If the shaft is a 1” straight shaft (pre 2000), the key is square and not 
tapered.  Tapered shafts in later years have a Woodruff key which is crescent 
shaped.
A liberal application of PBlaster, left to sit overnight should do the trick.  
The issue is the key is made from mild hardened steel and is prone to rust.
Chuck Gilchrest
Former Edson employee 

Sent from my iPhone

> On Apr 7, 2020, at 6:28 PM, John Irvin via CnC-List <[email protected]> 
> wrote:
> 
>  It is a tapered key.
> 
> Sent from my iPhone
> 
>>> On Apr 7, 2020, at 6:22 PM, John Conklin via CnC-List 
>>> <[email protected]> wrote:
>>> 
>> 
>> Hi,
>> Silly question here but doing some Maintenance on the crunchy  AutoHelm 
>> ST4000, and plenty of you tube on fixing that belt /drive.. I have an esdon 
>> Pedestal with the control levers (up , Down)  on each side which appear 
>> original for sure.
>> BUT the Silly Edson Wheel! after nut removal,  wheel slides out (snug but 
>> easily) to a certain point just past spokes, and sticks there?  Almost like 
>> its tapered?  You can see in picture here the Keyway ? 
>> https://www.dropbox.com/s/ust0nvmoxir3yh2/wheel2.jpg?dl=0
>> Does this key need to be removed/loosened. Its not loose at all. Or do I 
>> need to just put little more lube and little more elbow grease? I don’t want 
>> to damage threads , or wheel for sure!
>> Need to fix this for some Solo sailing on Halcyon this week, at least that’s 
>> my excuse. We are allowed to sail and I intend to do so,with or without Auto 
>> Pilot. However, Otto driving into the wind would be nice, as it was blowing 
>> 25+ yesterday ! 😊
>>  
>> Thanks!
>>  
>> John Conklin
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