Injector pump Dip Stick

[Dave]

Ok, now I am armed with pictures.  I see 2 removable vent caps.  See the pictures.  In the pictures, I removed one cap that looked like where the oil should get filled, but I see no dipstick.  Now, if I have a resevoir that needs filling, how do I see how much oil to put in.  If I have an injector pump that gets oil from the engine, how do I tell.  I appreciate any help.

[Naj ✝︎]

Hi, Dave,

The dipstick is on the back of the pump and below the solenoid.

Naj

[Benz Dr.]

If you have the later FI pump it won't have a check valve in the oil line going to the pump or a dip stick on the back cover.

[Dave]

Naj
Your picture did the trick.  Wow.  I never would have found it.  Only cost me a scratched hand.  Success late last night, only getting to the computer now.  Thanks again for taking the time and effort to help me out.  
Good news - full of clean fresh oil.  

Benz Dr.  Thanks for weighing in, too.

Off to the next thing!

[hands_aus]

How full is full?

On the bottom of the dip stick is a flat side.
The oil level should be no higher than the top mark of flat side.

[scoot]

Mine has gotten so full that it has run out the top of the red cap filling hole.  That is because I think that gasoline is leaking into the oil area of the pump and is filling up the oil level.  I assume this means a rebuild at some point.  For now I syphon all of the oil/gas out when it goes up and then fill it with oil again.   I've only needed to do that once since the car has been apart for the last year +. 

If your oil level is too high, make sure as best you can that it is just oil and not oil/gas.   To remove the oil, a big syringe and some plastic tubing shoved down the fill hole works best.    Or a mityvac would be easier, but I didn't have a mityvac back then...  (mityvac needed for W123 vacuum system)