Drum brake question-one for the experts.

[wanderer]

Hi,
At my MOT a couple of weeks ago i was shown that my rear wheels were hard to turn and told that my brakes must be binding probably because the wheel cylinders were seized through lack of use.Fair enough i thought i,ll check into it when it stops raining.
Today being fine and dry i jacked it up and found one wheel not too bad but the other quite hard to turn.So i removed the wheel and the locating pins to see if i could get the drum off to investigate but now the drum is rotating freely!!
So i replaced the locating pins and the drum is locked.Slack off pins drum rotates fine.As far as i can see all i am doing is moving the drum back a fraction of a millimeter.Could it be rust on the rear edge of the drum?Any ideas?

 

[btmaldon]

Im not an expert on drums as its probably over 20 years since I changed a set of these but did you take the drum off completely?

It could be a build up of dust etc or the self adjuster has gone past the point of no return.

 

[Noddy]

Untill you take the drum off completely its impossible to say what it is.
However on the 7 Mk1 puntos ive had/got ive always ended up replacing at least 1 rear brake cylinder and now see it as a routine thing.
my advice would be to remove the drums on both sides and have a look.

 

[T14086]

sounds as if they need a good clean