Engines 190Z IMR ENGINE 3345 €649.00 190Z IMR ENGINE. What do we RECOMMEND doing to this engine? Open the engine and re-tighten the tip of the crankshaft and the clutch nut to prevent them from loosening during the first uses and avoid breakages. In addition, the valves must be adjusted and the starter sprockets must be canceled to avoid possible breakdowns. It is also recommended to check... Add to basket