Anyone able to give me some idea where to look for my oil temp sender?

I know its got one, as it was working before I had the engine loom replaced.

(Also connected the guage up to the water temp sender (Cylinder head), and confirmed I've got the right wire.)

I've found the water temp in the cylinder head, and the oil pressure just above the oil filter, but can nae find the oil temp anywhere??

Any ideas, much appreciated.

Thanks, Paul.

Ex-Military 1986 90, 2.5 NA.