[Rhodes22-list] Motor lift “bearings”?

[Richard Stott]

Does anyone use a 20” long shaft, considered a “Long Shaft” 
Most, including both my motors are 25” shaft. (extra long) 
If there are any Rhodes with 20” motor shafts, I would like to see the motor mount for such. 
Brt to all 
Be safe 
Ric 
sv Dadventure 
HBNY 

Richard Stott, AIA, LEED AP 
www.stottarchitecture.com
Office	631-283-1777
Cell		516-965-3164 





> On Jun 29, 2020, at 1:33 AM, Mary Lou Troy <mtroy at atlanticbb.net> wrote:
> 
> Hi Olivier,
> I'm trying to remember the details of exactly how the mount worked. We didn't pay it much attention though we may have added a stop at the bottom. I know the design kept evolving after we bought the boat in 1998 and as the boat was a 1991, it may have been a design from a previous year.
> 
> I wonder how long that plastic had been fatigued and if that had something to do with your difficulties with the mount?  I don't remember a whole lot of difficulty raising and lowering the motor and I'm not the strongest or most athletic sort. In spite of that, I did most of the raising and lowering. it did take moving close to the mount and raising it hand over hand. I guess it would have been more problematic if we were not always sailing with two people but it almost always went quickly. It did sometime take a nudge on the top of the motor to get it going down.
> 
> Hope you find a quick fix and glad you are getting out a lot.
> 
> Mary Lou
> 
> On 6/28/2020 1:16 PM, Olivier Hecht wrote:
>> Thanks Roger. That is a lot different and looks like an upgrade!  I wish
>> I’d taken more pictures before leaving the boat at the yard again...I can
>> do that the next time I’m there. Basically though, there are four round
>> protrusions on the movable carriage in the mount at the four corners of
>> that carriage. Those are the parts that fit inside the plastic bearings I’m
>> trying to replace. BTW, those protrusions themselves look pretty work
>> themselves so upgrading the carriage might be the best long-term idea.
>> Raising and lowering the motor has always been very tough with this design.
>> One of the many reasons I’m so hesitant to use the motor! Olivier
>> 
>> On Sun, Jun 28, 2020 at 11:05 AM ROGER PIHLAJA <roger_pihlaja at msn.com>
>> wrote:
>> 
>>> Olivier,
>>> 
>>> I’ve attached a close-up photo of the linear bearing on my GBI motor
>>> mount.  Note that it doesn’t seem at all like yours.  My linear bearings
>>> are T-shaped pieces of glass-filled PTFE that ride in 6061 T6 Aluminum
>>> C-Channels.  This design of linear bearing has a huge bearing surface area,
>>> so the wear rate is minimal.  The design is self flushing to keep abrasive
>>> debris out of the bearing.  Plus, the bearings can be easily swapped out
>>> W/O disassembling the whole motor mount when replacement is required after
>>> many, many service hours.  I don’t know when GBI changed the design; but,
>>> it might be helpful if you provided a few more photos of your motor mount.
>>> 
>>> Also, it might be helpful if you make a few measurements of the
>>> ID/OD/Length of your bearings.  They might be standard plastic pipe sizes
>>> and easily sourced from Grainger, McMaster-Carr, or United States Plastics
>>> Corp.
>>> 
>>> Roger Pihlaja
>>> S/V Dynamic Equilibrium
>>> 
>>> [cid:image003.jpg at 01D64D3C.17C68130]
>>> 
>>> Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for
>>> Windows 10
>>> 
>>> From: Olivier Hecht<mailto:oehecht at gmail.com>
>>> Sent: Saturday, June 27, 2020 9:01 PM
>>> To: The Rhodes 22 Email List<mailto:rhodes22-list at rhodes22.org>
>>> Subject: [Rhodes22-list] Motor lift “bearings”?
>>> 
>>> Did 50 miles on Fretless from 3 pm Friday to 6 pm today, with a nice break
>>> at a marina from 7 pm to 8 am!
>>> 
>>> An unpleasant part of the experience was dealing with the motor lift
>>> getting crooked in the tracks because two of the four plastic “bearings”
>>> the mount rides on were worn out/missing. See pics. I sent a note to Stan
>>> but also wanted to ask here if anyone has replaced these. Any tips on
>>> replacing them without dismounting the motor if that’s possible?  The side
>>> tracks appear to come off and I was able to retrieve one of the bearings
>>> that was loose in the track after parking the  it on its trailer. Getting
>>> new ones in will probably be harder though...
>>> 
>>> Thanks. Olivier
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> 
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