[diesel_mercedes] hard starting

 

One thing that surprised me when I "had to replace my dead battery" was
that the glo plugs were apparently getting hotter. It started better
but not because of improved cranking. Check the actual voltage at the
plug as your glo plugs heat!!!! Also, pull the glo plug harness and
check each contact for ground to each glo plug from the plug contact.
--
Stan George Portland <<

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[diesel_mercedes] 300D Hard Starting

 

83 300D hard starting. May start on first try, may take several. Outside temp does seem to make a difference.

Once started, runs outstanding. Will easily start again if still warm.

Changed glow plugs. Person I bought car from claimed to have cleaned the carbon from prechamber. About 50,000 miles since then.

Swaped glow plug switch with known working.

Adjusted valves.

Ran through 2 bottles of diesel clean, returning fluid really not that dirty.

New heavy duty battery.

New primer pump.

Good fuel flow from the tank.

Any ideas?

mag600

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