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Rear Drum Adjustment...wheel Doesn't Lock


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#1 mk=john

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Posted 16 October 2010 - 05:54 PM

Hi
I have all brand new brake components on my 1960mini, as part of its restoration. The front brakes are twin leading drums.

Anyway, today I set about to adjust the brakes. I followed the Haynes manual, and adjusting the front twin leading shoes were easy, the wheel locked when I turned the adjustment bolts.

But when I came to the rear, I found that the brakes do not lock. The shoes are rubbing slightly against the drum in one area but turning the adjustment bolts seems to make no difference, the dont lock.

Is there something I have done wrong when assembling the brakes?

Thanks

John

#2 pikey7

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Posted 16 October 2010 - 06:00 PM

Is there something I have done wrong when assembling the brakes?

Thanks

John


yes! :D

dunno what though... do they look like this:?

Attached File  Brakes_rear_assembly.jpg   189.13K   26 downloads

(image nicked off google somewhere...)

#3 lrostoke

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Posted 16 October 2010 - 06:05 PM

you do realise you keep screwing the adjuster in, it isn't a cam like the front adjusters.

#4 mk=john

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Posted 16 October 2010 - 06:27 PM

you do realise you keep screwing the adjuster in, it isn't a cam like the front adjusters.

Ahhh. I know the shape of the adjuster on the inside is just a square. so, should i keep on turning in? i doid notice on assembly that the bits that make contact with the adjuster have a taper on the ends.

So, I keep adjusting as far as they will go?

#5 lrostoke

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Posted 16 October 2010 - 06:43 PM

yes keep screwing them in until the wheel locks, then unscrew a quarter turn.
Wheel should then free off but have some friction

#6 jameswhiles

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Posted 16 October 2010 - 07:17 PM

As you adjust them up you will feel it get tighter then looser at every quater of a turn because the adjuster is a square, get the wheel to lock then back off a quarter of a turn at a time until the wheel is free with a little bit of friction

#7 mk=john

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Posted 16 October 2010 - 07:57 PM

As you adjust them up you will feel it get tighter then looser at every quater of a turn because the adjuster is a square, get the wheel to lock then back off a quarter of a turn at a time until the wheel is free with a little bit of friction


Hi

Thanks guys for the help. Silly me! I went to the garage just now and continued to turn the adjusters, and like you said, eventually the wheels locked! For both the LH and RH side, I had to back off 3 quarter turns and there is a little localised friction in both cases, and I guess by backing off the same amount the brakes are balanced left and right.

Thanks for the help........i feel a bit sill for asking such a simple question!

John




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