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The early M102 engines had some engine problems related to timing chain stretch. However with modified oil spray nozzle installed on upto 1988 engines the timing chain shouldn't be a problem.
The 1991 & later engines were redesigned with most engine parts being modified!
ON 1988 & later M102 engines with DOUBLE row timing chain the only weakness is the head gasket. LACK of coolant flushes will allow the gasket to deteriorate and let oil & water mix at the # 4 cylinder.
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MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
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