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Running issues on 1976 W114 280 Sedan M110 engine
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04-15-2018, 03:18 PM
Frank Reiner
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Join Date: Feb 2011
Location: Modesto CA
Posts: 4,085
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The aftermarket plug part # given above cross references to a Bosch WR8DC. It is a resistor type ("R"), and is incorrect for the rest of the ignition system. A non-resistor plug is required, such as NGK BP5ES.
Frank Reiner
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