2.5 di starter motor rusty and just clicking

[Mattyone]

My 2.5 di starter motor was just spinning when trying to start so I took it off, cogg and spindel looked very rusty (boat engine lots of salt air) sprayed with wd40 and left for half hour, re-installed and then all I got was just clicking.
I took it off again thinking I would take it apart and give it a good clean, when I got to the part in the photo a bearing fell out, anyone know the best step fwd can this be fixed and not sure how to dismantle part in photo!!

Thank you

[In-transit]

I don't know about bearing re fitting but do know starter motors are relatively cheap, transit parts UK or eBay, think my last one was just £54, I change for new even if they have just slowed abit and/or are 'tired'.
Hope info helps decisions.
Arran

[Chug]

As stated they are not really expensive new, but if you want to try and sort your one out look at Martin Gaber's Westronics transit starter videos, he is nice bloke and if he can't sell you the parts you need he will tell you where to find them, or help you with part numbers to search for.

[Mattyone]

Thanks for the advice I did have a look and your advice is sound opted for a new one