sick zweetie...cont...
10-09-2002, 10:36 PM
#1
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Join Date: Jun 2002
Location: Alameda, CA
Posts: 903
sick zweetie...cont...
Ok. I've done the B-12 thing, opened up the air control & throttle body.....all looked like new, and I cleaned them out anyway, resealed them, and it STILL ran like $#!^.
I DID find that the spark plugs were wet and reeking of gas. What the hell's going on there???? It's injected!!!!! I didn't think you could flood an injected fuel system.....
Who has any idea what's going on there?????
1983 Datsun/Nissan ZX (NA)
18351-steph_mtr.JPG
I DID find that the spark plugs were wet and reeking of gas. What the hell's going on there???? It's injected!!!!! I didn't think you could flood an injected fuel system.....
Who has any idea what's going on there?????
1983 Datsun/Nissan ZX (NA)
18351-steph_mtr.JPG
10-10-2002, 10:08 PM
#2
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Join Date: Mar 2002
Posts: 646
Re: sick zweetie...cont...
DuckyZ,
If you haven't changed the plugs to new ones do it now.
I went through hell this Spring trying to track down a
rough running engine. I changed jsut about everything
I could think of but the plugs. I had them for only about
1 thousand miles and figured they had to be good. After
changing points, cap, rotor, coil, wires, adjusting the valves
and going through the carbs I decided to change the plugs.
The car fired right up and ran awesome .... I missed two
autocrosses due to a bad plug.
Mike
If you haven't changed the plugs to new ones do it now.
I went through hell this Spring trying to track down a
rough running engine. I changed jsut about everything
I could think of but the plugs. I had them for only about
1 thousand miles and figured they had to be good. After
changing points, cap, rotor, coil, wires, adjusting the valves
and going through the carbs I decided to change the plugs.
The car fired right up and ran awesome .... I missed two
autocrosses due to a bad plug.
Mike
10-11-2002, 07:43 PM
#3
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Thread Starter
Join Date: Jun 2002
Location: Alameda, CA
Posts: 903
Re: sick zweetie...cont...
These plugs don't have any miles on them, that's the point (so to speak...). I'm going to re-gap to max width (per service manual .045 if I'm not mistaken), and turn off the gas intake, open up the air intake and go from there. I got a strange feeling that either these plugs aren't hot enough (NGK copper core) or my coil's fried. What do you think?
10-15-2002, 01:56 PM
#4
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Posts: n/a
Re: sick zweetie...cont...
Duckyz: Could be the coil, could be the wire(s) (coil to distrib, distrib to plugs...) as mentioned above. 15 mins. with a multimeter will tell you, though. Continuity test the coil and the wires, particularly the coil to distrib one. Use the FSM to determine which terminals to test in pairs (sorry, my CD is at home today or I'd tell you myself). It's unlikely for all 6 plug wires to fail simultaneously, so you might want to start with the coil, it's wire and the distrib. A bad rotor/cap could result in the same behavior you're seeing. They're cheap to replace anyway, and should be new every once in a while. I got lazy about it once on my Toyota p-up and drove the last mile or two home on one cylinder 
Never again! If you can find some other plugs to try, that's a good option, too. I've used NGK platinums with great results in a 78 280Z, and my brother had horrible problems with them in *his* 78... neither of us has tried the copper core, though. Good luck, hope it sorts out for you!
Dave
Never again! If you can find some other plugs to try, that's a good option, too. I've used NGK platinums with great results in a 78 280Z, and my brother had horrible problems with them in *his* 78... neither of us has tried the copper core, though. Good luck, hope it sorts out for you!Dave
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