[diesel_mercedes] Re: Hard starting. W123

 


I assume that's an 80* C temp ? .

The glow plugs should be hot enough to give you a 3rd. degree burn should you be foolish enough to touch the brass , hexoganal part furthest out from the cylinder head (DO NOT do this !) .

I always wait a few seconds after the glowplug light goes out before operating the starter , this way ialways lights right off in less than 2/3 a crankshaft revolution .

Saves wear & tear on the starter motor and battery too .

Maybe it's time for a new secondary fuel filter and a Diesel Purge ? .

-Nate
Lawrence wrote :
>
> All the easy answers have been addressed.  Used a multimeter and infrared thermometer to make sure.  Voltage dropped and an 80 degree temp noticed at each glow plug.  
>

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