Thanks for the advice on rear brake piston

Thanks for the advice on rear brake piston

Joined: September 25th, 2004, 5:43 am

April 17th, 2008, 2:11 am #1

I finally got the cars out of the garage about two weeks ago. &8 started with a little priming and ran respectably. Unfortunately I had left the parking brake set on the 86 all winter. I thought I let it off when I put it up on the dollies, but no... I didn't.

Anyway. On the maiden 86's voyage I heard a nice grinding sound from the right rear wheel at each stop. Naturally, I had gotten about 10 miles from home before it got loud enough to hear. I nursed it back to the house and looked through the wheel... nice fresh ground rotor shavings were in abundance. D@MN.

Apparently I had never messed with the rear brakes on this particular X. This is a downside of having multiple Xs and getting old. I sure thought I had done the brakes on this car already. Must have been the 78 or 79. Turns out not only did I leave the break on, but the pads were down to nothing too.

I searched for everyones clues on dealing with the slotted twisty rear pistons and found a few helpful posts. So thanks guys.

The one that was messed up was a b1tch to get moving. I tried everything I had in my workshop and tool box. I ended up running up to Cummins Tools and looking at their odds and ends. I found a couple little flat metal pieces in the "engineer your own solution" area, (Yes it's called that ) for 99 cents each.



These are almost exactly the right size and I just looked through the bin till I found two with fairly square edges to use in the slot. They are ~1/4" thick, 2" long and 1 1/4" wide. I clamped them in a vice grips and went at it.

The undamaged side was much easier. Test drive proved that I had good brakes again.

Xweb rules!!

jd


Code: Select all

        1978                1986  \
[/b]
2005 FFO Photo Gallery
Quote

Joined: August 6th, 2005, 6:03 pm

April 17th, 2008, 2:19 am #2

But you can hit your local sears and get a "drag link socket". 1/2" drive, and the business end looks like a huge screwdriver.

Congratz on getting those puppies out!
Quote

Joined: November 21st, 2007, 2:40 am

April 17th, 2008, 2:25 am #3

I finally got the cars out of the garage about two weeks ago. &8 started with a little priming and ran respectably. Unfortunately I had left the parking brake set on the 86 all winter. I thought I let it off when I put it up on the dollies, but no... I didn't.

Anyway. On the maiden 86's voyage I heard a nice grinding sound from the right rear wheel at each stop. Naturally, I had gotten about 10 miles from home before it got loud enough to hear. I nursed it back to the house and looked through the wheel... nice fresh ground rotor shavings were in abundance. D@MN.

Apparently I had never messed with the rear brakes on this particular X. This is a downside of having multiple Xs and getting old. I sure thought I had done the brakes on this car already. Must have been the 78 or 79. Turns out not only did I leave the break on, but the pads were down to nothing too.

I searched for everyones clues on dealing with the slotted twisty rear pistons and found a few helpful posts. So thanks guys.

The one that was messed up was a b1tch to get moving. I tried everything I had in my workshop and tool box. I ended up running up to Cummins Tools and looking at their odds and ends. I found a couple little flat metal pieces in the "engineer your own solution" area, (Yes it's called that ) for 99 cents each.



These are almost exactly the right size and I just looked through the bin till I found two with fairly square edges to use in the slot. They are ~1/4" thick, 2" long and 1 1/4" wide. I clamped them in a vice grips and went at it.

The undamaged side was much easier. Test drive proved that I had good brakes again.

Xweb rules!!

jd


Code: Select all

        1978                1986  \
[/b]
2005 FFO Photo Gallery
I have a tendancy to improvise on the spot. I once used a bolt from the A-arm to align my clutch disc

In this case, I use a combi wrench to turn 'em.

RMMJ
1986 Bertone X1/9 a.k.a BlueTooth
www.socalx.com
Quote

Joined: September 25th, 2004, 5:43 am

April 17th, 2008, 2:37 am #4

But you can hit your local sears and get a "drag link socket". 1/2" drive, and the business end looks like a huge screwdriver.

Congratz on getting those puppies out!
I will look for one of those. I thought Cummins would have something along those lines, but I didn't know what to call it and I didn't see it. So it was off to the "bin". That's where I found the hub tools I adapted for the rear 79-88 bearing rings too.





Cummins is a great place to browse for unusual things. I think they are actually called "Worldwide Tools" or something like that now. Apparently Cummins Diesel paid them off to change their name.

Thanks for the tip on the Sears tool.

jd


Code: Select all

        1978                1986  \
[/b]
2005 FFO Photo Gallery
Quote

Joined: September 25th, 2004, 5:43 am

April 17th, 2008, 2:39 am #5

I have a tendancy to improvise on the spot. I once used a bolt from the A-arm to align my clutch disc

In this case, I use a combi wrench to turn 'em.

RMMJ
1986 Bertone X1/9 a.k.a BlueTooth
www.socalx.com
and I am thinking... "Why would I have a comb!?!"

Then I read a little closer.

jd


Code: Select all

        1978                1986  \
[/b]
2005 FFO Photo Gallery
Last edited by JimDecker on April 17th, 2008, 2:39 am, edited 1 time in total.
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Joined: November 21st, 2007, 2:40 am

April 17th, 2008, 2:54 am #6

Just like here:





RMMJ
1986 Bertone X1/9 a.k.a BlueTooth
www.socalx.com
Quote

Joined: September 25th, 2004, 5:43 am

April 17th, 2008, 3:09 am #7

Well... the original version anyway. Not sure she would like the young ladies you pasted in. Of course, I like them just fine.

jd


Code: Select all

        1978                1986  \
[/b]
2005 FFO Photo Gallery
Quote

Joined: December 21st, 2004, 3:04 am

April 17th, 2008, 5:51 am #8

Just like here:





RMMJ
1986 Bertone X1/9 a.k.a BlueTooth
www.socalx.com
My best,



Tony
Black Tooth and me... since 1983!
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Quote

Joined: September 25th, 2004, 5:43 am

April 18th, 2008, 12:49 am #9

I finally got the cars out of the garage about two weeks ago. &8 started with a little priming and ran respectably. Unfortunately I had left the parking brake set on the 86 all winter. I thought I let it off when I put it up on the dollies, but no... I didn't.

Anyway. On the maiden 86's voyage I heard a nice grinding sound from the right rear wheel at each stop. Naturally, I had gotten about 10 miles from home before it got loud enough to hear. I nursed it back to the house and looked through the wheel... nice fresh ground rotor shavings were in abundance. D@MN.

Apparently I had never messed with the rear brakes on this particular X. This is a downside of having multiple Xs and getting old. I sure thought I had done the brakes on this car already. Must have been the 78 or 79. Turns out not only did I leave the break on, but the pads were down to nothing too.

I searched for everyones clues on dealing with the slotted twisty rear pistons and found a few helpful posts. So thanks guys.

The one that was messed up was a b1tch to get moving. I tried everything I had in my workshop and tool box. I ended up running up to Cummins Tools and looking at their odds and ends. I found a couple little flat metal pieces in the "engineer your own solution" area, (Yes it's called that ) for 99 cents each.



These are almost exactly the right size and I just looked through the bin till I found two with fairly square edges to use in the slot. They are ~1/4" thick, 2" long and 1 1/4" wide. I clamped them in a vice grips and went at it.

The undamaged side was much easier. Test drive proved that I had good brakes again.

Xweb rules!!

jd


Code: Select all

        1978                1986  \
[/b]
2005 FFO Photo Gallery
I took another brief drive on the highway in the X tonight when I got home. I didn't feel any dragging, or notice any pulling, etc, but I could smell hot brakes when I stopped at intersections on the way home.

When I got in the garage I turned off the engine and put the car in neutral and let off the brakes. I started rolling out of the garage as I hoped. Then I put on the brakes and stopped. Next I applied the parking brake(which is a very short pull with the news pads) and released the brake pedal. The car stayed put. Then I let off the parking brake and I continued my rearward journey out of the garage. This all seems like normal brake behavior.

So my question is. I have probably put 10-15 miles on the car sine completing the job. Is it unusual to get hot brakes in the first few miles of driving with new pads? Just wondering if I should pull it all apart again since everything seems to roll freely right now.

Thanks,

jd


Code: Select all

        1978                1986  \
[/b]
2005 FFO Photo Gallery
Quote

Joined: September 25th, 2004, 5:43 am

April 18th, 2008, 2:01 am #10

Thanks guys!!

jd


Code: Select all

        1978                1986  \
[/b]
2005 FFO Photo Gallery
Quote