Lubrication Question

[Werner]

Hey Jim,


I installed it exactly the same way as you. Thanks to my previous job, I had the opportunity to measure the low oil pressure before and after the filter. When the engine is started and running at 600 RPM, it takes about 20 seconds for the oil filter to fill and for oil to be pumped into the cascades. This is at approximately 20°C and with SAE 20W-40 oil.
The engine doesn't notice this delay because there's still some residual oil present at all the lubrication points.


Regarding the advice to only crank the engine with the starter motor, you should know that the pump delivers very little oil at the relatively low speed. You have to crank it for a long time.

[alexiskai]

Originally Posted by Werner

Thanks to my previous job, I had the opportunity to measure the low oil pressure before and after the filter. When the engine is started and running at 600 RPM, it takes about 20 seconds for the oil filter to fill and for oil to be pumped into the cascades.

Werner, how exactly did you measure this?

[Werner]

Originally Posted by alexiskai

Werner, how exactly did you measure this?

Alexis,
this is an intermediate flange with a sandwich construction. This separates the inlet and outlet channels. Two pressure gauges are mounted on each level. The differential pressure then gives the filter resistance in %.

Werner, why did you insulate the oil filter? I believe that is what that material is that is around the oil filter.

Herb,
You're right. I measured the oil temperature, and when driving gently, the oil always stays too cold, below 70°C. So I insulated the filter to prevent the oil from losing even more heat.
I have a simple temperature sensor-label attached to the front of the filter, which tells me the highest temperature that the oilfilter reached.