June 18, 2004
are two types of mounts to hold the rear caliper to the upright.
The 904 upright can be altered for a 906 and visa versa. The
only difference is the mounting bracket. In these pictures
you can see the difference between the two.
all of them so it was easy to show you the difference.
are the original aluminum rear calipers. 904 were made of
aluminum calipers are Carrera type, which we use on all 906's.
The original calipers aren't up to today's standards for racing.
Besides, these are the calipers that came with the car.
a caliper sits for 30 years, sometimes it's a little tough
to get the pistons out. Andy puts wood spacers between the
pistons and sometimes uses up to 400 psi of nitrogen to blow
the pistons out.
the pistons are removed, the caliper housings are cleaned
with carburetor cleaner, media blasted and re-coated.
Andy has restored all the pieces. Cross over pipes, seals,
and pistons can still be purchased new from Porsche. Note
the tube of rubber grease. This is a product made by ATE for
assembly of brake components.
plating, they look better than new.
order bearings are now showing up and Andy will install them
using Kluber grease. The picture on the right shows Andy pressing
the bearings into the control arm with a regular 3" bench
bearings are also installed in the lower uprights. These are
the aluminum ferrels and nuts that have been re-machined and
polished to accept new yellow anodize.
is still going on, but nearing the end. These are the front
uprights, some steering pieces and brackets.
Previous Update | Next Update