Now take the enclosed set screw, and screw it into the newly tapped hole until all end-play is removed from gear shaft, then back-off approximately ¼-1 turn.This grease aids in lubricating gears until engine oil can reach gears and protect them. Now screw coupling in distributor housing (use a little Loc-Tite on coupling), after placing liberal amount of lightweight grease into cavity.Now apply a liberal amount of high temperature grease in the grease grooves of our tach drive gear shaft, then insert shaft in I.D. After assembly is almost complete, inspect brass coupling I.D.At this time you will install Paragon Reproductions new and improved tach drive gear with the brass thrust button. and reassemble distributor in reverse order. Pack liberal amount of silicone grease, or high quality grease, into cavity around the upper bushing and then install felt seal and plastic seal.Clean out all cavities of housing with solvent, and dry.They also provide an excellent way to center the hole in the housing for a setscrew, which eliminates endplay, and hence gear failure. These guide tools are hardened steel and can be used over and over again. Remove drill guide and insert tap guide, using the same procedure.Apply oil to bit and drill hole in the housing. Insert 13/64 drill into guide until it bottoms out against the housing.Do so and tighten down snuggly with 7/8” wrench. Now you are ready to insert the drill guide tool into the coupling threaded hole.Drive upper bushing down until it is 1/2″ from the top of the distributor housing ring in which the plastic seal is pressed. bore for tach driven shaft inside housing. Next, insert tool in upper bushing (long), making sure that the notched end is down, and drive the upper bushing into position, getting notch lined up with I.D.See below for detailed bushing installation guide. and drive in by tapping end of tool with hammer until flush with housing bottom. Insert shafted end of tool in bushing I.D. After removing old, worn bushings, install Paragon’s lower (short) bushing in base of housing with the chamfered end first.The next step entails removal of the upper and lower bushings by either using a small slide hammer, or sawing them in half lengthwise with a hacksaw blade.Now remove the felt washer and the plastic seal from the distributor housing.The distributor housing should now be stripped bare, with the exception of the lead wire, which should be inspected for brittleness and/or bare areas. Remove the 2 screws retaining the vacuum control unit & remove unit. Next remove the small spring clip at the top of the point plate from the groove in the upper distributor bushing & the lead wire from the point assembly.The main distributor shaft can now be removed.Remove the brass coupling which houses the tach driven gear and shim.With a drift punch drive out lower distributor gear split pin.
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