Msd 8485 VW Billet Distributor Installation User Manual download pdf

Important: Read these instructions before attempting the installation.

Parts Included:

1- Billet Distributor

2 - #10 Disc Washers

3 - Advance Stops

1 - Retaining Nut

7 - Shims

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

MSD Billet VW Distributor

PN 8485

1 - Clamp Stud

4 - Advance Springs

1 - Hold Down Bracket

2 - O-Rings

TIMING FUNCTIONS

Before continuing with the installation, here are a few deﬁnitions you should be aware of:

Initial Timing: This is the base timing of the engine before centrifugal advance begins.

Centrifugal Advance: The centrifugal advance mechanism is made up of weights, springs, advance

cam, and an advance stop bushing. The amount and rate of advance that your distributor is capable

of is determined by the centrifugal timing. If you ever wish to lock out the centrifugal advance, refer

to the centrifugal advance section.

Total Timing: This is the total of the initial timing plus the centrifugal advance added together. Example:

10° Initial + 25° centrifugal = 35° Total Timing.

CHOOSING AN ADVANCE CURVE

The function of the advance curve is to match the ignition timing to the burning rate of the fuel and

speed (rpm) of the engine. Any factor that changes the burning rate of the fuel or the engine speed

can cause a need for an ignition timing change. Figure 1 shows some of the factors that will affect

engine timing.

ONLINE PRODUCT REGISTRATION: Register your MSD product online. 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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Summary of Contents

Page 1 - MSD Billet VW Distributor

Important: Read these instructions before attempting the installation.Parts Included:1- Billet Distributor2 - #10 Disc Washers3 - Advance Stops1 - Re

Page 2 - 2 INSTALLATION INSTRUCTIONS

2 INSTALLATION INSTRUCTIONSM 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

Page 3 - CENTRIFUGAL ADVANCE CURVE

INSTALLATION INSTRUCTIONS 3M 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

Page 4

4 INSTALLATION INSTRUCTIONSM 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

Page 5 - INSTALLATION INSTRUCTIONS 5

INSTALLATION INSTRUCTIONS 5M 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

Page 6 - INSTALLING THE DISTRIBUTOR

6 INSTALLATION INSTRUCTIONSM 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

Page 7 - TECH NOTES

INSTALLATION INSTRUCTIONS 7M 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

Page 8

Limited Warranty MSD warrants this product to be free from defects in material and workmanship under its intended normal use*, when properly installe

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Msd 8485 VW Billet Distributor Installation User Manual

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