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Yokes

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(@willie-spence)
Posts: 26
Eminent Member
Topic starter
 

I will be removing the control yoke for the shaft to refurbish them.  I assume they are magnesium having read the older posts.  Any suggestions from those of you who have done the same?  How do you remove them?  What is used to clean and polish them?  Any particular treatment yields the best look for them?  Paint, polish, wrap...?

Thanks,

Willie Spence

 
Posted : 25/11/2020 5:47 pm
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Posts: 300
Reputable Member
 

Willie, what dash Stinson do you have?  The dash 3 yoke is attached to the shaft with a steel pin which goes cross ways thru the yoke and shaft.  I believe earlier dash airplanes had a nut (hidden under the plastic nameplate) which secured the yoke to the shaft.  I had my yokes powder-coated, but you could paint them.  Yes, I think they're magnesium.

 
Posted : 26/11/2020 2:05 am
Will Ware (Webmaster ISC)
(@stinsono)
Posts: 399
Honorable Member Admin
 

My dash 1 yokes were not easy to get off the shaft, but some heat and nudging helps. The shaft is threaded at the yoke end and there is a nut to help secure the yoke, however the yoke also has a key way that is aligned with a key on the shaft. See the pic attached. 

I suggest removing the name plate on the front of the yoke to gain access to the nut, remove the nut, then use some heat on the around the yoke and use a plastic mallet to drive the shaft/key out of the yoke.

 

 
Posted : 26/11/2020 7:13 am
(@willie-spence)
Posts: 26
Eminent Member
Topic starter
 

It is a -3. I see the pin. Do I need to heat it, is it pressed on? Thanks, Willie. 

 
Posted : 26/11/2020 3:27 pm
(@906co470)
Posts: 37
Eminent Member
 

@willie-spence  The pin for the yokes is a press fit. I recommend pulling the shaft from the u-joint under the panel so you can place the yoke on a suitable steady surface to drive the pin out. A proper sized drift/ punch and a hammer should make short work of it. I tried driving the pin out with the shaft still in the plane but decided that was not a good idea. I was shaking/ vibrating the instruments so bad I feared damage. 

 
Posted : 26/11/2020 4:25 pm
(@willie-spence)
Posts: 26
Eminent Member
Topic starter
 

@906co470

thanks Eddie, excellent advice. 

 
Posted : 26/11/2020 5:56 pm
Dave Molnar
Posts: 49
Eminent Member
 

Then just bring them to me, Willie.  I’ll prep, epoxy coat, base, then clear them!

cheers

dave

 
Posted : 30/11/2020 11:26 am
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