MSD 83921 HVC Professional Racing Distributor for Chevrolet Installation - Manual (Page 4)

M S D I G N I T I O N • w w w . m s d i g n i t i o n . c o m • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • FA X ( 9 1 5 ) 8 5 7 - 3 3 4 4
© 2007 Autotronic Controls Corporation
FRM28906 Revised 08/07 Printed in U.S.A.
Figure 8 Installing New Seals.
Figure 9 Installing the New
Bearing.
FLAT SIDES OF
SEALS MUST
FACE EACH
OTHER.
Figure 11 Checking Gear to Housing Clearance.
GREATER THAN
0.015"
Figure 10 Checking Bearing to Housing Clearance.
BEARING SHOULD
PROTRUDE BY
0.005"-0.010"
Figure 7 Removing the Reluctor.
TOOL
PN 83492
3/4"
WRENCH
5/16"
SOCKET
10. While the lower housing
is heating, install the
new bearing on the
shaft (Figure 9).
11. I n s t a l l t h e s h a f t
assembly into the
lower housing. It is
fully seated when the
bearing protrudes
approximately 0.005”
– 0.010” out of the
housing (Figure 10). If the clearance is more, the
housing may have cooled too much before the bearing was fully
installed.
12. Install the gear.
a. Chevrolet – Check clearance between gear and housing. It should be
greater than 0.015”. If under 0.015” the bearing may not be seated
correctly (Figure 11).
b. Ford – Install gear spacer. Press on gear leaving 0.005” clearance
between it and the spacer.
c. Mopar R5 – Install gear spacer and shim. Check clearance between
gear and spacer. It should be between 0.005”-0.010”. If under 0.005”
the bearing may not be seated correctly.
d. Toyota – Install gear spacer with roll pin. Press on gear until it stops against the spacer.
13. Assemble the upper housing.
14. Install Pickup screws.
15. Install reluctor using special tool PN 83492. Apply moly lube to the nut and torque to 10 lb-ft. (Figure 7).
16. Adjust pickup phasing and tighten the pickup bolts.
service
In case of malfunction, this MSD component will be repaired free of charge according to the terms of the warranty.
When returning MSD components for warranty service, Proof of Purchase must be supplied for verification. After
the warranty period has expired, repair service is based on a minimum and maximum fee.
All returns must have a Return Material Authorization (RMA) number issued to them before
being returned. To obtain an RMA number please contact MSD Customer Service at 1 (888) MSD-7859 or
visit our website at www.msdignition.com/rma to automatically obtain a number and shipping information.
When returning the unit for repair, leave all wires at the length in which you have them installed. Be sure to include
a detailed account of any problems experienced, and what components and accessories are installed on the vehicle.
The repaired unit will be returned as soon as possible using Ground shipping methods (ground shipping is covered
by warranty). For more information, call MSD Ignition at (915) 855-7123. MSD technicians are available from 7:00
a.m. to 6:00 p.m. Monday - Friday (mountain time).