The C-Brats Forum Index
HomeForumsMy TopicsCalendarEvent SignupsMemberlistOur C-DorysThe Brat MapPhotos

Can I put a Honda 90 extra long shaft on my 22 cruiser.

 
Post new topic   Reply to topic    The C-Brats Forum Index -> Outboards and Systems
View previous topic :: View next topic  
Author Message
easy does it



Joined: 08 Sep 2017
Posts: 116
City/Region: Redmond
State or Province: OR
C-Dory Year: 2004
C-Dory Model: 22 Cruiser
Vessel Name: Pura Vida
Photos: Easy Does It
PostPosted: Tue Apr 12, 2022 7:08 am    Post subject: Can I put a Honda 90 extra long shaft on my 22 cruiser. Reply with quote

It is a good deal , only 5k but I can imagine bumping on rocks on lake Powell. I have a Honda 50 original equipment…(big gasp) ha. Anybody got any motors for sale? Cheers
Back to top
View user's profile Send private message Send e-mail
jkidd



Joined: 23 Oct 2006
Posts: 1609
City/Region: Northern, Utah
State or Province: UT
C-Dory Year: 2007
C-Dory Model: 22 Cruiser
Vessel Name: Voyager
Photos: Voyager (JK)
PostPosted: Tue Apr 12, 2022 8:55 am    Post subject: Reply with quote

If you mount a jack plate so the motor can sit above the transom then it might work. The motor is suppose to be mounted so the anti cavitation plate is 1" above the bottom of the boat. As heavy as the motor will be you could get away with dead even. I wouldn't do it unless you can keep the cavitation plate at the proper height.
_________________
Jody Kidd
KE7WNG
Northern, Utah

Back to top
View user's profile Send private message Send e-mail
thataway



Joined: 02 Nov 2003
Posts: 20778
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Tue Apr 12, 2022 10:05 am    Post subject: Reply with quote

There has been a boat for sale in San Diego with a longer shaft. I feel that it is potentially asking for problems down the line with the transom. You are increasing the lever force on the transom

You don’t want the longer shaft in the water,. Performance including steering will suffer. There can be problems with the boat on a plane.

_________________
Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL
Back to top
View user's profile Send private message Send e-mail
kennharriet



Joined: 22 Jan 2009
Posts: 510
City/Region: Grangeville
State or Province: ID
C-Dory Year: 1999
C-Dory Model: 22 Cruiser
Vessel Name: Lochsa
Photos: Lochsa
PostPosted: Tue Apr 12, 2022 12:47 pm    Post subject: Reply with quote

I have a new Honda 90 XLRT 25” long shaft mounted on Lochsa. Although it was not intentional, I ended up with a long shaft. After talking to some marine fabricators and friend who built his own boat for rough water Alaska use, they pointed out some advantages of the long shaft. I had the aluminum transform bracket pictured fabricated that puts the cavitation plate at the correct height. I believe the bracket actually strengthens the Cdory transom by better distributing the weight. It is made of 1/4” plate on both sides of transom and a larger footprint than the Honda bolt pattern and motor bracket. With the motor in the up locked position there in more motor weight distributed forward when towing. It does make it more challenging to change a prop on the water from the swim step however. I am not a marine engineer, so take my experience with a grain of salt. I am not unhappy with the outcome.

[im http://www.c-brats.com/modules.php?full=1&set_albumName=Lochsa&id=4A95E641_79F4_4666_8F17_7CC8415CE858&op=modload&name=gallery&file=index&include=view_photo.php g]

[/img]
Back to top
View user's profile Send private message
kennharriet



Joined: 22 Jan 2009
Posts: 510
City/Region: Grangeville
State or Province: ID
C-Dory Year: 1999
C-Dory Model: 22 Cruiser
Vessel Name: Lochsa
Photos: Lochsa
PostPosted: Tue Apr 12, 2022 12:50 pm    Post subject: Reply with quote

[im http://www.c-brats.com/modules.php?set_albumName=Lochsa&id=5404E6D1_813F_47B1_81D0_443F2ACA716E&op=modload&name=gallery&file=index&include=view_photo.php g][/img]
Back to top
View user's profile Send private message
thataway



Joined: 02 Nov 2003
Posts: 20778
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Tue Apr 12, 2022 4:02 pm    Post subject: Reply with quote

I agree that sandwiching the transom, with plate on both sides, you do distribute the force much better. It was just bolts and washers which cause a potential issue.

In a least one C Dory25 the splash well laminate was about 1/2" off the transom laminate--a void of 1/2"--and the 1/4" thick splash well failed--first with a large fender washer, then with a bar across the upper bolt battery. This was solved by boring out the splash well to 2", and then working 6oz glass circles about 3 1/2" in diameter soaked in epoxy resin, thru the 2" hole and taking the load of the splash well. Finally the cut out part was delaminated with taper, and there is solid glass from the inner splash well to the transom, and then the area in the transom, is filled with thickened epoxy.
Back to top
View user's profile Send private message Send e-mail
digger



Joined: 02 Nov 2003
Posts: 496
City/Region: Spokane
State or Province: WA
C-Dory Year: 1993
C-Dory Model: 22 Angler
Vessel Name: C-Sik
Photos: Snoopy-C
PostPosted: Tue Apr 12, 2022 5:40 pm    Post subject: Reply with quote

I wouldn’t do it. I knew of a Hewescraft that was fitted with an extra long shaft Suzuki on a jackplate to put the cavitation plate in the correct area. Even with that, the boat porpoised due to the different moment arm of the xtra long shaft motor. The boat was refitted with an etec of the correct length and boat handling restored. Plus, the transom height with the jackplate is not fully supported across the new elevation of the bracket. Perhaps if the full width of the plate went across the entire transom width the results would be better.
Back to top
View user's profile Send private message Send e-mail Yahoo Messenger
srbaum



Joined: 30 Aug 2010
Posts: 875
City/Region: Portsmouth
State or Province: VA
C-Dory Year: 2007
C-Dory Model: 26 Venture
Vessel Name: Osprey
Photos: Osprey
PostPosted: Tue Apr 12, 2022 6:22 pm    Post subject: Reply with quote

EasyDoesIt,
I would recommend not modifying the transom for the extra long shaft, as the transom would then be compromised with a lever arm, well above the designed height.
Can you provide a photo of the engine? Maybe a different approach, is to buy the outboard and have the extended spacer removed, which may include replacing the drive shaft, shift shaft and water tube.

_________________
Steve Baum
Homeport of Portsmouth, VA
OSPREY (Ex Mister Sea) 2000 22 C-Dory 2010 - Sold 3/19
OSPREY (Ex ADITI) 2007 26 Cape Cruiser 2018
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    The C-Brats Forum Index -> Outboards and Systems All times are GMT - 5 Hours
Page 1 of 1

 
     Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum



Page generation time: 0.0922s (PHP: 81% - SQL: 19%) - SQL queries: 26 - GZIP disabled - Debug on