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Micha
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How do you use this strange cam bolt while calibrating these kind of drum brakes?

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Michael Steinmann
R51/3 1952
Engine Nr. 529466

schrader7032
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VBMWMO #7032
San Antonio, TX
Joined: 10/27/2006
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See if this provides some
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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

Micha
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Thanks, Schrader. I looked

Thanks, Schrader.
I looked at it already before, it isn't the exact front that I have on my older R51/3. I thought that there is maybe something more suitable. What is the purpose of this cam bolt anyway? I read that it is the "stop for the brake shoe", but is there a better explanation?

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Michael Steinmann
R51/3 1952
Engine Nr. 529466

schrader7032
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San Antonio, TX
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I suspect that those who have

I suspect that those who have the Barrington book for the R51/2/3 plungers probably have a better explanation.

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

Beemer100
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The strange cam bolt

The strange cam bolt pre-adjusts the first brake shoe (don'T remember if it is the "leading" or the "following" shoe). Assemble the whole thing according to the book. Then you make sure the front wheel turns freely in the drum. Loosen the nut of the "strange" cam bolt and turn the cam bolt until the wheel doesn't turn anymore. Go back a little so that the wheel JUST turns. Then adjust the other brake shoe with the cable bolt. I hope I am clear, it's better explained in the standard manual (page 66 I guess)

Micha
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great explanation and thanks

great explanation and thanks everyone.

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Michael Steinmann
R51/3 1952
Engine Nr. 529466

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