ORIGINAL: jstyle13
Just got in the mail my Master Airscrew 12x6 prop to go on my Saito 56. I was under the impression the prop would just slide onto the threaded prop shaft and then you would snug it down with the plate/nut combo. However in order for me to get the prop on my Saito, I have to hold the hub with pliers and screw/thread the prop onto the shaft because apparently the hole on the prop is a tad smaller than the prop shaft. Is that normal? Do I need to drill out the prop hole so that it slides down on the prop shaft? I guess I assumed the pre-drilled prop hole would be slightly bigger than the prop shaft.
Thanks guys!
Josh
Props may well have to be drilled out to fit many different engine crankshaft sizes that are out there. I either DRILL or ream whichever is easier at the time when I have the need. It is really not a difficult item. Another tip is that when one drills a tad much or one is using a prop larger than normal, there is an easy fix. The super types may groan however having doing this prop thing since the mid '40s I reserve a right to do whatever works for me at the time a need is there. That is when the prop hole is too big. I simply wrap the shaft with masking tape until a tight fit is made. I have done it many times and it works for me. Just don't do it so the tape bundles up between the prop and the thrust washer.
I find it better to drill or ream properly, however when a need is there I satisfy the need.
The model airplane supplier is not going to custom cut a prop for each size engine. If he should, one would need a LOT more money to obtain such. Believe it or not, there are things that one has to do for one's self. Try it, and I'm betting you will like it.
