Quote:
Originally Posted by vstech
2.5 turbo water pump pulley It's smaller it rotates the water pump faster it's gotta be an improvement on the cooling system
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Are you talking about using an OM602 water pump pulley on the OM603? How much smaller is it?
I test fitted an M103 fan belt pulley on the OM603 water pump. Its about 10% smaller in diameter, I just need to find the correct shorter belt.