To the best of my knowledge, only the ATE cylinders have the springs. The
dealer often supplies the brazillion cylinders which do not. Go figure. I
guess those busses don't have the self adjusting brakes.

Dennis

>From: Shawn Wright <vwdiesels@GMAIL.COM>
>Reply-To: Shawn Wright <vwdiesels@GMAIL.COM>
>To: vanagon@GERRY.VANAGON.COM
>Subject: Wheel cylinders with oem spring?
>Date: Tue, 10 Apr 2007 20:42:02 -0700
>
>A while back, I think it was Dennis Haynes who mentioned the difference
>between OEM rear
>wheel cylinders with a spring to eliminate the need for pumping (or
>something like that). Now
>I want to do my rear brakes and I can't find the post...
>
>My brakes were done at the dealer around 100k kms ago (11 years ago!), with
>new drums
>and wheels cylinders (by the PO), so I assume they used OEM cylinders, but
>I do seem to
>have the pedal bleed down issue, where I need to pump the pedal once or
>twice to get a solid
>feel. Front brakes have new pads, calipers, and machined rotors, and all
>fluid has been
>flushed every 2 years. The pedal issue has been constant for many years, as
>long as I can
>remember.
>
>I would rather do the rear brakes now, and not look at them again for
>another 10 years (aside
>from fluid changes). So which wheel cylinders do I get for the oem
>performance? I'm puzzled
>as to why my dealer serviced brakes have always had this issue, unless the
>dealer didn't use
>OEM parts, or I have some other issue with similar symptoms.
>
>
>Shawn Wright
>http://members.shaw.ca/vwdiesels
>'88 Westy 1.6TD 5 speed
>'85 Jetta Diesel 1.6NA