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 Post subject: Dmax Brake Lining Wear
PostPosted: Tue Jun 09, 2020 12:56 pm 
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Joined: Tue Jun 09, 2020 12:51 pm
Posts: 1
Hello,

Could anyone please provide some input on the expected wear of rear drum shoe lining. The attached image shows the wear on my 2015 4x2 crew cab low 138,000. This seem abnormal wear. By the workshop manual I believe the tolerances of a standard lining of 5.0mm(new) with a limit of 1.0mm before replacement (would replace at 2.0mm) although I expected uniform wear.

Any suggestions on what if anything should be done, and is this normal or a malfunctioning cylinder? Thanks


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Brake_Lining138k.jpg
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PostPosted: Tue Jun 09, 2020 1:52 pm 
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Joined: Sat Oct 12, 2013 5:36 pm
Posts: 1641
apricot.
The wheel cylinder has nothing much to do apart from actuate the brake shoe, so it isn't the problem. Fairly normal wear as the cylinder applies the shoe but because of rotation and friction it is forced downward and tends to wedge the lower end. Therefore, it has the highest friction and pressure and will be less thickness after a time. To get maximum life from the shoes, you can remove the brake shoes and transpose them from front of axle to the rear. The self adjuster pin with the C clip will also have to be fitted to the front shoe which then become the rear shoe. same shoes running in same drum in same orientation to the drum just alternate position. I did that on my 69 series LC and the brakes were still roadworthy after 200,000km.


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