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post #1 of 28 (permalink) Old 30th March 2012 Thread Starter
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Laguna Rear Drum Brakes

Hi people,

Hope all is well. Come out of from the fringes of the forum and decided to ask you knowledgeable people for your opinions on my brakes.

Back ground to the issue is that my car does few miles every week, roughly 30 if lucky, and sits on the drive 5 / 6 days continuously out of the 7.

For a while, despite the handbrake working fine from what tests I can do whilst stationary, the rear drums seem to emit a slight rubbing / light grind noise when braking. This does disappear after driving for a while if I do the odd 15 mile trip out of the town but over night, or reasonable park up, the symptoms would reappear.

I have had the drums off, which are clean and in good shape( no lips or uneven wear, and gave most contact spots and the drum itself a rub / clean with brake cleaner and even greased up the few shoe rest points to see if it helped but soon after the first journey the noise is back. The shoes have plenty of friction material when measured but to me show some slight pitting, as you will see in the images. Is this the issue?

I have taken some snaps of both sets of shoes and a cylinder, from what you can see is there anything not right?

Got MOT in 4 weeks and half minded about changing everything now, pads and cylinders, but given my lack of mileage I know I will have trouble getting any new shoes bedded in in time which raises my concern over braking efficiency tests. Do they need doing to pass the MOT or will they pass as they are given that they seem to be effective when applying force when the handbrake is on.

With this being my first ever car with drums I am not 100% on the noises. Any suggestions will be greatly appreciated?.

Right (Off)Side

Left (Near) Side

Right Cylinder (both look identical to this)

Large images here

I look forward to your kind help, thank you in advance.
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Last edited by Gonescenile; 13th April 2012 at 09:03 AM.
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post #2 of 28 (permalink) Old 31st March 2012
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Re: Laguna Rear Drum Brakes

It sounds to me as if the brakes might be sticking a little and it's probably down to the lack of use but if you check the wheels to make sure they spin reasonably well without much effort and theirs no binding and check theirs no play in the bearings and if that checks out ok then i'd recommend using the car more frequently to help even the wear out on the shoes and it shouldn't be a problem on the mot .

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post #3 of 28 (permalink) Old 31st March 2012
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Re: Laguna Rear Drum Brakes

just driving down the road and pulling on the handbrake should scrape off any rust on the inside of the drums.
I'd be more worried about the brake cylinders pistons seizing up which they are liable to do, if left long enough.
giving them a light tap with a hammer on a screwdriver placed on the end of each piston to free them up should be ok.
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post #4 of 28 (permalink) Old 31st March 2012
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Re: Laguna Rear Drum Brakes

Lift the edges of the rubber boots on the cylinders and have a look inside. Any signs of corrosion of leaking is not a good sign.

Whilst the drum may look OK it may be well out of shape but an MOT test usually detects severe signs of ovality.

Also try filing a 45 dgeree angle edge to both the leading edge and trailing edges of the shoes.

Brake drums and shoes are porous and can retain quite a bit of moisture when not used or get up to working temperature.
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Re: Laguna Rear Drum Brakes

Thanks for your input so far people.

I managed to get a drive in this morning and things sounded 'cleaner' by the end of it, but that is the same as always. Will see what it is like when I take it out for a run again in the tomorrow ( shock 2 days in row driving) prior to taking everything off again to check the cylinder boots.

I don't mind having to do the work its just the dreaded MOT, if I can pass the brake tests as it is now I am good then I will certainly replace the parts once it is out the way. The handbrake certainly seems to do its jobs as the car will rise good at the back before any real movement, same goes with pulling forwards.

Roll on Sunday, will report back possibly with images of the streets new communal heating system
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