Startup chatter

Probably starter bendix not disengaging fromt eh flywheel. You can relube it or replace the starter.

Dave

I purchased my 95 in May 94 and it has always done that in winter (sounds kind of like a diesel for a few seconds). I don't think it hurts anything, because I have never had any mechanical problems with my engine driven more than twice as far as yours (just fuel injectors and O2 sensors). Maybe the oil just takes a few seconds to pump up the lifters. As far as I know, I have always used 5W-30 oil.

Same here. 95 Max, bought used in 98 and now has 350,000 km on it. Same noise, mostly in cold weather and I've alwasy attributed it to the oil being a little thick and not getting to the top of the engine right away. I've always used synthetic oil and the "rattle" sound never lasts more than 2 seconds. Just enough to be noticeable but not enough to concern. When I plug the block heater in on those really cold nights, I rarely hear the rattle the next morning.

Todd '95 Black Max '71 240Z