S&S Cycle Prostock Racing Camshafts Part 33-5085 - Manual (Page 4)

2. For additional information, Contact Advanced
Racing Technology, Inc. Route 360 Box 247,
Burgess, VA 22432 Ph. 804-453-3357. An
alternative trial and error method is to use
heavy leather strips to protect the cam and
lobe while moving the lobe with an adjustable
wrench. See Picture 6.
3. Place cam back into engine and check the
adjustment. Repeat the degree and lobe
adjusting procedure until each valve opening
is at the desired degree. After the degree
procedure has been completed on both
cylinders, and all four lobes have been set to
their final position, the camshafts are ready to
be welded.
4. Welding Cam Lobes Into Position
Cam lobes must be welded to the camshaft before use.
NOTE: Clean all parts thoroughly with an evaporative
solvent before welding. Use care not to disturb lobe
position.
A. Locate the camshaft in a suitable fixture that will
allow easy access for the welder, and prevent
arcing to the cam lobe surface. A homemade jig
and fixture consisting of a vice, ball bearings and
wire works well. See Picture 7.
B. Weld cam lobes 180 degrees around the base circle
using the TIG process. Stainless steel alloy filler rod
is recommended. See Picture 8.
NOTE: The welding operation should only be performed
by an experienced TIG welder. Be careful not to arc to or
otherwise damage cam bearing or lobe surfaces. Welded
cams cannot be returned or exchanged.
4
Picture 6
CAUTION
Picture 7
Picture 8
Place jig in vice
screw holes for
added stability.