Neil, Matt, Dennis, and Len - thanks for your comments. Really appreciated!
-- Tim Rutherford <tim.rutherford.m...@gmail.com> C&C 36-1 KCB #244 - Chamamé Tampa, FL tim.rutherford.m...@gmail.com On Wed, Nov 28, 2018 at 7:53 PM Dennis C. via CnC-List < cnc-list@cnc-list.com> wrote: > Couple years ago, I removed Touche's strut to straighten it. It was a > straightforward job. I did have to remove the fuel tank for access to the > nuts. > > Upon re-install, I used a cone shaped grinding stone to chamfer the 4 > fastener holes on the underside. This lets the sealant form an o-ring > around the fastener. I think I used 3M 4200 as the sealant. I recall I > used new fasteners with fender washer, washer and nylon lock nuts. > > The joint around the perimeter of the strut base was faired with AwlFair, > sanded and painted. > > The alignment was pretty true before removal so I just re-installed > without any further ado. The lack of vibration after completion indicates > that the job was successful. If there had been any vibration, I would have > done an alignment. > > Dennis C. > Touche' 35-1#83 > Mandevile, LA > > On Nov 28, 2018 9:16 AM, "Tim Rutherford via CnC-List" < > cnc-list@cnc-list.com> wrote: > > Prop shaft strut is weeping around the nuts inside the hull and externally > the fairing shows cracks around the perimeter of the strut base although it > doesn't feel loose. No slop in the Cutlass bearing. She's on the hard for > bottom job and driveline maintenance. I'm interested in your thoughts on > how best to proceed to remedy the strut mount leak and cracks in the > fairing. > > From the few posts I have found here, it seems the struts are aligned and > bedded onto a hard substrate and that the mounting holes were drilled with > a close fit. That said, it seems that to remount the strut all that is > required is to remove the fairing material and then simply remove and > replace, seal, and re-fair. > > My questions are: > 1.) How best to assess whether comprehensive strut alignment check is > necessary i.e., laser, scope, yadda-yadda? I'm thinking that if the shaft > slides easily through the remounted strut and into center of the shaft log > and seal, and visually appears dead on center through all the above, than I > can proceed with the engine alignment. If not what, call a pro? I have more > time than money, so DIY work is preferred. > > 2.) How significant is hull flex on these boats while on the hard? I plan > final engine alignment after launch, but could loading on the yard stands > cause strut alignment to appear skewed? BTW, I'm working with an > independent Yanmar mechanic for the engine mounts and alignment. > > 2.) What material for fairing and sealing the strut bed? What's the method > of application? > > The prop is a folding Martec two-blade RH17DX10P-3 Eliptec with 4" of > clearance to the hull; found the center pin broken on one end. It's back at > Martec for refurb. The motor mounts were DF2205-2 going back with OE Yanmar > mounts. While under way, the vibration caused the sail locker lid to sound > like rubber marbles in a blender at a frequency that was probably 2X prop > speed. It seemed like a lot of vibration but there was no change since I > purchased the boat in June '17, and after about a hundred hours of > motoring. Shaft seal is a PYI PSS that is getting a new maintenance kit, > and of course, the strut a new cutlass bearing. > > Please share your thoughts if you have been through this or something > similar. All help is appreciated. > -- > Tim Rutherford > C&C 36-1 KCB #244 - Chamamé > Tampa, FL > tim.rutherford.m...@gmail.com > 813 748 4888 cel/text > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
