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Catalina/Capri 25/250 Sailor's Forums

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Outboard Bracket

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OLarryR
Master Marine Consultant

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USA
3448 Posts

Response Posted - 04/24/2012 : 03:21:04

I used a piece of starboard outside the transom. I had purchased the strengthening brackets to fit on the inside of the transom (in the quarterberth) but for some reason they did not fit. Rather than drill new holes thru the thick stainless steel channels, I decided not to use them. The new outdoor mount was installed soon after I bought my Cat 25 in Fall 2005. I was still using my old outboard back then but soon after, JAN 2006, installed a new Honda 9.9hp.

Edited by - on

pfduffy
Captain

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USA
317 Posts

Response Posted - 04/24/2012 : 05:50:14

I can't wait to get mine installed. For the steel L-brackets that CD recommends inside, I am simply going to disassemble the old mount and use the brackets that were previously against the outside of the hull.

Edited by - on

szymek
Navigator

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Canada
209 Posts

Response Posted - 04/24/2012 : 06:01:50

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by pfduffy
 I can't wait to get mine installed. For the steel L-brackets that CD recommends inside, I am simply going to disassemble the old mount and use the brackets that were previously against the outside of the hull.
<hr height="1" noshade id="quote"></blockquote id="quote">

Oh my goodness! how come I never thought of that?!?! I picked up the SS L bracket just 45 mins ago!!

I picked it up from wholesaler, so they didn't have proper bits to drill it, so I just have to go to my buddies machine shop to get it drilled.

But I should of thought of re-using the plates from the old mount! Damn....

Edited by - on

islander
Master Marine Consultant

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USA
4021 Posts

Response Posted - 04/24/2012 : 15:20:39

Larry I know many here have put a plastic plate on the outside as a support but If you think of the forces being applied It really does nothing much to spread the load. The weight of the engine is trying to pull those bolts, Mostly the top two through the transom and without the brackets or a plate on the inside the only thing stopping those bolts from ripping through is those little washers. The brackets on the inside will distribute that force over a larger area. Think of a toggle bolt in wallboard, Backing boards go on the inside.

Edited by - islander on 04/24/2012 15:21:29

dmpilc
Master Marine Consultant

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USA
4593 Posts

Response Posted - 04/24/2012 : 17:36:53

The only real purpose of the backing plate on the outside of the transom is to put a little more distance between the motor mount handle and the rubrail when the motor is raised.

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szymek
Navigator

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Canada
209 Posts

Response Posted - 04/24/2012 : 19:03:18

I'm not expert here, but I've done a lot of homework on this in the last week.

As David and Scott have mentioned - starboard on the outside of the transom does not really add much value unless you are trying to move the bracket away from the transom. That is exactly what I would have to do with the Panther bracket that I purchased originally.

Today right after work, even though it was late, I went to the marina to take a look at the old bracket and to see whether I can reuse the rails as backing plates. I figured it will be much easier than drilling through SS.

I took the old bracket apart within 1 min and I had my new backing plates!!!!!

New bracket is already mounted!! Tomorrow I'm going back to put the engine and I'm ready for launch this Friday am! Wow - it was close, but bracket came on time and I get everything done.

I don't think I will have much use for the SS rails - if any Catalina owners are in my neck of woods and want to take a stab at drilling them, let me know and you can have it.

I will take few pics and I'll share with you guys tomorrow.

Edited by - szymek on 04/24/2012 19:06:48

Prospector
Master Marine Consultant

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Canada
3159 Posts

Response Posted - 04/24/2012 : 20:22:02

How badly bent were the side sliders on your old mount? If the 2 side pieces with the detents were in OK shape I might could use them.

Edited by - on

Boomeroo
Navigator

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Australia
129 Posts

Response Posted - 04/25/2012 : 04:20:07

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by dmpilc
 The only real purpose of the backing plate on the outside of the transom is to put a little more distance between the motor mount handle and the rubrail when the motor is raised.
<hr height="1" noshade id="quote"></blockquote id="quote">
Hi, When I purchased my boat 3 years back I had to motor sail down the coast with a 4 ft swell , I was watching the motor as we surged down waves . I WAS SUPRISED BY THE amount of flex in the stern f.glass around the mount . the first job was to fit a 1/2 section of starboard on the outside . Fixed the flex problem ..
Then fitted rails to give greater depth to motor in larger waves and healed

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Stinkpotter
Master Marine Consultant

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Djibouti
9076 Posts

Response Posted - 04/25/2012 : 06:39:50

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by islander
 Larry I know many here have put a plastic plate on the outside as a support but If you think of the forces being applied It really does nothing much to spread the load.<hr height="1" noshade id="quote"></blockquote id="quote">You're right that the upper bolts are being pulled outward, and should be backed inside. But roughly the same force is being applied at the bottom edge of the two rails of the bracket, which are being pushed inward against the fiberglass. (I'd guess that the inward force at the bottom is stronger, although the transom is also stronger than the liner.) The exterior plate spreads the load at the bottom. For that reason, I extended my Starboard plate further down below the bracket, to the point where I had to take off the lower outside corner to fit the transom. (This was to carry a 108# high-thrust Honda, which had some serious push to go along with its serious weight.)

Edited by - Stinkpotter on 04/25/2012 06:41:48

dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 04/25/2012 : 07:24:44

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Boomeroo

<hr height="1" noshade id="quote"></blockquote id="quote">

Boomeroo,

Why does it appear your hull is sitting about foot higher than a C25? Bilge keel at low tide maybe?

Edited by - on

GaryB
Master Marine Consultant

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USA
4303 Posts

Response Posted - 04/25/2012 : 18:11:52

Probably doesn't have all the c$%p the rest of us have onboard.

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szymek
Navigator

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Canada
209 Posts

Response Posted - 04/25/2012 : 19:28:48

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Prospector
 How badly bent were the side sliders on your old mount? If the 2 side pieces with the detents were in OK shape I might could use them.
<hr height="1" noshade id="quote"></blockquote id="quote">

I was planning on giving up the L shape rails for backing plates and I was going to keep the old mount as a spare. But to be honest, I'm sure it would be sitting around for a very long time. So if you have immediate use for the sliders, you can have them. I can take a pick of it over the weekend and I'll send it to you. Oh... they're in really good shape.

Anyways... Got the motor up today - sorry no pics, by the time I got the motor up, helped the fellow next to me, it was already dark.

Question: This bracket seems really stiff. Or maybe I'm just used to the old one which was single spring and I guess worn out. But seems that I need to give it quite a bit of push to lock it in lowest position, and quite a bit of yank to get it out. Is this normal??

Edited by - on

OLarryR
Master Marine Consultant

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USA
3448 Posts

Response Posted - 04/25/2012 : 21:10:45

Mine was so tight to begin with that I had to stand on the outboard to get it into the lowest locking position. But after leaving it in the lowest position dockside for a week, that then made it easier to lower and raise it. But even to this day, I have to momentarily push down on the handle with my foot to unlock the outboard from the lowest locking position.

Edited by - on

Boomeroo
Navigator

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Australia
129 Posts

Response Posted - 04/25/2012 : 21:21:00

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by dlucierWhy does it appear your hull is sitting about foot higher than a C25? Bilge keel at low tide maybe?
<hr height="1" noshade id="quote"></blockquote id="quote">
Hi Don . 3 reasons it appears high ou of water.
1 A wave is just passing by. 6 in
2 The swing Keel is down 3 in
3 She is on a mooring with some downward load 1 in
I think C 25s usually have an inch or two of the skeg showing
However she does sit a bit nose down . My weight on stern ladder drains the cockpit when I climb aboard on the mooring.

On the subject of the motor mount ,the Port mounting makes getting a full internal backing plate ( preferred)very difficult (access from s'board berth ) So I have 2 large vertical plates inside . The full height external plastic plate spreads the load the full ht of the stern .
The motor is on sailtrack slides and when motor sailing is easily adjusted for ht via a small tackle on the stern rail..

Graeme ..
Boomeroo,

Edited by - on

islander
Master Marine Consultant

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USA
4021 Posts

Response Posted - 04/26/2012 : 13:22:32

Mounted on sailtrack slides? No kidding, Now that's different.Gee I hope there are some stops at the bottom of the tracks...

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