1986 Nissan



June, 29, 2008 AT 8:43 PM

Engine Mechanical problem
1986 Other Nissan Models 4 cyl Four Wheel Drive Manual

wE HAVE A nISSAN NAVARA 4WD, 2.4 LITRE MANUAL PETROL. We have just replaced the flywheel and stater motor as it was not starting properly. When these were replaced, it started but would not continue to run for more than a couple of seconds. We then put a carby kit through it and replaced the points, leads, condenser, coil and reducer and it still will not run for more than about 15 seconds. Can you advise what the problem could be and what we should look at replacing now. We cannot get it to the mechanics as we can't get it to run.


2 Answers



June, 29, 2008 AT 10:18 PM

If the engine's condition is in tip top shape-do below to determine if its fuel or spark problem that's if its cranking over and refuses to start

Get a carb cleaner and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel problem, check the fuel pressure to rule out the fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil, distributor pick-up coil, ignition control module, cam and crank sensors-

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems with compression and valves opening and closing at the wrong time



June, 29, 2008 AT 11:35 PM

Thanks for your advice. Will try all your suggestions when I get home.

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