I just changed my fuel filters and my fuel primer pump. I have an '83 300SD. I have been unable to get the car started after changing everything. Here is what I did. Remove secondary filter and fill new one up with fuel and screw on. Remove Primary filter and replace with new. Then I removed the primer pump and put the new one on. Pumped a bunch, primary filter was full of fuel with only one small bubble in it, kept pumping til i heard a slight hiss. tried to start car to no avail. I am assuming I got air in the system somewhere. Where should I start to remedy this? I read that I should crack the fuel lines. Where do I do that at, where they go into the injectors from the pump, or at the pump where they go out to the injectors? Did I do something wrong? The new primer pump leaks a little around the bottom. I got it as tight as I could. Maybe I need a new Compression washer for it? Any suggestions would be great.

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1983 300SD Turbo Diesel Automatic