I appreciate the responses to my earlier questions as a new diesel owner. Several people have suggested that I do a diesel purge on my 84 Diesel Turbo. I was sent the DIY article but I am a little unclear on a couple of things. I can see where the inline fuel filter is, but where is the spin-on filter located and how is it accessed??? Also, do I have to worry about priming the filters when I change them?? I've read some articles that discuss how hard it is to restart the engine after changing fuel filters. If it helps any I have the 5 cylinder engine. Thanks!!

The screwon fuel filter is located about a foot forward & up from the pre filter near the fuel pump. Like a small spin-on oil filter. It's under an aluminum housing by the cruise actuator. It is held on with a fairly large bolt from the top. Yes, the fuel system & filter should be primed for an easier start.
Have you found the online service manual yet? skinnerbox.steaky.org
is one of them, Paul.

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1984 300CD 290,000 partial resto

1984 300d Turbo 137k
The Purge Goes In The Prefilter And Relace Large Fuel Filter On Top Is A 22 Or 24 Mm Bolt Turn Bolt Cc, Turn And Remove Bottom Of Filter And Replace After Purge And Prefilter, Fill Main Filter With Purge Or Fuel And Install, Pump Small Hand Pump To Remove Air