Looks like your car is too old. You should probably just get rid of it and buy a new car.
1979 280zx Leaky Fuel Injector when Cold
Hey guys!
So, as implied by the title, I have been experiencing a very strange (but consistent) problem with a fuel injector on my 1979 280zx coupe. Upon startup, injector #3 will leak fuel from the interface where the plastic electrical connector and rubber hose are riveted together, but only for about 10-90seconds after startup. After this time lapse (presumably the injector is beginning to warm up), the leak will stop and never leak again for as long as the engine is warm (even with repeated startups; for example, after turning off the car, going into the gas station, coming out and restarting, no leak). I have read in the past that fuel injectors that leak at this location (between the plastic connector and hose rivet) are not repairable, and the only option is to replace it with a new one. I'm not really opposed to replacing the injector, but my issue is the fact that this same issue has happened to me in the past 2-3yrs with previous injectors (I replaced all the stock injectors and injector wiring with MSA injectors and wiring about 8yrs ago). For some reason, every once in a while, one will start this "cold leaking" issue, and I will eventually replace the injector entirely (I've done this twice now).
Do you guys have any clue why this leaking issue would only happen while the injectors are cold, and not while warmed up? Is there any way to repair an injector with this issue? And probably more importantly, do any of you have any experience/suggestions with replacement fuel injectors and have any suggestions as to where I can get some that will last longer than these currents POS's i seem to be buying. Thanks a ton in advance guys!!
-Alex
So, as implied by the title, I have been experiencing a very strange (but consistent) problem with a fuel injector on my 1979 280zx coupe. Upon startup, injector #3 will leak fuel from the interface where the plastic electrical connector and rubber hose are riveted together, but only for about 10-90seconds after startup. After this time lapse (presumably the injector is beginning to warm up), the leak will stop and never leak again for as long as the engine is warm (even with repeated startups; for example, after turning off the car, going into the gas station, coming out and restarting, no leak). I have read in the past that fuel injectors that leak at this location (between the plastic connector and hose rivet) are not repairable, and the only option is to replace it with a new one. I'm not really opposed to replacing the injector, but my issue is the fact that this same issue has happened to me in the past 2-3yrs with previous injectors (I replaced all the stock injectors and injector wiring with MSA injectors and wiring about 8yrs ago). For some reason, every once in a while, one will start this "cold leaking" issue, and I will eventually replace the injector entirely (I've done this twice now).
Do you guys have any clue why this leaking issue would only happen while the injectors are cold, and not while warmed up? Is there any way to repair an injector with this issue? And probably more importantly, do any of you have any experience/suggestions with replacement fuel injectors and have any suggestions as to where I can get some that will last longer than these currents POS's i seem to be buying. Thanks a ton in advance guys!!
-Alex
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My 83zx has also had the same prob.with the #3 injector.Just got through replaceing all the injectors for the second time.The first set lasted about 10 or 12yrs.the fuel lines to the fuel rail had started cracking on them so I just replaced them all.It gets hot and humid as **** here in FL. so the heat has a lot to do with the fuel lines going bad I guess.
uh, it is repairable. I have no idea where you got that the Injector is not repairable, or what you think a rivet is, any how- Might as well replace the rubber hose on all of them. Get the injectors off, slice the hose on opposite sides down to the blue retainer ring. Take a soldering iron and melt the hose under the retainer ring where you cant cut it and pull the old rubber hose out. Cut your new hose same length. Reuse the retainer ring with the new hose. Done it several times with no problems. As for why heat makes things swell up, and cold makes things shrink. My 5th grade science teacher is so proud of me.
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