Reply To: Johnson rd-14 Cowling Screws

[olcah]

After I saw them off I file around the cut end with the file at 45 degrees. Stainless files rather hard but with patience and a good file it can be done. You can also use a grinder, belt sander, or lathe to help. You just want to smooth up the cut end of the thread at about 45 degrees. Get a plain steel 1/4-20 nut to try onto the thread so you don’t force the aluminum threads in the cover. Also if you buy about half of the screws at 1/2 inch long they would be fine. You need the longer 3/4 inch length to go horizontally through the cover sides and locate into the rubber mounts. Actually I have one or two spares 1″ long as they sometimes make it easier to line up into the rubber mounts. It takes some patience to get the covers lined up so the screws go into the rubber mounts but you will see as you go.

These motors are fun to run but really vibrate and I usually have a couple spare screws aboard.