[T3] Early Front Brake Cylinders?

[Jim Adney]

I've never had a Type 3 early enough to have front drum brakes, so 
I'm not familiar with the different versions that were used on the 
'61-65 cars. The microfilm shows 3 versions. Version 2 & 3 look alike 
and use the same illustration; version 1 looks completely different.

I have some of those version 2 or 3 cylinders here that people have 
sent me, and they all look alike except for one little detail: The 
slot in the piston, for the brake shoe, is ~4mm wide in some and ~6mm 
wide in others. From looking at the parts lists, only the pistons and 
adjusters seem to be different. (VW did not sell the body castings 
separately, so there might be some minor difference that I haven't 
noticed.) All are 22.2 mm (7/8") dia. I don't have most of the 
adjusters, so I can't check the slot widths in them, but I assume 
they were the same 2 widths.

Can anyone tell me if this is the difference and, if so, which one is 
the earlier version?

And, BTW, if you have brake parts that you think might be useful 
someday. Please don't just set them aside to rebuild later, when you 
need them. Brake parts left sitting with brake fluid in them will 
rust badly in storage and become much less likely to be rebuildable. 
Rebuild them NOW, then store them dry.

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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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