6
INSTALLATION INSTRUCTIONS
AUTOTRONIC CONTROLS CORPORATION
• 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344
INSTALLING THE DISTRIBUTOR
1. Set the No. 1 cylinder toTDC under compression.
2. Remove the distributor cap. Note the position of the rotor and which spark plug
terminal it is pointing to. Mark the plug wire and the position of the rotor.
3. Remove the distributor
and the distributor
shaft spring.
3. Make sure the position
of the distributor
driveshaft slot is
perpendicular to the
case seam (Figure 7).
If not, move it to the
proper position.
Figure 7 Distributor Driveshaft Position.
4. Remove the original clamp stud and install the supplied longer stud at least 1/2"
into the case. Place the supplied spacer over the stud.
5. Install the collar and clamp to the distributor and snug the bolts (Figure 8).
Install the distributor into the engine making sure that it bottoms out on the
driveshaft.
6. Screw the nut onto the clamp stud
and finger tighten. Locate the
supplied shims and set one
0.010" shim aside.
7. With the remaining shims, make
a stack that fits the gap between
the clamp and the distributor
housing (Figure 8). It is
recommended to use a shim
stack that is slightly thicker than
the gap up to 0.005" however, it
may be 0.002" thinner.
8. Remove the distributor then
remove the clamp and collar. Add
the one 0.010" shim that you set
aside to the shim stack and place
them on the distributor.
9. Install the clamp and collar so the
shims are sandwhiched between
the housing and the clamp.
Tighten the clamp and install the
two o-ring seals or use the original seal if it’s in good shape.
10.Install the distributor shaft spring and the distributor. Make sure the rotor is
pointing to the number one terminal of the distributor cap.
11.Install the cap and spark plug wires. If you are using the original spark plug
wires, the terminals and boots must be replaced with MSD 90° boots and
terminals, PN 8850. MSD offers a set of custom length Heli-Core Wires for VW,
PN 3193.
Figure 8 Measuring the Required Distributor Shims.
