Fitting an engine

slangley · 05 November 2003, 10:54

Hi All,

I will very soon be fitting a different engine on my 4m Avon Searider. The current one that has just been traded in was a Mercury 50HP manual tilt-trim. The new one is a Suzuki DT55 power tilt-trim.

I am told that the holes from my old engine in the transom will not match up with the holes for my new engine. Since I am completely refurbishing my RIB anyway, I intend to fill all the holes and start again.

My question is, is there a particular position that I need to fix the engine ( i.e. is it dead centre of the transom or slightly offset ).

Any help would be much appreciated.

Steve.

Jono Garton · 05 November 2003, 11:14

it is differnt for evry hull, in the searider manual there will be an offset table.

At a guess it will be 1/2" starboard

thewavehumper · 05 November 2003, 12:03

I now that David Manning did a very good job of changing his Outboard on his sea rider and I believe he took some pictures of it and posted them on the gallery pages. i fancy it was about two years ago, he might be willing to give you some advice.

Diesel · 15 November 2003, 20:57

I would put it about half an inch to three quaters of an inch off set to the right.
Measure the transom from chine to chine and get the centre line of the transom, then measure the offset.
Make sure you get the height right as well, The Cavitation plate (the one above the prop) should be in line or just below the bottom of the hull.

Then before you drill the transom check your measurements again!!.

You can buy transom drilling templates but you might get one with you engine as its brand new.