Thanks guys, just what I needed.
I should have mentioned that I was needing photos of the engine and gearbox "out" of the tank, these are just what I need to show the shape of the block etc.
One query, the oil tank is mounted on the "outside" of each block, I see one of the photos has it mounted so it would be between the blocks, is this just to show things part assembled?
The later engines are listed as "improved Leylands", these seemingly had the oil tank attached, plus other additions such as oil cooler tubes running across the gearbox end of the blocks, improved filters etc.
Wasn't aware of the sumps though, thanks for all the info.
The manual for some reason has sectioned drawings of the AEC engine, which are useful, but strange in that the sump on the drawings is totally different to that fitted on the tank engines. The most obvious difference between the AEC and Leyland (there are others of course), but at first glance, the Leyland has a much wider and flatter rocker cover. I did not realise that the rocker cover came apart either, thanks for that.
If there are other photos, please send them on.
These really help, and thank you all very much.
I cannot get the link to work (?) but should you wish to see some of the model work I have done, look at
www.mooresmilitarymodels.co.uk
Thanks again.
George.