ob nut

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Before every run, put the 50/50 mix of 80/90 gear lube / STP oil treatment. When you have the bottom halves apart, drill a hole on the upper mount (where the powerhead contacts the lower). See the pic of the SS motor from K&B. Make large enough to get the mixture in. keep it flowing unti it comes out the bottom holes. I use a Bru Line glue syringe to get the mix into the lower. When done running for the day, shafts come out and are placed in a leak proof container that has the oil mixture in it.