Mallory Ignition Mallory Promaster Distributor 8350m_8352m_8354m_8360m_8361m - Manual (Page 5)

PROMASTER
®
SERIES - GM
INSTALLATION INSTRUCTIONS
FORM INST85551M 05/12
HOW TO INSTALL THE DISTRIBUTOR
1. Disconnect the trigger wire from the coil (-) terminal.
Locate the spark plug wire on the original distributor
cap that that is used to set engine timing. See a
service manual for this location. Mark the distributor
cap and distributor housing at this spark plug wire
position.
2. Turn the engine crankshaft in the direction of rotation
until the timingmark lines up with the top dead center
(TDC) mark on the timing tab. See a service manual
for these locations.
3. Remove the distributor cap from the distributor. Do
not remove the sparkplug wires or coil wire at this
time. Make sure the rotor blade points to the mark
made on the distributor housing (from Step 2). If it
does not, repeat Step 2 until the timing mark lines
up (again) with the TDC markon the timing tab.
NOTE: Once you are finished with Step 3, DO NOT turn the
crankshaft until the new distributor is installed.
4. Note the direction that the rotor is pointing. If you
are replacing a vacuumadvance distributor, note the
direction the vacuum chamber is pointing. Remove
the distributor hold down clamp and remove the
distributor fromthe engine.
5. Lower the new distributor into position. The rotor
should be aimed at the same fixed point as was the
rotor from the old distributor. After the new distributor
has been lowered into place, you may find that it
hasn’t seated firmly against the intake manifold. This
indicates that the lower end of the distributor shaft is
not properly aligned with the oil pump drive rod. Do
not attempt to force the distributor into position.
6. Install the gasket using plenty of the supplied lubricant.
7. Reinstall the hold-down clamp and thread the bolt
just enough to exert a very slight pressure against the
distributor. If the distributor was not firmly seated,
manually rotate the engine until the distributor drops
down into place.
8. With the distributor properly seated, tighten the
hold-down bolt just enough so that the distributor
is held in place, but can still be rotated with a little
effort.
9. Remove the plug wires one at a time from the old
cap and install them in the corresponding positions
of the new cap. After all wires have been transferred,
verify that the wire in the terminal post that is aligned
with the rotor leads to number one cylinder. If you are
unsure of cylinder number position or firing order, this
information can be found in the service manual that
covers your particular engine. Put on the distributor
cap.
10. Reconnect the wiring lead from the distributor to the
ignition switch. At this time you can begin timing.
1 – Machined Chevy V8 Distributor
1 - Rotor
1 - Distributor Cap
1 - Wire Retainer
2 - 1.5” Self Tapping Screws
1 - Advance Kit
1 - Gasket
1 - Tube of Gear Lubricant
2 - O-Rings
1 - Vacuum Advance Lock-Out Kit (if equipped with
vacuum advance)
Included with the distributor:
PLEASE READ THESE INSTRUCTIONS BEFORE INSTALLING.
You should always disconnect the battery, negative lead first, before working on the ignition system. When
you are done reconnect the battery installing the negative lead first.
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