Hello I am working on a 79' 280SE at my shop and am having issues with the fuel system it has sat for about 5 years and had a 1/2 tank of gas in it so i have already had to replace the fuel pump, fuel filter, & fuel Accumulator.
I had cleaned the injectors and Lines and had ran fresh fuel through the Distributor. But haven't been able to get it to start and run on its own.
I did have an issue with the cold start injector but have fixed that it's now closer to starting and running but not close enough.

Soo my question is can I take and possibly moddify an updated fuel Dist from say a 1990 300E or something along those lines and install it on the 280SE?
or repair the 280SE DIST from the updated Dist?

Thanks for any help

Have you checked the system pressure? The fuel pressure regulator if it's leaking?

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Past mb: '73 450sl, '81 280slc stick, '71 250, '72 250c, '70 250c, '79 280sl, '73 450sl, parted: '75 240d stick, '69 280s, '73 450slc, '72 450sl,

Also, and you PROBABLY did all of this - but be sure you have good spark, and the starter is cranking hard enough (just because its turning over doesn't mean it should start. I've seen starters crank for a long time and they just weren't turning the engine enough for the engine to start - which could be a bad starter, battery issue.)

If those are good, its probably a fuel pressure issue. Did you clean all the fuel delivery lines? from the tank to the engine bay?

That's my two cents. Keep us posted as you solve this problem.

Quote:

Originally Posted by chiefjd31922 Hello I am working on a 79' 280SE at my shop and am having issues with the fuel system it has sat for about 5 years and had a 1/2 tank of gas in it so i have already had to replace the fuel pump, fuel filter, & fuel Accumulator. I had cleaned the injectors and Lines and had ran fresh fuel through the Distributor. But haven't been able to get it to start and run on its own. I did have an issue with the cold start injector but have fixed that it's now closer to starting and running but not close enough. Soo my question is can I take and possibly moddify an updated fuel Dist from say a 1990 300E or something along those lines and install it on the 280SE? or repair the 280SE DIST from the updated Dist? Thanks for any help

First, you might just try not shouting; refrain from using very large type sizes.

To your question about later FDs: No, the later ones are not usable, unless, you were to install the complete system (fuel pumps, FD, pressure regulator, ECU, wiring, etc., etc.).

If you will, please describe how you "ran fresh fuel through the Distributor".

Before going very far with the fuel system, ensure that the valves are correctly adjusted, that there is good compression, that there is good spark and spark timing, intact plug wires, and clean spark plugs.