Why won't my 1985 Nissan 4X4 start when hot? Z24 Gas engine?

[nicknight]

It has been freshly tuned. Starts and runs great when cold but as soon as it warms up and is turned off, it won't restart. Anybody else ever have the same problem? If so, what was the cause?

Thanks Musicman. Real intelligent response.

[amynee]

Maybe your fan isnt running or thermostat is getting stuck i have never had that problem just heard of others that that has happen to

[musicman70913]

its an 85..... id say that is the reason

*EDIT*

No... Seriously, its over 20 years old, Cars in America are not taken care of well enough, or for that matter built well enough, to run as long as they should.

[Derail]

Next time it does that, pop off the air cleaner and look at the choke plate. I think it has an electric choke, that can malfunction. If the choke plate is closed, stick a pen in there to hold it open just until it starts. Then remove the pen, pencil, what ever, and it will run fine. If it's not the choke plate, then it's probably the mechanical advance drive in the distributor. It's telling the distributor to advance the ignition spark for a cold engine.

[Rainman]

Make sure your fuel lines aren't close to a heat source b-cause it can cause vapor lock in your fuel lines.