Originally Posted by
av8tor1977
What I often do is make a hole clear through the large diameter part of the prop hub, and then use a Phillips screwdriver through the hole to tighten the prop hub. And yes, knurling the face of the prop mounting surface is almost a must. At this point, you could just glue some # 220 sandpaper to that face to help keep the prop from slipping. That will work too.
I strongly recommend using Loctite both on the threads where you thread the prop hub on the engine, and on the stud you will use to hold the prop on. Loctite is not needed on the prop nut itself, and not desired.
AV8TOR
Good thought on the cross hole like a safety prop hub for tightening the hub to the engine. But sometimes it is nice to be able to keep the hub from turning while you tighten the prop nut. And good you mentioned using a STUD with Loctite for the prop rather than a bolt. Studs are available from auto rebuilding shops. A disc of drywall sanding mesh between the prop and the hub will keep it from slipping. The mesh having grit on both sides negates having to glue it on the hub and makes t easily replaceable. JMTCW.
Sincerely, Richard