Yesterday I opened up the distributor and found every connection burned black. The resistance between inside of the distributor to plug connection was almost infinite. The middle spring loaded black thing did also have resistance over specs. Is this a way to determine it's condition? By measuring resistance?

The rotor was also worn at the tip. Could this bad rotor and distributor cause intermittent stallings? If bad connection between distrubutor and rotor this would cause the whole firing sequence to be cut off, right?

Any advises are appriciated.

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'87 MBenz 190E 2,3 8vlv