Quote:
Originally Posted by ARINUTS
Wow, the non turbo block has the oil squirters! thats a great thing, but why?
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The oil squirters are necessary for keeping the piston temperature under control. If the piston temp gets too high cylinder scuffing, increased ring wear, increased blow by, etc occur. On the NA 606, the oil squirters simply squirt oil to the underside of a "normal" diesel piston. On the turbo 606 the oil is squirted into a "cooling galley" (AKA chamber) inside the piston. The oil is sloshed around by the movement of the piston, which increases the heat transfer into the oil.
Long story short, the NA 606 has squirters, but the turbo 606 has squirters and pistons with oil galleys.
I think the NA has weaker rods as well... I'm sure there are other things, but all I know about are the oil squirters.