Flathead oil gallery warning

[ajmac]

Agreed, 70 years of tinkering can lead to anything! Always check the details. Lynn, my 24 stud 3.6 litre flathead has a British mod, possibly the one you mention as 'on riveted carriers'. There is a waisted fitting that slips down the vertical bell housing oil pump outlet port this directs all oil flow (except the rear main and associated feed parts) to a cooler or filter etc and back to the horizontal bell housing fitting, as the vertical fitting is waisted oil can flow around it and into the main oil gallery. There is no internal plug or third threaded hole in the bell housing, i.e. standard truck service v8.