The evaporator went out on my daughter's 92 300D so she is giving it back to me. I am planning to take on that ugly job with the help of postings here on the forum when it cools off enough to work on the car.
In the meantime, I need to fix leaks on the injection pump. The car runs great (29 to 33 MPG) so if possible I want to avoid removing the pump.
My question is which gaskets and o rings can be replaced with the pump in place?
I have already replaced the o ring that seals the shaft of the manual shut off lever using one of the o rings that comes with a fuel filter.
Most of the leaking appears to be coming from where the injection lines attach to the pump. I have checked the tightness of all of the fittings and it is OK. Looking at the parts diagram there is a part called a pressure valve o ring. Is that what seals the injection line connections to the pump?

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Tom Hughes
St. Louis
84 300SD
92 300D
86 300SDL