Finishing Off The Bottom End

Oil Pump

The next item on the installation list is the oil pump.  I rebuilt the pump many weeks ago now, and it has been sitting on the bench wrapped in plastic waiting for the engine to be ready for it.

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I couldn’t find the original nuts, but found a couple of new nuts and spring washers in my stash.  I gave the gasket a thin coat of my favourite sealant…Peramtex Aviation Form-a-Gasket (everytime I smell this stuff it takes me back to building engines with my oldest brother 30 years ago)…before dropping the pump on the studs.  Did the bolts up nice and tight and the jobs done.

Next is the oil pickup including it’s felt washer.  This item simply slips on and is retained with a split pin.  I wonder how long this felt washer will last, keeping in mind that there was nothing there when I disassembled it.

For giggles I added my signature to the cover plate of the pump….not sure how long it will last.

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Next item is the windage tray.  This is a pretty straight forward install.  I used new spring washers just to make sure it doesn’t come loose.

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It is now ready to close it all up with the sump. 🙂

Distributor

The Pertronix items arrived, so its time to finish assembling the distributor.  There is an additional adapter plate included in the box which is required for this distributor.  I installed this first.

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Next I needed to open up the rubber grommet to accommodate the two wires from the Ignitor III (it originally only had one wire coming through it)

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After this, I simply screwed on the Ignitor unit and fed the wires through the grommet.

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The final step was the drive gear.  Originally it had a steel pin which was peened over to retain it in place.  Later GM distributors use a spring pin to retain the drive gear, which is a better (& easier) solution.  The hole diameter is 3/16″ which meant that a 3/16″ x 1″ long spring pin was a perfect fit.

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I thought it would be a good idea to clean up the distributor cap and use it cover everything to keep it clean.  Closer inspection revealed a possible reason why the engine wasn’t running so well.  There should be a small carbon(?) button in the centre of the cap, however it appears to be missing.

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It is not worth taking any chances, so I have ordered a new cap and rotor.

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