Parking/Emergency Brake Adjustment (7 Viewers)

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I am not sure why it is not adjusting


I don't think you are going to be able to shorten the cable with normal garage type tools, you would need new cable ends and a good swager to shorten it,
 
I am not sure why it is not adjusting


I don't think you are going to be able to shorten the cable with normal garage type tools, you would need new cable ends and a good swager to shorten it,
Did I miss anything? I looked how the cable is put together and you are right it will have to be crimped at the ends. I had a FJ62 with the same trouble but I just lived with it I would like it to be perfect with this rig.
 
Did I miss anything? I looked how the cable is put together and you are right it will have to be crimped at the ends. I had a FJ62 with the same trouble but I just lived with it I would like it to be perfect with this rig.


Without the truck in front of me it is hard to say,


In post 4 I said to leave a little more in the star adjustment, considering that "a little more" is wide open to interpretation, and considering you are out of cable adjustment maybe this should be revisited, maybe go back through everything and see if it clears up on its own, here is a more complete write up.


1. Transmission in park, lock the center diff (CDL switch or T-case in low),
2. Block front tires
3. Jack the rear axle put it on stands
4. Remove the wheels, calipers and rotors, inspect everything
5. Reinstall the rotors and at least 2 lug nuts on the rotor to make sure it is seated and running true
6. Enjoy a cold frosty beverage.
7. Remove the cable ends off the bell cranks by removing the "R" clips and then clevis pins,
8. take the bell cranks to the minimum by loosening the jam nut and then back the rubber pads all the way out and bring the bell cranks all the way down to the backing plate so they will not interfere with the next step,
9. Adjust the star until the shoes just start to touch the rotor but produce no noticeable drag, check for contact by rotating the rotor and listening, when you first get contact actuate the bell crank by hand, this should square up the pads and allow them to clear again so you can continue adjusting tighter.
10. Repeat step 9 until there is no change in contact after actuating the bell crank,

What we are looking for here is the shoes to consistently just barely touch the rotor with very little travel to make full contact, do not worry about major slack in bell cranks for now, fixed in next step,

11. Remove the rotor, look at the bar just above center with a flattened coil spring at one end, actuate the bell crank by hand slowly until it just about to lift the pad, notice a small gap from that bar to the shoe disappears as you actuate the bell crank, adjust the rubber stops on the bell cranks until that gap is almost but not completely gone (as in a few thousands) make sure the pads are still seated against the post at the top and the adjuster (with star) at the bottom, lock the jam nuts on the bell crank stops,

What we are looking for motion of the bell crank to quickly turn into motion of the shoes wit no slack,

12. Install and adjust the cable at the handle so that it is right at the point of about to lift the rubber stops but is not,

13. with the rotors in place pull the handle tight a few times to settle it out and check all your gaps again,

A. Shoes very close but not dragging the rotors, slight touching ok (adjusted at star)
B. Spring end of the bar very close but not touching the shoe, (adjusted at bell crank stops)
C. Cable taught but not lifting either of the ball crank stops off the backing plate (adjusted at handle)


If you still do not have a good parking brake, maybe your shoes are worn too low or the cable is stretched,

Examine both and replace one or the other,


Wile you are there a lot of northern salt owners report locked up bell cranks, might as well grease them (see other threads) to prevent future corrosion. you can also put a very small ammount on the 6 points where the shoes ride on the backing plate and the adjuster,
 
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Raven,

Thanks for the detailed adjusting instructions. Unfortunately I haven't had time to try anything yet. First thing the PO adjusted the cable at the handle and it looks like its maxed out with the nut as far to the bottom as possible with all of the threads showing on top. I did not touch it, where should this adjustment be before I start adjusting the bell cranks and shoes? My bell cranks were on there way to be totally fused together but I got everything freed and generously packed the crank assembly and the boot with white grease. The shoes still have a lot of meat on them.

Thanks
George
 
where should this adjustment be before I start adjusting the bell cranks and shoes?


does not matter, the cable is removed from the bell cranks during other adjustments, you then adjust it last when you hook the cable back up.
 
Raven,



Thanks for the complete write up. I'm going to try your adjustment methods this weekend if its not raining. I passed the strict NJ motor vehicle inspection today and they didn't squawk about the e-brake!



Thanx
George
 
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basically repeating but..
Doug,
don't mess with anything inside the truck. adjust from the rear brakes-
-take off the wheels,
- turn the rotor/bug until the hole with the rubber plug in it is at 6 o'clock. there is a toothed cog which tensions the brakes in there
- you take a flathead screwdriver and flip the teeth up (turning the starwheel) to tighten
- tighten it all the way tight and then back it off a few clicks (by turning the starwheel down)
- you can pull the e brake handle to see how tight it is.

THREAD RESURRECTION:

In my situation, I just needed to adjust my parking brakes. I was not interested in examining them as it has been stated, that the brake is so rarely used, and is primarily used for holding rather than actual braking.

The instructions quoted above are very close to what I did. For the sake of clarity, I thought I would "edit" them slightly.

Previously, my parking brake wouldn't hold at all, now it is very tight. It will hold the vehicle back while under load in drive (1,800 RPMS), and I am unable to pull it up all the way.

Thanks to RT, FirstToy, and others for laying this information out clearly. In my FSM, it wasn't this clear.

:cheers:
Nick
 
This is why I spent $50 at a shop before CM08. This job is so unbelievably not worth your time and effort to get right.
 
This is why I spent $50 at a shop before CM08. This job is so unbelievably not worth your time and effort to get right.

It was definitely worth my time. I did it with my three year old. I showed him how to adjust everything perfectly, so that he can do it next time!:hillbilly::flipoff2:
 
Just did my parking brake based on Raven's write up in #23 and it worked perfectly, definately spot on...:cheers:

Also, had my 2 & 4 year olds as tool rats which made it much worth the time...

Dave
 
I fixed the problem with my e-brake and now at last it holds the truck with 7-9 clicks like the FSM says. I followed RavinTai's instructions with the pads just starting to rub adjusted it over and over till it was perfect. However when I took the slack out of the cable at the hand lever the adjusting nut was bottomed out and it would barely hold even if it was pulled to a vertical position. My assumption is that the cable is stretched so I used a 1/4 nut that slipped over the the threads on the end of the cable then tightened the adjustment nuts all the way to the bottom, now its perfect. Is it possible with prolonged use the cable can stretch? My wifes RAV-4 has a manual trany so its used every day the car is 11 years old and the brake still holds fine, so I can't see how it would be possible to stretch it.
 
Is the handbrake adjustment process the same for the rear disk brake setup as opposed to the rear drum brake setup? My 3/92 80 series has rear disk brakes, but my now ex-partner's 91 90 series has rear drum brakes.

Craig.
 
Fast forward 3 yrs from my previous post in this thread and bang! It's 2014 :cool:

I'm rebuilding the handbrakes at present with all new genuine shoes and new sundries. With all the new parts fitted, the bellcrank having been removed, fitted with a new pin and greased, etc. the 'assembly' is wanting to slide forward a little at the bottom before I'm doing any bellcrank play correction. Is that supposed to happen? I think it's because the rear shoe has that small spring low down hooked to a bracket where the bellcrank comes inside the backing plate.

I've had effectively no functioning handbrake for the last 3 yrs, and it's time to do something about it. I never park with the front of the vehicle facing downhill as the hb won't hold and I don't trust just the gearbox holding it.

Also, I can't work out which of the two shoe return springs (the ones that hook over the fixed pivot at the top) go where. One spring is thicker than the other and at the moment I've got the thicker one at the back (same shoe as the dogbone spring is acting on). Is the right, or do the two return springs fit the other way around?

I've re-adjusted one side and I have had to wind in the adjuster all the way, and I still get a small bit of interference between shoes and disk. Once I do the bed-in process (as per the Toyota FSM) that might go away. Prior to understanding what was going on the with bellcrank play, I had the adjuster wound out about 1.5 mm from it's minimum and I was getting the same sort of minimal contact.

FYI I have tried to use longer dogbones but because my 80 is pre-8/92 is has smaller rear disks and handbrake shoes, and the longer dogbones hold the shoes off the top pivot too much so the brake disk can't be fitted.

Craig.
 
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I’m wasting a lot of time on this with my shop guy. I got all new parking brake bits yet my lever action is all the way 13-14 clicks to the top and it seems to barely hold. My star adjustment is maybe 3-4 notches from no rotor movement. If I go FSM 8, while the hold and lever action is nice, after driving at hwy speed warming it up, I get a horrible shaking where I have to slow down and pull over until the rotor cools.

The only solution is back to crap parking brake hold, if incline a clunk noise on release, and loose handle action to not have my 80 vibrate at speed.
 
I’m wasting a lot of time on this with my shop guy. I got all new parking brake bits yet my lever action is all the way 13-14 clicks to the top and it seems to barely hold. My star adjustment is maybe 3-4 notches from no rotor movement. If I go FSM 8, while the hold and lever action is nice, after driving at hwy speed warming it up, I get a horrible shaking where I have to slow down and pull over until the rotor cools.

The only solution is back to crap parking brake hold, if incline a clunk noise on release, and loose handle action to not have my 80 vibrate at speed.
Sounds to me like you need to do the interior adjustment as well. The cable may have stretched.

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OK, I THINK that there's a failure on adjustment order.

You have new cables, new parking brake shoes.

You need to:
1) Back off the cable setting inside the cab as far as it can go.
2) Go back to the wheels and adjust the spinner there to adjust the shoes out. Need to follow the FSM here to get the bellcrank adjusted properly.
3) Readjust the cable on the interior to fine-tune it.


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Thread resurrection - how much drag should the parking brake at rest/before engaging the brake lever? If I tighten the star adjuster tight to grab the brake and back off 8 clicks per FSM, I still hear a little drag when turning the wheels by hand - it isn't continous but drags a little in part of the rotation. Should I back the star adjuster to the point of no drag at all?
 
Thread resurrection - how much drag should the parking brake at rest/before engaging the brake lever? If I tighten the star adjuster tight to grab the brake and back off 8 clicks per FSM, I still hear a little drag when turning the wheels by hand - it isn't continous but drags a little in part of the rotation. Should I back the star adjuster to the point of no drag at all?
I think a tiny bit of contact that you're describing is what you want.
 

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