1990 300zx timing?

[sdkid123]

how do i set the cars timing i understand the process loosen up the cas,get timing light on battery plus connect to cylinder number one but when actually pointing the timing light to the crank what do i look for?i can see the mark on the pulley but its not iin the range of the scale?thanks

[NissanFairladyZ32]

You should see markings right about the crankshaft and timing should be right on 15 deg

[es.biggs]

you can use the black loop of wire that is just hanging around the PTU instead of hooking up to cylinder one. It's easier, and that is what the loop of wire was designed for.

The timing light strobes, and every time it lights up, the white mark on the crank pulley needs to be at 15 degrees.

[sdkid123]

You should see markings right about the crankshaft and timing should be right on 15 deg

i know the white mark has to be on 15 but when i turn the cas the closest i can get it to is 10? i think i might have the wrong timing light or im using it wrong?my timing light is the (gunson advance xenon timing light) it has numbers on the backthatgo from 0 to 60 but i always keep it on 0 but i can turn it all the way to 60?

[Jiinx]

Silly question.... Are you using the front left spark plug? ( when facing the engine from the open hood)

[es.biggs]

what are you using to pick up the spark signal...spark plug wire or ptu wire?

[sdkid123]

what are you using to pick up the spark signal...spark plug wire or ptu wire?

Ive used boh but more the spark plug wire because when i connect the timing light to all the wires goind to the ptu i wont pick up the signal most of the time.which one is better to use?

[Jiinx]

When you set the timing light advance to 15 degrees, what are you reading? ( the pointer should be at 0 degrees)
How does your car sound like when it's running? Does it seem to run fine?

[sdkid123]

When you set the timing light advance to 15 degrees, what are you reading? ( the pointer should be at 0 degrees)
How does your car sound like when it's running? Does it seem to run fine?

thank you soo much jiinx i did what you said got my timming set,engine sound fine when turned on and runs fine but still lags a little when starting in first gear dont know what it is any help appreciated Ive changed all of this to my car...

spark plugs ngk platinum
changed shocks
idler pulley
master cylinder
slave cylinder
tps
thermostat
new style injecter connecters
changed 3 injectors and put new orings
exhaust cam covers were taken off and resealed with ultra grey rtv
relocated denotation sensor

[es.biggs]

you probably have the wrong spark plugs.

[sdkid123]

you probably have the wrong spark plugs.

The little box were the spark plugs came say this(ngk G-power platinum alloy spark plugs?)

[Jiinx]

Should also have numbers and letters... PFR5B-11, or PFR6B-11, OR...PFR7B-11 written somewhere on the box. Not quite sure, but I think the 5, 6 and 7 refer to heat ranges of the spark plug.

[sdkid123]

My spark plugs have this number (BKR5EGP)

[NissanFairladyZ32]

^^ Wrong

[Jiinx]

It does look like a number that's reccommended by NGK.
Apparently, the 300ZX can be tempermental if you don't use the correct spark plugs. Haven't really found out yet, since I only buy NGKs for her.
http://www.ngksparkplugs.com/part_finde ... p?mode=nml
That's the American NGK parts finder...you should be able to find your plugs there. Here's the results for my car...
http://www.ngksparkplugs.com/part_finde ... esults.asp

( Btw, I'm using the same ones you are and I'm having a few issues of my own, but I don't think they're related)

good luck and let us know what happens...

[es.biggs]

That site lists the PFR5B-11, I have the PFR6B-11. Either should work fine. But that is the plug you need for your car, otherwise, you will never know if that is your problem. The 300zx is very weird about which spark plug it uses.

[CrazedZ32Owner]

im using E3 spark plugs now and she running fine but i am switching over to PFR5B-11B once my ECU goes in

PS, did not mean to thread jack