Chris newton Posted December 9, 2019 Report Share Posted December 9, 2019 Looking for a spinner back plate for 201J . Or if it can be repaired info on who does them Quote Link to comment Share on other sites More sharing options...
carusoam Posted December 10, 2019 Report Share Posted December 10, 2019 Chris there are a few conversations regarding spinners lately... https://mooneyspace.com/search/?q=Spinner @Cody Stallings do you deal in spinners as well? Best regards, -a- Quote Link to comment Share on other sites More sharing options...
Cody Stallings Posted December 10, 2019 Report Share Posted December 10, 2019 Not a lot, but I have been know you dabble a bit. 1 Quote Link to comment Share on other sites More sharing options...
FloridaMan Posted December 11, 2019 Report Share Posted December 11, 2019 Is this the bulkhead that connects the spinner to the prop? I assume it’s a McCauley if it’s an m20j. I have a Hartzell on my F with the LoPresti cowl, so it’s an M20j spinner for a Hartzell prop (some early Js had Q-tip Hartzell props). Here are my experiences and understanding from my Hartzell prop. If you have the bulkhead that attaches to the flywheel, it should have a doubler for every two bolts. If the spinner is not very tight against the hub, it will crack the bulkhead. There are harmonics between the prop and the engine and think of that bulkhead/backplate like a rubber bellow that flexes constantly. If the spinner isn’t tight, it’ll flex more and tear. After mine failed, I first replaced it with a welded and yellow tagged one from a repair station for $600. It failed within 10 hours. I then found a used spinner assembly for $400-$500 and had that installed. It failed in 100-200 hours. I finally bit the bullet and bought a spinner and backplate that attached to the hub from Hartzell, not Mooney, for around $2000 and it hasn’t given any trouble. However, cooling is not as good as I suspect the bulkhead that connected to the flywheel limited airflow from exiting through the front of the cowling, which likely reduced cooling drag, improved cooling and performance. I believe that the Mooney spinner design was one of the minimally incremental things that aided Mooney performance, but with a cost. Quote Link to comment Share on other sites More sharing options...
Chris newton Posted December 16, 2019 Author Report Share Posted December 16, 2019 Yes it’s a McCauley . Yes bolts from flywheel to spinner.It cracked because somebody drilled a hole in it they chamfered the hole making it weak Quote Link to comment Share on other sites More sharing options...
Guest Posted December 16, 2019 Report Share Posted December 16, 2019 I don’t know if these guys can help you? https://www.spinner-repairs.com/bulkhead.html Clarence Quote Link to comment Share on other sites More sharing options...
FloridaMan Posted December 26, 2019 Report Share Posted December 26, 2019 On 12/15/2019 at 10:06 PM, Chris newton said: Yes it’s a McCauley . Yes bolts from flywheel to spinner.It cracked because somebody drilled a hole in it they chamfered the hole making it weak I would not do a repair after my experiences. Check with @acpartswhse Quote Link to comment Share on other sites More sharing options...
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