84 300D leaking delivery valve

Just received this vehicle a couple of weeks ago. I was going over all the items that need to be done to get it ready for the road. Adjusted valves, Changed ALL fuuel and oil filters. Removed and cleaned the fuel tank screen. Checked the cylinder compression. So far so good,

It had a "miss" when idling but under way ran smooth. I noticed when I was doing the compression test that number 2 delivery valve was not putting out the quantity of fuel that the rest were. I changed the delivery valve and it didn't change. I removed the delivery valve holder (don't know the exact nomenclature) and cleaned and replaced the "O" ring and re-installed. the "miss" is now gone and runs like a champ; however, there is fuel leaking from the "delivery valve holder". I changed the "O" ring several times to no avail.

This is the first problem I have been unable to figure out. Any help would be greatly appreciated.

David

Forums

Chassis Model Number