MSD 8468 Installation

Vacuum Advance Lockout

PN 8468

If you do not want to use the vacuum advance canister of the MSD Distributor, MSD has supplied the distributor with a lockout mechanism. The Lockout bolts in the position of the vacuum canister and will hold the pickup assembly ﬁrmly in place. The installation is easiest with the distributor out of the engine.

1. Remove the two Allen head screws that hold the advance canister (Figure 1).

RELUCTOR PADDLES

MAG PICKUP PLATE

2. Remove the snap ring that holds the magnetic pickup assembly in place. This is easy to do with a set of snap ring pliers by straddling one of the reluctor paddles.

3. Gently lift up on the mag pickup plate and slide the vacuum canister out.

4. Install the Lockout Plate in place of the canister. Install the two retaining screws but do not tighten at this time.

5. Install the supplied self tapping screw and washer through the Lockout and tighten. It is important to make sure the pickup plate is parallel with the housing of the distributor (Figure 2). If it is cocked or slanted, the paddles of the reluctor may contact the pickup. Check

SNAP RING

CANISTER SCREWS

Figure 1 Removing the Vacuum Canister.

the clearance by rotating the distributor shaft. If necessary, use the supplied shims under the Lockout hold-down to correctly position the pickup plate.

Note: If no shims were required, use one beneath the washer of the Lock-Out Hold Down Screw.

RELUCTOR PADDLES

LOCKOUT

SCREW/WASHER

MAG PICKUP PLATE

IF NECESSARY,

SHIM HERE

LOCKOUT PLATE

DISTRIBUTOR HOUSING

MAG PICKUP PLATE AND HOUSING MUST BE PARALLEL. (SHIM IF NECESSARY)

Figure 2 Checking Installation of the Lockout Plate.

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6. After checking the reluctor to pickup clearance, tighten the Lockout retaining screws and install the snap ring.

7. Install the distributor, rotor and cap. Check the timing when complete.

Note: Do not forget to plug the original

vacuum advance hose.

LOCKOUT PLATE

SNAP RING

LOCKOUT

HOLD-DOWN

Figure 3 Installation of the Vacuum Lockout Plate.

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.msdperformance.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 at (915) 855-7123. MSD technicians are available from 7:00 a.m. to 5:00 p.m. Monday - Friday (mountain time).

Limited Warranty

SD warrants this product to be free from defects in material and workmanship under its intended normal use*, when properly installed and purchased from an authorized MSD dealer, for a period of one year from the date of the original purchase. This warranty is void for any products purchased through auction websites. If found to be defective as mentioned above, it will be repaired or replaced at the option of MSD. Any item that is covered under this warranty will be returned free of charge using Ground shipping methods. This shall constitute the sole remedy of the purchaser and the sole liability of MSD. To the extent permitted by law, the foregoing is exclusive and in lieu of all other warranties or representation whether expressed or implied, including any implied warranty of merchantability or ﬁtness. In no event shall MSD or its suppliers be liable for special or consequential damages. *Intended normal use means that this item is being used as was originally intended and for the original application as sold by MSD. Any modiﬁcations to this item or if it is used on an application other than what MSD markets the product, the warranty will be void. It is the sole responsibility of the customer to determine that this item will work for the application they are intending. MSD will accept no liability for custom applications.

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FRM28842 Revised 12/11 Printed in U.S.A.