(Picture) mounting outboard on transom

ollyit · 20 September 2004, 15:34

In the next week or so, any key pointers anyone would like to chuck in?

SDGANDER · 20 September 2004, 15:41

The prop goes outside the boat and should be at the bottom end!

ollyit · 20 September 2004, 15:43

nice mate, cheers I was gona have the prop in the inside

ribraff · 20 September 2004, 15:54

Make sure you use the middle holes in the saddle and be prepared to move the engine to get the best and safest ride with this combination, i had the same set up on a 4m sea-rider with a mariner 60 and it was very easy to get out of shape and in rough seas was very dangerous, a plastic 25LT water tank in the bow helped the handling no end. A very fast rib for it's size!

Manos · 20 September 2004, 16:14

don't forget to drill the holes

ollyit · 20 September 2004, 16:21

thanks manos, always good to get a opinion - especially seeing as you had a similar/same setup - how was it in rough seas then mate, youve got me a little concerned now

ollyit · 20 September 2004, 16:35

Quote:

Originally Posted by ribraff

Make sure you use the middle holes in the saddle and be prepared to move the engine to get the best and safest ride with this combination,

With regard to the "saddle" which bit is that exactly, sorry if im being thick here !

- with the moving the engine about I think im going to be restricted arnt I if i drill holes and put the bolts through I cant move it port or starboard can i?, I'm sure i read something ages ago on here about having it mounted 1/2" to starboard to allow for prop direction, or shall I disregard that and have it bang on in the centre seeing as I have such a small craft -

Mnay thanks in advance

ribraff · 20 September 2004, 17:19

...I had mine at 1" offset but it made little difference really, the most significant difference was the 25LT in the bow, this helped to tame it down quite a bit.
In big seas and big chop the boat tended to lose grip whilst chine walking and fell onto it's portside unexpectedly, pretty scary!!!

I call the part of the engine where the bolts go through the saddle, it's probably incorrect terminology and someone will probably be unable to resist the urge to jump on this one!

Seamonstie · 20 September 2004, 19:42

About to mount transom..............................

Make sure you have a good hand hold, she can give quite a good ride!!!

ollyit · 20 September 2004, 20:01

cheers 4 all ur replies so far

Erin · 20 September 2004, 20:12

I think mine is mounted 1/2" to starboard to counter prop torque. No idea if it makes any difference, but that's what Prosport do! The idea of mounting it using the middle holes is sound. This means you can move the engine up or down by one hole on it's saddle/bracket without having to drill new holes thru the transom. The lower bolts normally fix though a long oval slot so you just loosen them and slide the engine up or down.

slimtim · 20 September 2004, 20:26

Does the "saddle" thingy not need to rest on top of the transom? I guess you would have to drill the holes for the top holes on the saddle, then you could move it up and down ok. If you drill for the middle holes then you will only be able to move the motor up. I would guess having the motor supported on the bolts alone is a bad idea and at least some of the mass of the engine should be taken by resting the saddle on the top of the transom?

I may be being thick. Apologies if this is the case...feel free to slap me

.

Tim

Erin · 20 September 2004, 21:35

Nope... no slap required.

I didn't really think it through fully, so I think you're right in that the top of the saddle should rest on the transom.

I guess you either fix an extra bit on top of the transom if you mount the motor higher, or cut a bit out if you want to lower it. Never seen it done though... just theory really.

Nick Hearne · 21 September 2004, 08:03

I think you both kneed a slap!!

The engine isn't going any there with 4 big bolts holding it on!
Now saddle up & move off!

Nick

ribraff · 21 September 2004, 08:52

The engine does not need to be mounted with the top of the saddle resting on the boat, this will give you more vibration through the engine, the idea is to mount the cavitation plate in relation to the keel.
The best way is to start with it running parralel and move it around from there. If you move it up you will gain a higher top speed but as a result it will start to lose grip in the turns, i have never mounted an engine with the cavitation plate below the keel line. I seem to remember having the engine 1" above on my Sea-rider.
I hope this helps and please bear in mind that this is all IMHO

ollyit · 21 September 2004, 10:01

I'll bear this in mind, thanks all

Rene · 21 September 2004, 11:08

Very sound advise from Ribraff.

I have my engine cavitation plate mounted about 1/2 inch above keel line.

I can make very thight turns when I trim the engine in all the way, but if I trim (not very much) I start to loose "grip" and have to slow down to get it going again

Rene