Can anyone tell me where I can see an engine diagram. In particular timing chains on a 2007 Multijet 2.3 Diesel F1AEO481N. Thanks Des

Hi Des
Suggest you download the elearn workshop manual for the 244 Ducato from the downloads section as the 244 model used the 2.3 engine as well & you could get a timing diagram for it & the complete replacement procedure in the 1032 procedures section of the elearn workshop manual.
Below link is how to download the elearn manual in the downloads section & how to extract the ISO from the rar file & burn it to CD.
https://www.fiatforum.com/ducato/265039-need-help-downloaded-manual.html
A post on the belt replacement schedule for the 2.3
https://www.fiatforum.com/ducato/242401-2-3-jtd-timing-belt-replacement-schedule.html

Below is a link to a previous post on belt replacement on the 2.3 with sections from the elearn manual in 3 doc files.
https://www.fiatforum.com/ducato/184900-ducato-2-3-jtd-2004-timing-belt.html
Cheers