Ty alternate applications of hear and cold, using a prop puller.
From: Bill Connon <billcon...@navigue.com>
To: cnc-list@cnc-list.com
Sent: Monday, November 11, 2013 2:01:04 PM
Subject: Re: Stus-List further questions about replacing the bellows on a PYI
shaft seal
Eric Frank wrote:
> Thanks to the list's advice last week about getting the bolts loose on the
> universal to shaft coupling, I got them all out with an impact wrench.
> Worked beautifully. But now I am stuck again getting the shaft coupling off
> the prop shaft. Removed the bolts that grip the coupling to the shaft and
> also a square-headed bolt in the coupling that probably fits into a keyway in
> the shaft, but I can't break the shaft loose from the coupling. I tried
> holding the coupling from turning with a pipe wrench and trying to turn the
> prop shaft (by gripping the sacrificial zinc on the shaft with a big vice
> grips so as not to damage the shaft itself), but it didn't budge. And of
> course I don't want to damage anything.
>
> One possibility would be to slide the shaft as far aft as possible (since it
> is disconnected from the universal and the SS PYI piece (that acts as the
> bearing up against the bellows) that is on the shaft slides forward on the
> shaft) and then get a small wheel puller on the coupling so it would push the
> shaft out of the coupling. I have no experience with wheel pullers but it
> seems that it might work.
>
> But I would really value input from the list about how to proceed.
> Apparently the salt water leaking around the bellows this summer rusted the
> coupler sufficiently that it is really stuck.
>
> Eric Frank
> Cat's Paw
> C&C 35 Mk II
> Mattapoisett, MA
>
>
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Eric,
I recommend Jims' suggestion of using longer bolts and a socket. It
worked for me. Make sure that you tighten the nuts evenly so that the
force on the coupling halves stays in a straight line.
Bill
Caprice 1
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