I'm stuck installing rebuilt 1988 rear caliper (Page 1/1)
John W. Tilford MAY 21, 01:37 PM






I've been waiting for a couple of weeks to receive a rebuilt 1988 left rear caliper. It arrived yesterday and looks great. I'm stuck installing it. One picture shows the assembled (with my old pads, their new pins and pad retaining springs) rebuilt caliper.

Next two pictures are different views of the caliper on the car EXCEPT for connecting the parking brake static and rotating portions.

First question: It looks like the static bracket would be attached by removing the 19mm hex head screw next to the hole in the bracket. Yes, one of the two screws that hold the caliper body together. Then re-insert the screw through the hole in the static bracket and tighten. Is that correct?

Second question: The bright silver hex head nut aligned with the center of the piston is too big to fit the hexagonal hole in the rotating portion of the parking brake, the lever portion, so to speak. Even if it did fit, what would hold the lever with the hexagonal hole on the nut? Just looking at this . . well, I'm lost and asking for your help.

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John W. Tilford

Daryl M MAY 21, 02:12 PM

quote
Originally posted by John W. Tilford:







I've been waiting for a couple of weeks to receive a rebuilt 1988 left rear caliper. It arrived yesterday and looks great. I'm stuck installing it. One picture shows the assembled (with my old pads, their new pins and pad retaining springs) rebuilt caliper.

Next two pictures are different views of the caliper on the car EXCEPT for connecting the parking brake static and rotating portions.

First question: It looks like the static bracket would be attached by removing the 19mm hex head screw next to the hole in the bracket. Yes, one of the two screws that hold the caliper body together. Then re-insert the screw through the hole in the static bracket and tighten. Is that correct?

Second question: The bright silver hex head nut aligned with the center of the piston is too big to fit the hexagonal hole in the rotating portion of the parking brake, the lever portion, so to speak. Even if it did fit, what would hold the lever with the hexagonal hole on the nut? Just looking at this . . well, I'm lost and asking for your help.



I hope I understand your questions.

First question, yes. The stationary bracket mounts to the bolt you described.

Second question, remove the nut from the shaft and you have to remove the plastic packing piece. It is only there for shipping. The shaft should be the proper size and shape to fit the linkage arm. The nut holds it on the shaft.
cvxjet MAY 21, 06:22 PM
The lever must fit on the actuator shaft to ROTATE that shaft, hence the hex pattern- the shaft has a Hex seat for it, under that Nut and spacer.

The cable bracket does bolt on with one of the Bridge bolts.

[This message has been edited by cvxjet (edited 05-21-2021).]

John W. Tilford MAY 21, 08:10 PM
Good news! And I was afraid to take off the sliver colored nut, thinking I might have to return this caliper.

Is there some standard orientation of the hex hole/lever arm with the hex shaft? Maybe "in the caliper unstressed, 'rest' position the parking brake lever arm is straight up"? That would enable the maximum leverage when applying the parking brake.

That's another $5.00 I owe each of you. But you gotta come to one mile NE of New Unionville, Indiana to collect. Driving your Fieros.

Thank you!

John T

[This message has been edited by John W. Tilford (edited 05-21-2021).]

reinhart MAY 22, 05:30 AM
There really isn't much of a choice as to where to mount the lever since it only has about 60 degrees rotation and is mounted on a hex stud which would also equal 60 degrees.I just mount it where I can and then rotate it back to the stops.

[This message has been edited by reinhart (edited 05-22-2021).]

John W. Tilford MAY 22, 11:42 AM
Thank you, reinhart. I'm out to the Fiero right now.

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John W. Tilford

reinhart MAY 28, 08:14 PM
How did it turn out?
John W. Tilford MAY 28, 08:26 PM
Turned out fine. Two minor glitches: air in brake line and had the angle of the brake line "input" to the caliper wrong so the line rubbed the wheel. Both fixed quickly by a shop less than a mile from my house. The line rubbing was not evident until the wheel was back on the car and the car was up on a lift. Glad we looked before woven-steel covered line wore through. Mechanic also finally found the source, or at least a tangible symptom, of a mystery clicking/banging noise - but that's another story on another post!