The cylinderhead has all new valve guides, new seals, and new springs. A three angle valve job was done too. I hope that would take care of the problem and everything will be ok. Also, other parts that I will replace:
New timing and oil chain
New oil pump (while I am there)
all new chain guide rails (timing and pump)
New hoses
New idler pulley
new transmission cooling lines
new pan gasket
Transmission filter kit

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Meza
1993 190E 2.6
Advanced Diesel Systems Test and Research Engineer