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Hi, i was in a conversation with a guy he said that RB26 has a problem with temperature.
Its true? Can a expert in this engine said that its true?
 

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There is a slight design flaw that makes the cylinder head more susceptible to cracking than other heads. There is small mod that can be do to eliminate the air pockets than can form during initial system fill. If the manufacturers guidelines on filling at less than 2 litres per minutes are followed, this is reduced.
 

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I used to have a problem with keeping my oil temp above 70 degrees, so the oil temps were too low and I added a thermostatic regulator.
Never had issues with high temps on water or oil however I did add a power steering oil cooler as that used to over heat on a trackday.
 
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