Thread: 2.25 diesel sump question

The sump is listed as the same for petrol and diesel. I'm not sure why you would remove the baffle plate, although it is not going to make much difference. It increases the rigidity of the block, reducing noise (a little) and prevents loss of oil to the pump on steep slopes. It was fitted to later Series 3 diesels in civilian service.

The oil cooler was only specified for vehicles where the engine was developing substantial power while stationary, and for most of us the only time one would be a significant advantage would be where it was used for prolonged periods in severe offroad conditions in extreme heat.

Thanks John, you knowledge is outstanding. So are you saying that the baffle was also used without a cooler also? I like the fact its a strength piece, but again my concern i how much less oil ill have circulating with it and smaller sump...
Found a diagram with the components.

It was certainly fitted to a 1981 S3 diesel I had, but I did not think that the sump was different from the standard one - although just checking the parts book, it was fitted with a different sump and is listed as optional. Fitting it was also definitely not contingent on having the oil cooler. Although it is a different shape, is it actually smaller? Don't forget that because of the thickness of the baffle it is set lower, so the dipstick being the same will mean it is filled closer to the top than the standard sump.

I had a petrol sump to compare it too and its was different in depth. Maybe the smaller sump took into consideration the gap between it and the running components/hazards as it would hang too low?

I also looked at some lightweight engine pics in google and the same colour as mine is shown. So perhaps it was military engine?

Parts book just lists it as an option, nothing to do with military. But the sump is certainly a different shape.