I've recently bought a 1981 mercede 207D which has stumped me with a glow plug problem. The engine will start after cranking for a while but idles very rough until it warms up, and when the engine is warm it'll start first crank no problem, these symptoms combined with the fact that the glow plug light is not coming on lead me to believe that I have a glow plug problem ( GENIUS!! ). I was hoping of course that it was going to be a simple matter of changing the glow plugs, no such luck!, I've removed and checked all the glowplugs, all are showing a 0.6 ohm resistance value. While I was doing that I found that there was no voltage getting to the plugs? I have tried in vain to find a fuse, I traced the wire back and found an unusual looking yoke on the firewall which I presume is some sort of a cut off switch, consiting of a heat coil with a bi-metallic strip switch in the centre I checked the continuaty of that and it's fine, there is also no voltage present. The wires thengoes through the firewall and behind the dash, and as far as I can see goes to the starter switch.
So where's the fuse? or am I overlooking something obvious here? what I could really do with is a wiring diagram, which I can't find anywhere. Would much appreciate it if somebody could point me in the right direction or offer some advice .
04-15-2007, 08:47 AM
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