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Tone ring explanation #2737906
01/29/20 10:38 PM
01/29/20 10:38 PM
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Deland, Florida
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biff426 Offline OP
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biff426  Offline OP
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What is the computer looking for on the tone ring to determine TDC? What would happen if you setup the cam timing 180 degrees out meaning the piston is on TDC but the tone ring is at BDC? What area or tooth indicates TDC on the tone ring?

Last edited by biff426; 01/29/20 10:39 PM.
Re: Tone ring explanation [Re: biff426] #2740953
02/08/20 02:05 PM
02/08/20 02:05 PM
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MattW Offline
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My guess would be yes. The relutor wheel, tone ring is looking for the TDC.

Re: Tone ring explanation [Re: biff426] #2740965
02/08/20 03:05 PM
02/08/20 03:05 PM
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RTSE4ME Offline
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Originally Posted by biff426
What is the computer looking for on the tone ring to determine TDC? What would happen if you setup the cam timing 180 degrees out meaning the piston is on TDC but the tone ring is at BDC? What area or tooth indicates TDC on the tone ring?

Never mind

Last edited by RTSE4ME; 02/08/20 03:18 PM.
Re: Tone ring explanation [Re: biff426] #2740994
02/08/20 04:33 PM
02/08/20 04:33 PM
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A39Coronet Offline
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I have Sheppard's latest hemi book at work and i keep forgetting to look this up. Fairly sure it's looking for the long duration tooth, or the long duration gap, for TDC. Since the tone ring only can go on one way, as long as the cam and crank dots line up, you won't be 180* out.

Hopefully someone with more experience than I can chime in.


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