sharas

Thanks everyone for time and effort especially to "fabdavrav" and "Salut". I cleaned rear drums and brake shoes with brake cleaner, sandpapered a bit brake shoes and bled the brake system. My Roomster passed -- imbalance 6%, service brake effort 92%. I know it wasn't wise to use WD-40 I had bad experience with garages before so it is not easy to find competent people to do the job.

I wasn't adjusting at all. I don't know how to adjust- there is some pressure rode but I didn't touch anything. After I applied WD-40 the imbalanced changed so I presume thats the case :S I see that nearside brake and handbrake power(kN) is the same and offside is different so maybe it needs some adjustment. But how to adjust correctly?

Hi all, My car is Roomster 1.2 and I'm very happy with it . Half year ago I changed front brake pads. I failed National Car Test(NCT) twice due to rear drum brake imbalance: 1st time nearside brake was 2120kN Offside brake was 1330kN --imbalance 37% parking brake nearside 2120kN and offside brake 0810kN --imbalance 62% and nearside rear wheel was sticking. So I cleaned the nearside back drum with WD-40 removed the dust and rust and the wheel span perfectly with no sticking. So I thought I'll be fine 2nd time nearside brake was 1220kN and Offside brake was 2270kN --imbalance 46% parking brake nearside 1220kN and offside 1810kN -- imbalance 33% I think the problem was WD-40. The brake shoes are in good condition- very little worn. So now I cleaned both rear drums with white spirit. There is no garage to test brake imbalance and the next NCT is on Saturday. Any thoughts or ideas will be appreciated.