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R3M Compression Collars

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Jon Lewis
Member
Username: spinning_props

Post Number: 17
Registered: 05-2007
Posted on Monday, July 11, 2011 - 02:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Has anypone tried making their own compression collars for an R3M? By 'compression collars' I mean the newer type of steel collar that sits on the crankshft inside an oil seal (not the steel - phosphor bronze assembly typical of older units). With Fairways now in liquidation and Marlex not answering e-mails, I thought I might have a go at making my own. The machining marks on the collars I have suggest they are drilled / reamed (or bored) internnally and cylindrically ground externally. I'm guess they are also case hardened but can't be sure. Before I embark on my 'adventure', I'm keen to know if anyone has tried making these collars before. Your thoughts please!....
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TonyH
New member
Username: tony4119

Post Number: 2
Registered: 06-2011
Posted on Tuesday, July 12, 2011 - 04:53 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have reconditioned a few of them. Its just machinable steel not hardened at all. Just turned them out with a round nose tool.
Tony.
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Jon Lewis
Member
Username: spinning_props

Post Number: 19
Registered: 05-2007
Posted on Tuesday, July 12, 2011 - 05:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thanks Tony.

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