Need eco timing help-Searched - Performance Forum

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Need eco timing help-Searched
Saturday, February 21, 2009 8:13 PM
Have a built eco with all the timing off of it. I need to know where exactly tdc of #1 is. I know all about the timing marks. Is there a 180 degree difference on the crank sensor? I am assuming yes. So i need to know what to line the crank up with according to the crank sensor.

Anyone shed any light on this.

Re: Need eco timing help-Searched
Saturday, February 21, 2009 8:21 PM
doesn't matter, its the same either way



Re: Need eco timing help-Searched
Saturday, February 21, 2009 8:22 PM
Put your thumb over the #1 spark plug hole, turn it over, and when you feel air pushing against your thumb then you are on the compression stroke. Then put a long screwdriver in the spark plug hole for #1 cylinder, then turn it over, and when the screwdriver stops moving upwards your at TDC on #1 cylinder.


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Re: Need eco timing help-Searched
Saturday, February 21, 2009 9:07 PM
I have the engine sitting on a stand. I know how to line up the timing marks to find TDC #1, I just didn't want to put it all together and have the crank be out 180 degrees because the reluctor ring was sending the wrong signal. So, it makes no difference?
Re: Need eco timing help-Searched
Sunday, February 22, 2009 5:25 AM
if the crank was off 180* the piston would be at the bottom. There is only one TDC, the piston is either at the top or its not. The crank can't put the piston at TDC twice with the crank sensor reading a different position. Put the #1 at TDC, line up the timing marks and there's no way for it to be off. Your WAY over thinking this, the cams decide what stroke the engine is on the is only one TDC.



Re: Need eco timing help-Searched
Sunday, February 22, 2009 7:54 AM
There is no timing stuff attached. No chains, no nothing. Thanks how i picked it up. I had to put the head on it. I meant 360 degrees off on the crank sensor/reluctor ring(It was late when I posted).
Re: Need eco timing help-Searched
Sunday, February 22, 2009 8:39 AM
It only has 360 degrees, if you spin it 360 degrees your back where you started an the reluctor ring is in the exact same spot. TDC is TDC put it there and that's it.



Re: Need eco timing help-Searched
Sunday, February 22, 2009 9:37 AM
Thank you. I can always count on certain people here.

For some reason I was thinking that there was a difference in the reluctor ring teeth going from one full rotation to the next.
Re: Need eco timing help-Searched
Sunday, February 22, 2009 10:03 AM
Your getting confused by the fact that the crank has to spin twice for the cams to spin once. But TDC is TDC, it can't be off a rotation.



Re: Need eco timing help-Searched
Sunday, February 22, 2009 1:59 PM
Yes, that was exactly it. Thanks man.
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