How to measure a transom to select the right engine shaft length

[CJL]

Evening all,

I'm after a bit of advice about correctly measuring a transom as our charity is able to purchase a second hand engine. At the moment I have measured from the centre of the cut down section of the transom (see pic) down to the centre of the planning pad and it measures 500mm (20inch in old money)

Now the engine we are looking to purchase - its a second hand one, comes in two sizes L=508mm X=635mm. I think the one we are looking at is the L version so 508mm.

I have got myself in such a stress worrying about the sizes that I would welcome any advice on this as especially as its not my money and it needs to be 100% right!

Also if the engine is the X version will that be OK? just deeper in the water?

Many thanks,

Chris

[Turbodiesel]

You need the Long shaft version 20", if you go to deep with the XL 25" you will have all sorts of problems, poor performance, extra fuel use, dirty water out the back of the boat due to the extra depth etc

[falcon0310]

very true but if alot cheaped just put on bracket

[CJL]

THANK YOU!

I just wanted to check I wasn't going insane!!

Chris