Rear LH brake drum noise and overheating

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Bison535
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Location: Gibraltar

Rear LH brake drum noise and overheating

Post by Bison535 »

Before my recent MOT I replaced both sets of the rear brake linings and adjusted all round and checked Handbrake; MOT passed.
However, after driving a few thousand miles trouble free I now experience an occasional 'humming' from the LH Rear brake drum after a 20km drive and the Brake Drum gets very hot ( the brake ling must be contacting the drum !) If, when this happens, I dab the foot brake pedal the 'humming stops' for a period of time but then returns minutes later. I can create the same scenario if I yank quickly on the Handbrake whilst driving !??

I have since opened up the LH Rear brake drum and cleaned out accumulated dust and the linings, springs etc all look good as new ! I have also slackened off the adjuster ( more than the RH ) BUT the 'humming' and heated Brake Drum still reoccurs !!!! ?????

Any ideas of what steps to take next to overcome this issue much appreciated :ok

1990 T25 - AAX 1.9 TD

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Cobra88
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Re: Rear LH brake drum noise and overheating

Post by Cobra88 »

I would check that all the springs are correctly fitted as it's quite easy to get a couple of them wrong.

also if you bought any new parts I found replacement hold down pins that where too long from JK and made the brake shoes sit oddly

should be as per pic
Image
possibly easier with coloured springs :ok
Image
____________________________________________
84 CaravelleGL 1.9 DG WBX Bronze Beige Metallic auto

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937carrera
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Re: Rear LH brake drum noise and overheating

Post by 937carrera »

Check the wheel bearings for play too.

Can I be the first to ask where you can buy coloured brake springs :rofl
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine

Bison535
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Posts: 111
Joined: 22 Oct 2016, 06:59
80-90 Mem No: 15671
Location: Gibraltar

Re: Rear LH brake drum noise and overheating

Post by Bison535 »

Hi Cobra88 great pics !

I also attach a pic of my recent new brake shoe fitting, springs etc look ok ???

Couldn't purchase the 'colored springs', only available in space :D

So, what next :?:
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