Hi All,
I have a 1993 300 SD with 100000 miles. Recently I noticed the smell of diesel fuel and discovered a leaking fuel return hose. I replaced hose and in the process noticed another leak which seems to be from around injector lines on pump. Can anyone advise on this? Are there o-rings or seals that can be replaced?

 

Yes there are o rings and crush washers that have to be replaced, not a bad job. Just make sure the top of the injector pump is clean before you take anything off. Do a search.