thrust bearings stop your crank from moving from side to side. if you gonna open up your motor you might you might as well replace replace everything because itll stop you from doing it later on and it will give you piece of mind.
definately replace the oil and water pump - why- cos they are two of the most important parts on your car.
i am building my b18c and i replaced everything and youll be surprise how it cheap is.
a full gasket kit is cheap. PM me if you want one.
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