Omega Owners Forum

Chat Area => General Car Chat => Topic started by: Gaffers on 12 December 2011, 13:43:39

Title: Advice needed - Drum brakes
Post by: Gaffers on 12 December 2011, 13:43:39
I have decided I hate drum brakes, but that doesn't help that my neighbour's car has one that doesn't work properly.

It has a self adjuster which operates correctly when the foot brake is pressed.  It should then hold that setting and keep moving tighter as the shoe wears out.  However when you apply the handbrake it forces the setting to zero resulting in that side not being effecient enough for the MOT.  From what I can tell the arm which the handbrake cable pulls on exerts pressure on the adjustment arm on the other shoe, a sort of cross member held in with return springs.

I dont have much experience of these things but does anyone here know what I can do other than file down the crossmember to reduce the pressure on the adjustment arm?
Title: Re: Advice needed - Drum brakes
Post by: zirk on 12 December 2011, 13:53:51
Had one of them years ago on an Cav SRi, from memory it was the auto balance bit between the 2 rear brakes kept pulling it back.
Title: Re: Advice needed - Drum brakes
Post by: Marks DTM Calib on 12 December 2011, 14:29:08
If its a Vx setup (similar used by others) then its essential that the components are fitted correctly or they can do as you describe.

Also, its essential that there is some slack in the handbrake cable for any auto adjustment setup to function correctly.
Title: Re: Advice needed - Drum brakes
Post by: Seth on 12 December 2011, 14:36:43
Is the handbrake lever nice and free at the shoe?
Title: Re: Advice needed - Drum brakes
Post by: Gaffers on 12 December 2011, 14:58:01
It's a rather french car  >:( , Pug 106, so I am unsure as to whether it is similar to a Vx setup.  The arm moves nice and free and I am sure there is no scope in this design for slack in the cable due to the method it uses to adjust.  I'll try and post a video later.
Title: Re: Advice needed - Drum brakes
Post by: Gaffers on 12 December 2011, 15:22:16
Try this URL for a picture (http://uk.images.search.yahoo.com/images/view;_ylt=A0PDodqYFuZOiHQA.QlNBQx.;_ylu=X3oDMTBlMTQ4cGxyBHNlYwNzcgRzbGsDaW1n?back=http%3A%2F%2Fuk.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dpeugeot%2B106%2Bbrake%2Bdrum%26ei%3Dutf-8%26fr%3Dsfp%26b%3D1%26tab%3Dorganic&w=799&h=599&imgurl=i29.photobucket.com%2Falbums%2Fc300%2FAvP_Mich%2FMikol242.jpg&rurl=http%3A%2F%2Fwww.106owners.co.uk%2Fforums%2Fshowthread.php%3F139286-106-1.1-3-door-hand-brake-cable-diagram&size=103+KB&name=Thread%3A+106+1.1+3+door+hand+brake+cable+diagram&p=peugeot+106+brake+drum&oid=ecb985bdbe384124cb2f06108f5872d6&fr2=&fr=sfp&tt=Thread%3A+106+1.1+3+door+hand+brake+cable+diagram&b=0&ni=21&no=6&tab=organic&ts=&sigr=12v19ussk&sigb=13814f45o&sigi=11lv8mfit&.crumb=o3mzVZRm7Wf)

Not sure if it will work but this is what the drum looks like following a yahoo images search, but due to the restrictive IT system I have at work I cannot follow the link myself.
Title: Re: Advice needed - Drum brakes
Post by: henryd on 12 December 2011, 15:39:40
Has it got the sliding ratchet type adjuster or the nut on a thread type ?
Title: Re: Advice needed - Drum brakes
Post by: Marks DTM Calib on 12 December 2011, 15:41:32
Looks similar to the 1980's Ford setup with two toothed faces (can just be seen on the right side behind the right hand shoe).

Are both toothed faces ok, neither of them smooth?

There should be some free play in the cables of those to.
Title: Re: Advice needed - Drum brakes
Post by: Gaffers on 12 December 2011, 15:46:55
Mark, yes toothed and neither of them smooth - one of them is new though.

Not sure where i would get play in that cable from as there is no adjustment anywhere else I can see.

As a side note I posted this on the 106 forum owners site 2 days ago and so far not one reply.  Thanks for your input fellas  :y
Title: Re: Advice needed - Drum brakes
Post by: henryd on 12 December 2011, 15:47:42
Looks similar to the 1980's Ford setup with two toothed faces (can just be seen on the right side behind the right hand shoe).

Are both toothed faces ok, neither of them smooth?

There should be some free play in the cables of those to.


So it is,I missed looking at the piccy,they will probably need replacing as once they've slipped a couple of times they are fubar
Title: Re: Advice needed - Drum brakes
Post by: Gaffers on 12 December 2011, 15:49:03
Also the cables have springs on the end keeping it pulled back, in essence the 'play'
Title: Re: Advice needed - Drum brakes
Post by: Marks DTM Calib on 12 December 2011, 16:35:53
Adjustment is at the handbrake lever end.....and as stated, they do need some slack.
Title: Re: Advice needed - Drum brakes
Post by: Gaffers on 12 December 2011, 18:18:43
Been out and tried it again this time adjusting the handbrake cable by dropping the exhaust and finding the adjuster.

It is still the same, it just takes 4 clicks to engage handbrake rather than 6.  One side is nice and tight the other seems to 'reset' the tension inside the drum on the teeth.

I'm off to peugeot to get a new set of drum internals tomorrow.  What a trip down memory lane that will be *shudder*
Title: Re: Advice needed - Drum brakes
Post by: Marks DTM Calib on 12 December 2011, 19:50:55
Eh, so you slackened the handbrake cable and now its on four clicks?

Title: Re: Advice needed - Drum brakes
Post by: Gaffers on 12 December 2011, 20:27:21
Slackened and then tightened to 4 clicks.  Still the same. ???
Title: Re: Advice needed - Drum brakes
Post by: Marks DTM Calib on 12 December 2011, 20:29:48
Well, make sure its slack and dont do anything further to the cable until the shoes are set right and the adjusters working.  :y
Title: Re: Advice needed - Drum brakes
Post by: Matchless on 12 December 2011, 22:19:55
The "teeth" on the adjuster ratchets are very shallow and quite soft steel. One they slip, then they always slip.
I have rescued similar ones on Renaults by recutting the teeth with a triangular needle file.
Title: Re: Advice needed - Drum brakes
Post by: 05omegav6 on 13 December 2011, 01:18:45
Been out and tried it again this time adjusting the handbrake cable by dropping the exhaust and finding the adjuster.

It is still the same, it just takes 4 clicks to engage handbrake rather than 6.  One side is nice and tight the other seems to 'reset' the tension inside the drum on the teeth.

I'm off to peugeot to get a new set of drum internals tomorrow.  What a trip down memory lane that will be *shudder*
Don't forget the Hub nuts too. :y
Title: Re: Advice needed - Drum brakes
Post by: Kevin Wood on 13 December 2011, 09:45:00
Been out and tried it again this time adjusting the handbrake cable by dropping the exhaust and finding the adjuster.

It is still the same, it just takes 4 clicks to engage handbrake rather than 6.  One side is nice and tight the other seems to 'reset' the tension inside the drum on the teeth.

I'm off to peugeot to get a new set of drum internals tomorrow.  What a trip down memory lane that will be *shudder*
Don't forget the Hub nuts too. :y
.. and the box of swan vestas and can of petrol. ;)