Fuel Injection pump oil capacity

[paults1]

I have searced the forums and have found the oil capacity for the early F/I pump mentioned anywhere from 180ml, too 250ml & 300ml. Which is correct? The manuals I have do not give the capacity for this early F/I pump. The dip stick is diffuclt to read because of the clear oil. It appears to be at the full mark. I know that to drain the oil you must suck it out from the dip stick opening & not the fill hole. I ask about this capacity because my pump leaks oil & I can't tell where the leak comes from. It appears it is comming from the very botton of the pump but not sure. Is there a gasket on the bottom of the pump? There is no oil leaking from the rear area of the pump where the govener adjusting screw is.

Regards, Paul '63 230SL

[hands_aus]

Hey Paul,
When I change the oil in my Inj Pump, I add about 150-180ml and then run the engine and check the level.
Generally I run my oil level at about halfway up the dip stick.
I monitor the level closely because I think there is a leak of the internal oil seal. However the level has not changed recently. I put that down to the fact that I have been using the car quite regularly.

Is it possible that the side cover seal is leaking?

Bob Smith (Brisbane,Australia)
RHD,1967 early 250 SL, auto

[JPMOSE]

Make sure you screw the dip stick in completely for measurement of oil level.  Otherwise, you will overfill it.

Best Regards,

J. P. Mose
1968 250SL
1987 560SL