If you have a spark knock on acceleration your timing could be over advanced or you can be at a too high operating temperature.First check the timing, with the vehicle in operating temperature place the transmission in park or nuetral with the parking brake engage Engine turned off..Remove the vacuum hose on the distributor and plug it.Connect the timing light.Disconnect the single wire near the distributor.Start the engine and bring it in operating temperature.Check the timing.Your timing should be at 10 degrees before top dead center
Now the temperature gauge is non op you need to make sure you are at operating temperature and not over heating. After a quick test drive turn off the engine and feel the radiator is there any cold spots that is causing the vehicle to overheat. You could have a plugged radiator.
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If you have a spark knock on acceleration your timing could be over advanced or you can be at a too high operating temperature.First check the timing, with the vehicle in operating temperature place the transmission in park or nuetral with the parking brake engage Engine turned off..Remove the vacuum hose on the distributor and plug it.Connect the timing light.Disconnect the single wire near the distributor.Start the engine and bring it in operating temperature.Check the timing.Your timing should be at 10 degrees before top dead center
Now the temperature gauge is non op you need to make sure you are at operating temperature and not over heating. After a quick test drive turn off the engine and feel the radiator is there any cold spots that is causing the vehicle to overheat. You could have a plugged radiator.