Lingenfelter L250090309 Lingenfelter C6 ZR1 Corvette Supercharger Pulley 2009-12 v1.2 - Manual (Page 21)

72. Place the LPE pulley on the bearing shaft,
then use a machine press to press the new
pulley on to the supercharger front cover until it
is flush with the bearing shaft.
Steps 73-76 are optional. Since the
supercharger pulley is spinning at higher
RPM and driving more load than the stock
pulley, pinning the pulley is recommended
but not required. LPE pins all of their
supercharger pulleys.
1.55 FROM
TOP
1.88 OD
NOTES:
1. ALL RADII TO BE 0.010" UNLESS STATED OTHERWISE.
2. BREAK ALL EDGES; 0.010" MAX.
SCALE:
SIZE DWG. NO. A REV.
MATERIAL
FINISH
DO NOT SCALE DRAWING APPLICATION
USED ON NEXT ASSY
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH BEND
TWO PLACE DECIMAL 0.01*
THREE PLACE DECIMAL 0.005*
*UNLESS STATED OTHERWISE
NAME DATE
DRAWN
CHECKED
ENG APPR.
MFG APPR.
Q.A.
SHEET 1 OF 1 WEIGHT:
COMMENTS:
REVISIONS
DESCRIPTION REV. DATE APPROVED
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
LINGENFELTER PERFORMACE ENGINEERING.
ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
LINGENFELTER PERFORMACE ENGINEERING
IS PROHIBITED.
PROPRIETARY AND CONFIDENTIAL
DWG. NAME
69. Start by marking both of the tabs with a
black marker. Make sure that the you do not
go below your mark in the machining process.
LPE suggests using an adjustable boring head
or a die grinder to remove material. Remove
the tabs 1.55” down as illustrated in the next
step.
NOTE: If you are using a 2.38” pulley,
additional maching is required. See steps 70
and 71.
70. Using a runout gage, locate your end mill
to be concentric with the inside of the jackshaft
housing (you may also use the jackshaft itself
to center the endmill). You can complete the
machining with the jackshaft installed if your
boring gage allows it, otherwise you will need
to remove the jackshaft. If you remove the
jackshaft, you must replace the bearings.
See the next step for the dimensions of the
machined part.
71. These are the dimensions that you will
need to use to machine your jackshaft support.
Page 20.