Date registered: May 2010
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MB 200 w115 engine question
I have a question regarding my MB 200 -75 and it's engine.
I recently changed sparkplugs and saw something I haven't seen before and that was that sparkplugs from cylinder 1 & 4 were sooty and plugs from cyl. 2 & 3 looked normal. How is this possible, I mean, the carb distributes the same fuel mixture to all four cylinders...
It doesn't consume any excessive amounts of oil, no blue smoke when starting, it isn't weak, it accelerates fine.
Can also mention that the engine has run about 360 000km (222 000miles) and had the head serviced (new valve guides, seals, timing chain, gaskets etc) done at about 200 000km (124 000miles)
A recent compression test has not been made, but I will try to do it soon.
I don't know what the cause is and was hoping someone out there might know what gives...