Grinding rear brake, the crud i found inside..

Big lumps of metals and spanners. Including servicing and fluids.

Moderators: User administrators, Moderators

Post Reply
User avatar
slowcoach
Posts: 1241
Joined: 06 May 2010, 10:23
80-90 Mem No: 8892
Location: West Yorkshire
Contact:

Grinding rear brake, the crud i found inside..

Post by slowcoach »

Ive had a grinding sound from the the nearside rear drum brake for a while, juist when applying brakes, and not a cyclical noise.I thought i might need new shoes, maybe they were down to the bone.  Ive opened it up with a bit of lump hammer whacking on the drum to chock it loose, and found this desposit loose in the bottom:
Image

it looks like pieces of brake material? all springs and components inside look to be there, i dont see anything obviously broken.  But some of thoise pieces are a quite few mm in size. 

Here are the brake shoes, or al least one of them, the other looks the same:

Image

Theres no chunks missing, but theres definitely more meat at the bottom than on the top, on both sides.  Is this normal?  or do I need new shoes? (I cant even say how old the shoes are!).  My handbrake is very poor too, and the adjuster/balance bar underneath the van is at quite an angle.

Ive put it back together and the grinding sound had almost gone- might need a bit more driving to clear anything else out.

Ive not done anything with rear brakes before, bit afraid of all the springs and adjusters!
===================
1984 TRAKKA Conversion Subaru EJ20 5 Speed

User avatar
Aidan
Trader
Posts: 5212
Joined: 11 Oct 2005, 19:21
80-90 Mem No: 742
Location: Llanfyllin, mid Wales : )
Contact:

Re: Grinding rear brake, the crud i found inside..

Post by Aidan »

looks like the friction material is delaminating from the steel backing plates so I'd be fitting new brake shoes and check the pistons aren't leaking as it all look a bit damp, brake fluid will contaminate the friction surfaces, you need to lift the lips seals on the pistons to check, generally they are all p poor these days, the oem ones used to last years the cheap one a year or two, but these days they all barely make the 24 month warranty period

User avatar
slowcoach
Posts: 1241
Joined: 06 May 2010, 10:23
80-90 Mem No: 8892
Location: West Yorkshire
Contact:

Re: Grinding rear brake, the crud i found inside..

Post by slowcoach »

Thanks Aidan. I'll order new shoes and probably springs. Brickworks have OEM cylinders fir £15 a pop- I suppose you'd recommend those instead of £10 aftermarket? I think handbrake cables will be good idea too.

I've lost my outside workspace due to some neighbouring construction project , so I'll have to get the mechanic
===================
1984 TRAKKA Conversion Subaru EJ20 5 Speed

User avatar
Dazco
Posts: 2250
Joined: 18 Dec 2011, 15:44
80-90 Mem No: 10544
Location: Sheffield. 1984 autosleeper trooper. 1.9 petrol called Jambo

Re: Grinding rear brake, the crud i found inside..

Post by Dazco »

Go for the better quality slave cylinders. I fitted cheap ones a few years back , had to change them again a few months later as the seals had popped.
Check ya nuts
http://forum.club8090.co.uk/viewtopic.php?t=96433" onclick="window.open(this.href);return false;
Auto sleeper fitted with EJ 20 subaru lump

Post Reply