Brake mechanism for EW with LHS brakes

[Ian]

Hi folks - hopefully someone can help me here. I have pulled apart the brakes on my E28 to set them up properly and apart from a drum that will not sit on its spline straight I found that the back brake has the wrong cam - its for a RHS brake like on the OC so would not work very well. Has anyone got a mechanism and band they would part with ? I can't even put the correct one thats on the front over to the back as the spline for the brake level is square on that one and I can't get the right lever angle

[Alan Cun]

Hello Ian,  I have fitted a lot of band brakes to Dougs and found the only difference is in the size of the axles through the backing plates and maybe the removal of one of the 4 adjusting bolts to centre the band. The direction of rotation for the band is easily changed by driving out the two pins on the splined cotton reel. Turn the band over and reassemble the spline and pins and you have a change in direction. Although the pins look to be heavily centre punched they will remove quite easily.

regards Alan

[Ian]

Thanks Alan - looked to me as though the pins were offset to take into account the different rotation - do I have to drill an opposite offset hole for the outer trailing side ?

[Alan Cun]

You won't have to drill any new holes. Just set it up so that the cam action now works in the direction you want. If the pins are put in the wrong place it won't close up to the correct diameter. You will notice the hooks on the inside circumference that take the 3 springs may be facing the wrong way but doesn't  really pose a problem.

[Ian]

Thanks Alan