Rear calipers e brake

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tima01887
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Re: Rear calipers e brake

Post by tima01887 » Wed Sep 11, 2019 5:19 pm

Hoping I can get to them Saturday
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bartigue
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Re: Rear calipers e brake

Post by bartigue » Thu Sep 12, 2019 6:02 am

I’ve always simply loosened the cable, then pulled the lever up two clicks, and tightened the cable. Then I find the car is firmly held by two or three clicks of the lever.
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Brad Artigue
1969, 1969, 1970, 1979, 1980, 1981, 1982, and 1982 124 Spiders
1969, 1970 850 Spiders
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friedman
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Re: Rear calipers e brake

Post by friedman » Thu Sep 12, 2019 8:20 am

Brad, do you then check to make sure the ebrake is not dragging when disengaged?
Carl in Virginia
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tima01887
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Re: Rear calipers e brake

Post by tima01887 » Thu Sep 12, 2019 4:26 pm

Right? It should be that easy, Had them working as they should, In first they held, But only once. That is why
i am thinking it is the calipers. They should hold and release.
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bartigue
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Re: Rear calipers e brake

Post by bartigue » Thu Sep 12, 2019 8:50 pm

friedman wrote:
Thu Sep 12, 2019 8:20 am
Brad, do you then check to make sure the ebrake is not dragging when disengaged?
Absolutely. I also find the brake handle has a certain feel to it when the brakes are released or engaged, regardless of the clicks.
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Brad Artigue
1969, 1969, 1970, 1979, 1980, 1981, 1982, and 1982 124 Spiders
1969, 1970 850 Spiders
77 X1/9
http://fiat.artigue.com
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bartigue
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Re: Rear calipers e brake

Post by bartigue » Thu Sep 12, 2019 8:51 pm

tima01887 wrote:
Thu Sep 12, 2019 4:26 pm
Right? It should be that easy, Had them working as they should, In first they held, But only once. That is why
i am thinking it is the calipers. They should hold and release.
Weird - not retracting. Spring assembled wrong perhaps. I've never really had a rear caliper fail, I've just cursed a lot rebuilding them.
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Brad Artigue
1969, 1969, 1970, 1979, 1980, 1981, 1982, and 1982 124 Spiders
1969, 1970 850 Spiders
77 X1/9
http://fiat.artigue.com
tima01887
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Re: Rear calipers e brake

Post by tima01887 » Sat Sep 14, 2019 8:27 am

I pulled the new caliper off the drivers side. Acuated the e brake lever by hand, no action on the piston, Has to be assembled incorrectly. Not right
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bartigue
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Re: Rear calipers e brake

Post by bartigue » Mon Sep 16, 2019 4:04 pm

tima01887 wrote:
Sat Sep 14, 2019 8:27 am
I pulled the new caliper off the drivers side. Acuated the e brake lever by hand, no action on the piston, Has to be assembled incorrectly. Not right
Maybe someone broke the piece inside the piston where the rod screws in.
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Brad Artigue
1969, 1969, 1970, 1979, 1980, 1981, 1982, and 1982 124 Spiders
1969, 1970 850 Spiders
77 X1/9
http://fiat.artigue.com
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18Fiatsandcounting
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Re: Rear calipers e brake

Post by 18Fiatsandcounting » Mon Sep 16, 2019 6:18 pm

Apparently what tima01887 has got is going around, as I had the exact same problem yesterday with a rear caliper that I had just rebuilt a few weeks ago. Symptoms were the same: hydraulic brake worked fine, but no emergency brake after one or two uses. The cause was that the circlip that holds the retainer plate inside the piston had popped out of its groove, for unknown reasons. Corrected this last night and I'm back in business, with the rear wheels grabbing solidly after 2-3 clicks on the handbrake lever.

-Bryan
tima01887
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Re: Rear calipers e brake

Post by tima01887 » Mon Sep 16, 2019 7:41 pm

How would that happen and who would do such a thing?
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