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There's oil in my. Thermostat. Starts and runs    Its a volvo  18hp. 2002. Oil is geting too Thermostat. The overheat alarm comes on 30 mins?

Update:

Can. Oil. Get in too the warter. Through. The exhaust. Bend. ?  If damaged. / roten

Update 2:

On the engine block.  There's a exhaust  hole. And 3 cooling holes round that wight have been weleded  up.  And no. Collent flow in the fresh system    is it possible  its been converted  too raw warter ?  

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2 Answers

Relevance
  • 7 months ago

    My exhaust  elbow. Leeks. Fresh and raw warter. Can. Gas / oil from exhaust gas get in the coolent / low warter flow causing  overheating ?

  • 8 months ago

    There must be oil in the cooling system and this usually means a blown head gasket. 

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