MSD 84697 Chevy V8 Crank Trigger Distributor Installation User Manual

Msd billet crank trigger distributors

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MSD Billet Crank Trigger Distributors

PN 84697, PN 8558 and PN 84698 (GM DRCE Block)

Note: Read these instructions completely before attempting the installation.

Parts Included:

1 - MSD Distributor Assembly

2 - O-Rings

1 - Tube of Gear Lubricant

Replacement Parts:

Rotor and Base, PN 8457

Cap, PN 8408

GM DRCE Bronze Gear, PN 84711

WARNING: During installation, disconnect the battery cables. When disconnecting the cables,

always remove the Negative cable first and install it last.

Note: A Crank Trigger must be used with this distributor.

An MSD Billet Hold-Down Clamp, PN 8110, is recommended.

REMOVING THE DISTRIBUTOR

1. Remove the existing distributor cap without disconnecting any

of the spark plug wires.

2. With the cap off, rotate the engine or until the rotor is aimed at a

fixed point on the engine or firewall. Note this position by making

a mark (Figure 1).

3. Place the distributor cap back on and note which plug wire the

rotor is pointing to. MARK THE SPARK PLUG WIRES and remove

the distributor cap.

4. Loosen the distributor hold-down clamp and slide the clamp

out of the way.

5. Lift the distributor out of the engine. Note that the rotor rotates

as you lift the distributor out. This is due to the helical cut gear

and should be taken into consideration when installing a new

distributor.

1 - Gasket

1 - Rotor Phasing Tech Brief

Figure 1 Marking the Rotor Location.

Chevrolet Bronze Gear:

Standard (0.500" ID), PN 8471

Oversized (+0.006"), PN 8472

M S D  

•   W W W . M S D P E R F O R M A N C E . C O M   •   ( 9 1 5 )   8 5 7 - 5 2 0 0   •   F A X   ( 9 1 5 )   8 5 7 - 3 3 4 4

ONLINE PRODUCT REGISTRATION: Register your MSD product online and you’ll be entered

in our monthly 8.5mm Super Conductor Spark Plug Wire give-away! Registering your product

will help if there is ever a warranty issue with your product and helps the MSD R&D team create

new products that you ask for! Go to www.msdperformance.com/registration.

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