what are lash adjusters ???

the 300zx has variable timing on the inlet cams which is what i think you are referring to.the inlet cams have an oil pressure operated hub which releases or retains oil and swings the cam sprocket to give optimum power during acceleration.

i can get another zx but it rattles between 3-4000 rpm the owner says ther lash adjusters need looking at any idea what it would take to rectify the problem?

the rattle at those revs will probaly be vtc related.at the back of each inlet camshaft youll find a solenoid.the inlet camshafts are nearest the center of the engine.follow the wiring from each solenoid and unplug them.if the rattle stops then you do have a vtc problem.may need new springs or the hubs could be on there way out.im sure someone on here has a good pair of hubs and the springs are only a few quid from the traders section.

thanks jimmer great help i owe u 1