how does an advance timing light work??
#12
Re: how does an advance timing light work??
Originally Posted by Racintweek
but you only hook up the light to the #1 plug wire. how can it tell when #2 fires??
#14
Re: how does an advance timing light work??
Originally Posted by Racintweek
i figured it was kinda pointless to buy one with a dial because it just didnt make any sense as to how they operate. if there is no way to hook it to a crank trigger then it cant possibly know where in the crank rotation you are.
i geuss my skepticism was correct this time
i geuss my skepticism was correct this time
No it's not. Timing guns operate in a very simple way. They trigger the light when there is current flowing through a spark plug wire.
To advance this, they simply delay the flash of the light. The delay is calculated by RPM's. It is very simple.
If you set the gun to zero, then the resulting flash is whatever the ecu is triggering the coil at.
Like Mista Bone said above about the dial ones. They are only accurate for a certain RPM, because they have no logic circuit to apply the appropriate delay for different RPMs. They still work however, but they are largely inaccurate unless you know their limitations.
#15
Re: how does an advance timing light work??
look at my signature, then question my logic
Besides being a master certified technician (btw, i took all the tests at one testing period, took a total of about 3 hours for all 8, and averaged 88%) I'm certified by Nissan, Toyota (two teests left to master Toyota certification), and Honda. I placed 1st in state at VICA last year (with a point gap between me & second greater than the gap between 2nd and 4th, 2nd place was a friend of mine, also ASE master certified), 4th place at national VICA (1.6% behind first, i'm pretty pissed about that, I wrote down all the answers at one station backwards, had they been in the correct order I would have been ~2.5% ahead of 1st).
So basically, if I'm giving someone an answer, it is correct. If I'm making a guess, I will say so, but I'm usually correct then too.
Besides being a master certified technician (btw, i took all the tests at one testing period, took a total of about 3 hours for all 8, and averaged 88%) I'm certified by Nissan, Toyota (two teests left to master Toyota certification), and Honda. I placed 1st in state at VICA last year (with a point gap between me & second greater than the gap between 2nd and 4th, 2nd place was a friend of mine, also ASE master certified), 4th place at national VICA (1.6% behind first, i'm pretty pissed about that, I wrote down all the answers at one station backwards, had they been in the correct order I would have been ~2.5% ahead of 1st).
So basically, if I'm giving someone an answer, it is correct. If I'm making a guess, I will say so, but I'm usually correct then too.
#16
Re: how does an advance timing light work??
i guess "questioning your logic" might not have been the right words. i wasnt saying you were wrong, i was seriously asking. thats the whole reason behind me making this thread, to find out how it works.
and FYI: just because you are a master tech doesnt mean you dont make mistakes no one is perfect
and FYI: just because you are a master tech doesnt mean you dont make mistakes no one is perfect
Thread
Thread Starter
Forum
Replies
Last Post