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  • Parking brake shoe hold down spring

    I recently needed to put my spare tyre to use as my rear passenger side tyre had a side puncture and was leaking air despite the repair. Long story short, I managed to swap the tyre but also ended up breaking one of the studs by overtightening one of the wheel nuts. I then tried to replace it myself and managed to get as far as removing the rotor but didn’t know where to from there. When I was trying to remove the rotor, I somehow managed to undo the spring that holds down the parking brake shoe. I got the stud replaced by the local dealership but they want me to come back for replacing the spring and charge me $200 for it. I was looking at doing it myself and found the link I am including in this post which explains the process quite well but I have the following questions:
    1. Can the spring be replaced by just taking the rotor off?
    2. Do the parking shoe springs at the bottom or top need to come off for installing the hold down?
    3. Where does the pin that holds the spring need to be inserted from? How?

    Apologies if this has been covered in detail elsewhere but I could not find it and hence am posting this.

    Link for detailed process : https://www.toyotanation.com/forum/8...tructions.html

  • #2
    https://youtu.be/Ydvf1gAmEZ0
    Watch from 2min mark

    Comment


    • #3
      Also, on the 150 (and 120) there is an adjuster at the bottom of the assembly that needs to be loosened off to make the rotor removal easier.

      Watch from about 50 seconds in on this video - its for a landcruiser, but very similar setup....

      https://www.youtube.com/watch?v=t8xLAsGr5yA

      Comment


      • #4
        Originally posted by nelsonserrao View Post
        I recently needed to put my spare tyre to use as my rear passenger side tyre had a side puncture and was leaking air despite the repair. Long story short, I managed to swap the tyre but also ended up breaking one of the studs by overtightening one of the wheel nuts. I then tried to replace it myself and managed to get as far as removing the rotor but didn’t know where to from there. When I was trying to remove the rotor, I somehow managed to undo the spring that holds down the parking brake shoe. I got the stud replaced by the local dealership but they want me to come back for replacing the spring and charge me $200 for it. I was looking at doing it myself and found the link I am including in this post which explains the process quite well but I have the following questions:
        1. Can the spring be replaced by just taking the rotor off?
        2. Do the parking shoe springs at the bottom or top need to come off for installing the hold down?
        3. Where does the pin that holds the spring need to be inserted from? How?

        Apologies if this has been covered in detail elsewhere but I could not find it and hence am posting this.

        Link for detailed process : https://www.toyotanation.com/forum/8...tructions.html
        I replaced the rear rotors and pads on my 90 series, but unfortunately the whole park brake assembly fell to bits on the passenger side. I spent two days trying to reassemble it and in the end gave up and called in a mobile mechanic. It ended up costing me around $400 as even he struggled to put it back together. It turns out the the dog leg pin was bent and had to be replaced (that's why it fell apart). Unfortunately the video in amts link goes from partially disassembled to completely reassembled and misses out a lot of detail in the middle. In the 90 series the pins come in from the rear, one is straight from memory, the other is dog legged as it fits around part of the backing plate. I managed to get the straight one in OK, but trying to fit the dog leg pin in place resulted in eveyrthing falling apart again numerous times, so I was back to square one. It turned out to be one job I'd wished I'd got my mechanic to do right from the start.

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        • #5
          Thank you for all the great advice and links. Fortunately, the straight pin in mine is what needs fixing. Parts (pin, spring, cup) arriving at the local dealership in a week. So will do all my homework before then. Just out of curiosity, can the brake shoes be as is to put the straight pin and spring in or the springs near the adjuster need to be undone to loosen the shoes? Rainman, what do you mean when you say pins come in from rear? Rear of what?

          Comment


          • #6
            Yeah this is a difficult job, no room to get the cap & spring on. I tried for ages & couldn’t so took it to a brake place who fitted a new kit of springs & caps to both hubs. They only charged for the kit & 1hr labour so I guess they have a special tool or know the trick to do this. Very bad design as hole is too small & no room at all. I’d leave this for the pros.

            Comment


            • #7
              Originally posted by nelsonserrao View Post
              Rainman, what do you mean when you say pins come in from rear? Rear of what?
              The backing plate on the brake assembly. You have to insert the pins from the rear of the plate and the spring and locking washer are installed from the front. Thinking about it again, I think the dog leg pin fits around the actual brake pad, not the backing plate, Trying to install this pin from the rear, manipulate it round the brake pad, fit the spring over it, then fit and turn the locking washer while trying to keep the whole assembly in position is a nightmare.

              Comment


              • #8
                The hand brake locked on while the car was in the garage. Anyway after a numner of attempts foward and back to no avail put it in reverse and hit the pedal.
                There was a bang and launched out of the garage.
                Found the left side was the culprit and tried to get the disk /drum off. Tried levering, shaking for some two hours with no result. Thought that I would have to circumsize the drum with an angle grinder. New plan was to drill a couple of holes in the front of the drum, push a screwdriver in and lever the offending shoe away . This worked a treat.
                The brake shoe adjuster wheel had fallen out and the pin with the elbow had been bent which I removed and bent it back to its original form.
                then the nightmare began trying to get it all together.
                Virtually impossible process. No room to fit the parts between the wheel hub and the brake shoes.
                Hours and hours with the help of a mate we gave up.
                so I could use my car we pulled the whole lot out.
                replaced the disk and caliper (with new pads which needed replacing) and there it is. Trying to work up the strength to have another go.
                if Toyota could have given a 22mm hole in the wheel hub the job of replacing the brake shoes retaining springs would be a snap. I am currently considering that as an option. In my view, it won't affect the strength of the hub as there is a 13mm hole there already so you can adjust the brske shoes.
                Yeh, what a feeling! What a piece of crap!
                ​​​
                Well had another go with some new strategies.
                First, to keep more control of the dog leg pin, i welded a small bolt onto the head of it. I could then move it to a better position and hold it there.
                Second, I compressed the spring in the vice and held it compressed by using some fine copper wire. Once I had the spring and the caps in place I was able to cut the wire to release it.
                A pair of tweezers was used to fit the outside cap.
                I found a piece of 10mm dowel and hammered two small nails into the end of it. I cut the heads off the nails which left me with a kind of two pronged fork. I was then able to push it through the hole in the hub and twist the retaining cap. Hallalooyar job done! Only spent around 12 to 14 hours from start to finish.

                Bought a new disk /drum $120 dollars. I gave my new dowel tool to the local mechanic with the hints. I hope some of this will be of some help to those who have to deal with this bloody awful job in the future
                G.Johnno
                Lurker
                Last edited by G.Johnno; 11-04-2019, 12:05 AM. Reason: Found the strength to have another go.

                Comment


                • #9
                  Some good posts here about the park brake replacement. I found a small socket, about 3/16 on an extension bar goes through the inspection hole and fits nicely over the pin head. You can then turn the cup with a pair of pliers.
                  I spent hours and hours swearing and cursing at these pins but was a relieving achievement once I worked it out.
                  Anyway, I have another issue with my park brake left rear. After changing the shoes and all components, everything was fine for about a week then all of a sudden a loud knocking noise coming from back left whilst driving along. It stopped rather quickly and disappeared. Turns out it is intermittent but very loud. I've pulled the wheel off and spun the rotor, all sounds good. Took the rotor off and all looks good, no loose or out of place parts. I was starting to question my thoughts on it being the park brake so I removed the park brake from the LHS and took it for a drive on the dirt track. The noise has now disappeared all together...Would love any suggestions???

                  Comment


                  • #10
                    If that dog leg or elbow pin has stretched or straightened such, it may be scraping on the back of the axle hub. I found mine did and had to bend it back to its original form. I guess you have solved your problem by now, but posted this to advise other members.

                    Comment


                    • #11
                      This the worst design ever.they didn’t make the hole wide enough. I tried for ages & couldn’t so took it to a brake place who put a new kit in & charged only 1 hr. Best money ever spent as it stressed the he’ll out of me!
                      2010 Prado GXL D4D Auto , BFG A/T , DVD Console , Tekonsha P3 , Projecta Dual battery system , Piranha dual battery tray..
                      Jayco outback expanda

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                      • #12
                        Originally posted by G.Johnno View Post
                        If that dog leg or elbow pin has stretched or straightened such, it may be scraping on the back of the axle hub. I found mine did and had to bend it back to its original form. I guess you have solved your problem by now, but posted this to advise other members.
                        Still haven't sorted this problem yet Johnno. Put it all back together again and the cable was stuck. Managed to free that up but after a couple of days driving around the intermittent knocking noise has returned. I don't think the pins are bent but I may have to replace the lot again. I'm at a loss....

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                        • #13
                          Banned
                          Piggy
                          Water pistol pilot.
                          Last edited by Piggy; 10-06-2019, 08:54 PM.

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                          • #14
                            Use an old flat head screwdriver that your willing to sacrifice and a grinder.
                            You will need one wide enough to suit the star part of the retainer ( bit the pushes on spring).

                            Put screwdriver in vice, using the pin as a guide carefully cut out the centre section so your left with a U shape.
                            The flat part of the pin needs to be able to twist in the U section you cut out.
                            Now you have tool to sit in the star retainer.
                            Now compress spring while holding pin against backing plate and twist retainer 1/4 turn, job done.

                            Comment


                            • #15
                              Click image for larger version

Name:	E6C47B86-37CA-4A18-B43B-994ABE7A4BBE.png
Views:	650
Size:	349.3 KB
ID:	765745This might help if anyone is still interested. I just recently replaced mine due to them being completely covered in mud and prematurely wearing the shoes.

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