Nissan, maxima, engine: 2988 cc, VQ30DE, 1999, manual gear transmission I need correct flywheel and signalsheave flywheel must be equipt by 8mm hole for correct positioning on crankshaft (fitted flywheel is equipt by 6mm hole for positioning in result: engine is'nt running round= ignation is wrong) please assist- thanks in advance regards Joerg B.

Topmarincons: In checking this car for flywheels available, Nissan only lists one part number 12310-2Y910. I could find no other references or part numbers superseding this one.
When you list a single sheave, it sounds more like you are describing a front crank pulley. Again, in researching part numbers, I could only come up with one number :12303-31U10. It is commonly referred to as a "Harmonic balancer". In looking at an exploded parts diagram, it shows a serpentine type pulley."Single sheave". As far as sources: This particular part rarely fails.
New, it, dealer retail price is $234.33
Check with salvage yards, you can buy them for a fraction of that price. Another option is to buy an "UNDER DRIVE" unit. This is a part which will add horse power by cutting down on some of the rotating mass, yet not affect that crankshaft harmonics which would affect it at high RPM's. "UNORTHODOX" racing, on-line I believe is one source. Good luck.......