Originally Posted by 2LEM1
I've run CTR N1 pullys for years.
I suppose it probably depends on the motor and how much ***** to the walls driving one does.
I went to pull a crank from a D16Z6 (dampened pulley) that they put a D15B7 (non dampened pulley) on and it had a spun bearing so I left it even though I fought to get that rod cap off and loose. Whole area was black it got so hot.
I am pretty sure the bearing spun on the Z6 to the point of seizing the motor due to the motor not being dampened and being pushed to red line a lot.
Never saw a bearing melted like that before, was a sad sight to see the only dual oil hole crank of the 92-95 area toasted.