I've found that the brass bushings in my Speedmaster stingers get sloppy fairly quickly, and even a new replacement bushing will have some play as the brass insert in the stinger wears. The vibration in this area has to be robbing some power, and I'm most concerned with this in my spec powered rigs ( my full "P" boats with healthy big Neu motors most likely shrug this off). Lead-teflon bushings are inexpensive, simple to install, easy to replace, and seem to afford a lower coefficient of kinectic friction than the double brass bushing, at least by hand-twirling the shaft. Shown is a shortened Speedmaster stinger, this should work for other stinger brands , also for struts that use the rotating brass bushing ( I did this to my MC strut as well so I know it works on AQ struts).
Step one : knock out the insert with a drift :
DSC03203.JPG
Step two : press in lead-teflon front (of boat) bushing :
DSC03205.JPG
Step three : use drift to insert to correct depth so the front of the prop shaft rides inside it :
DSC03206.JPG
Step four : press in rear (of boat) bushing as in step two (sorry, picture didn't come out)
Step five : put a little light oil on the shaft , chuck it up in the trusty drill & take it for a spin for a few moments until it spins as smoothly as a presidential candidate's
press secretary
DSC03207.JPG
Keep 'Em Wet, Amigos,
Tony
Step one : knock out the insert with a drift :
DSC03203.JPG
Step two : press in lead-teflon front (of boat) bushing :
DSC03205.JPG
Step three : use drift to insert to correct depth so the front of the prop shaft rides inside it :
DSC03206.JPG
Step four : press in rear (of boat) bushing as in step two (sorry, picture didn't come out)
Step five : put a little light oil on the shaft , chuck it up in the trusty drill & take it for a spin for a few moments until it spins as smoothly as a presidential candidate's
press secretary

DSC03207.JPG
Keep 'Em Wet, Amigos,
Tony

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