Thanks to all - a small "wheel puller" plate with the right bolts let us get the coupler off the shaft, much like several helpful suggesions. REALLY GLAD I did this, pulled off the 34 yr old aging stiff packing gland hose and found it just barely covered a small hole in the boat - unusually poor fiberglass work around the stern tube plus (I'd guess) the edge of an old clamp chipped through a small spot at the forward end of the stern tube - hard to see, but a hole in the boat. Epoxy and glass work fixed it. Reassembly delayed to let it cure, but whew....
Nate "Sarah Jean" 1980 30-1 Siskiwit Bay, Lake Superior with very little ice left floating around....... On Fri, May 16, 2014 at 6:36 PM, Peter Fell via CnC-List < [email protected]> wrote: > I’m getting set up to do the same thing and from my investigations and > discussions with local marine mechanics, I’ve determined: > > 1) The coupling would be a tolerance fit. > 2) Cutting the old coupling off is the quickest method .... and you should > do that at the keyway to minimize the potential for scoring the shaft > itself. Otherwise a plate made-up with the same bolt pattern as the > coupling and a rachet socket placed between the plate and the coupling + > bolts through the plate and coupling can be used to press the coupling off. > 3) Regardless of how you take it off, replace the coupling and take the > shaft and new coupling it to a machinist to have a fit-and-face done on it > and the shaft checked for straightness. > 4) Might as well plan on doing the cutlass bearing at the same time. > > An old coupling would not have a tight fit on the shaft and the shaft > torque would be taken up only by the shaft key .... shear that and the > shaft backs out of the stuffing box and then you’d get to test out how good > your bilge pump is. > > Peter Fell > Sidney, BC > C&C 27 MkIII > > > *From:* Dennis C. via CnC-List <[email protected]> > *Sent:* Friday, May 16, 2014 2:01 PM > *To:* Graham Collins <[email protected]> ; [email protected] > *Subject:* Re: Stus-List removing prop shaft coupling - how? > > If all else fails, cut it in half and buy a new one. :) > > Dennis C. > Touché 35-1 #83 > Mandeville, LA > > Sent from my iPhone > > On May 16, 2014, at 3:36 PM, Graham Collins via CnC-List < > [email protected]> wrote: > > I used a 3 arm puller, PB blaster, a blowtorch, and the largest wrench I > could fit on the puller, with a pipe on that as an extension. I had a 12" > adjustable wrench wedged in to keep the shaft from turning (the puller > would have turned with it). The adjustable wrench now has a very > impressive bend to it, and it took a fair bit of heat and force to get > off. Hopefully yours isn't that difficult. And as Mainsail says in his > blog, easiest way is to cut it off... if time is money, go that route. > > Graham Collins > Secret Plans > C&C 35-III #11 > > On 2014-05-16 11:52 AM, Nate Flesness via CnC-List wrote: > > I need to replace the stuffing box hose. Boat (30-1) is on the hard and I > have the new Buck Algonquin hose, new packing, new clamps. Anyone have > advice re removal of the forward prop shaft coupling? It is disconnected > from the transmission and I've pulled the prop shaft aft, so there is some > clearance between the couplings. The pbase website suggests that these > couplings may be press fit (as in machine shop press).... PB blaster > applied, light taps with mallet do nothing so far, considering heating it > with a torch....? > > Nate > "Sarah Jean" > 1980 30-1 > Siskiwit Bay Marine > Lake Superior > (with floating ice chunks mid-May.....!) > > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address:[email protected] > To change your list preferences, including unsubscribing -- go bottom of page > at:http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > [email protected] > To change your list preferences, including unsubscribing -- go bottom of > page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > ------------------------------ > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > [email protected] > To change your list preferences, including unsubscribing -- go bottom of > page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > [email protected] > To change your list preferences, including unsubscribing -- go bottom of > page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > >
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