4DM drum brakes

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Neil Jackson
Posts: 16
Joined: Sat Mar 31, 2018 6:59 am
Great Britain

4DM drum brakes

Post by Neil Jackson » Tue Jul 30, 2019 1:07 pm

I'm currently overhauling my 4DM drum brakes which are in need of new linings (at least). Does anyone have a good picture of a correctly assembled shoe setup? I know there is a picture in the workshop manual which I've downloaded (Fig M3 on page M5) but it's not very clear. My shoes are definitely installed wrong as the leading edge on both shoes are at the abutment end, plus the springs have been rubbing on the centre boss of the drum so they were probably in the wrong holes as well.
Regards
Neil



Neil Jackson
Posts: 16
Joined: Sat Mar 31, 2018 6:59 am
Great Britain

Re: 4DM drum brakes

Post by Neil Jackson » Fri Aug 02, 2019 9:19 pm

I found a nice picture in AKD3517:

Image

Now why didn't I think of looking there before :oops:

That sorts out my query about the shoes orientation, mine were definitely wrong. Looking at the above pic, it suggests the springs are hooked on behind the shoes, mine were in front. I'm thinking that might be why my springs have been rubbing against the drum centre boss.
Has anyone got any thoughts on this?

Regards

Neil

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