Edelbrock Pro-Tuner, User Manual

Page: 39 / 235

Installation and Setup 39
Figure 14
INSTALLATION PROCEDURE O-RING SEALS
The Pro-Tuner Distributor features an o-ring groove in the uppermost bottom land of the
housing in order to seal the oil gallery. The o-ring should only be installed if the block
has been modified. See Distributor Specifications for procedure.
CHECKING THE DISTRIBUTOR DRIVE GEAR MESH
It is recommended to check for proper gear mesh between the drive gear on the
camshaft and the drive gear on the distributor. In order to check the mesh, coat the
distributor gear with the supplied assembly lube and install the distributor into the
engine. Rotate the engine several revolutions and remove the distributor. The mesh
pattern in the lube should be even and in the middle of the gear. Adjust the slip collar to
obtain the proper mesh, if necessary.
CHECKING THE OIL PUMP TO DISTRIBUTOR SHAFT OVERLAP
After checking the drive gear mesh. it is very important to have the proper overlap
between the the distributor shaft and the oil pump shaft.
The tongue of the distributor shaft should sit into the oil pump shaft groove by a
minimum of 1/4”. Check this measurement according to the procedure below:
1. Measure the distance between the base of the slip collar and the tip of the distributor
shaft.
2. Using a straight edge, measure the distance from the intake manifold distributor flange
to the top of the oil pump intermediate shaft.
3. Subtract the measurement from Step 1 from the measurement taken in Step 2. This
difference is the overlap. If there is too much, or not enough clearance, a shorter or
longer oil pump drive shaft will be required.
4. Lightly tighten the hold down clamp so that the distributor can still be turned to
determine final setting when checking the timing.
5. Re-attach the distributor cap. Make sure the rotor is still pointing to #1.
6. Install your spark plug and coil wires and connect the distributor to the wiring harness.