on the caliper up secure them (c-clamp) then tighten the cable. Maybe this will help center the torsion on both calipers. Otherwise I will put out for new calipers, They do not look to hard to renew but i only have one of the old calipers.

There is a retraction, Pulling the lever on the caliper(or handbrake)the piston moves forward, when released it moves back. The old caliper has a bit more motion than the new ones. Not to generalize, But the new one I have.
spider2081
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Re: Rear calipers e brake

Post by spider2081 » Mon Sep 09, 2019 5:28 pm

The service manual says two or three clicks on the ratchet, Then tighten the pull on the cabl
I think The original 124 literature may have been written in Italian and then translated to other languages. So procedures in a manual have to be looked at with an open mind. Reflecting on adjusting drum brakes on an American car one would adjust the adjuster until the wheel could not be rotated then back off a specified number of turns. The shoes always dragged on the drum when done.

If you continue to read the "Adjustment" area of the manual this statement will be found:
"Hand brake is correctly adjusted when three clicks of the hand brake will firmly actuate rear brakes"
Also my manual makes this statement which is what I think you might be referring to " Turn the adjusting nut until the cable is taut." To me this means the pads are tightly set against the rotor. I wonder if using the step you quote is implying , set the hand brake handle up 2-3 clicks and adjust the nut so the wheel can not be rotated ( emergency brake engaged)

I'm thinking the end result regardless of procedure is to have the emergency brake hold the car when the handle is pulled up 2-3 clicks.
tima01887
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Re: Rear calipers e brake

Post by tima01887 » Mon Sep 09, 2019 8:33 pm

Will try that method next 2081, Thank you!
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