Magnet on the cam timing gear - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-17-2012, 07:30 AM   #1
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Default Magnet on the cam timing gear

I purchased a new timing chain set and noticed that there is a magnet in a hole on the old cam timing gear and there is not one on the new. Obviously I'll have to transfer the old magnet to the new gear.

Two questions - Is it safe to transfer the old one or is it best to purchase a new one? What is this magnet for?

Thanks.

Rick
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Old 02-17-2012, 07:38 AM   #2
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Yes, you need to transfer the camshaft interrupter magnet to the new cam gear. The magnet passes a sensor on the timing chain cover and trips it everytime it makes a revolution. The PCM(powertrain control module) uses this for timing adjustments.
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Old 02-17-2012, 07:49 AM   #3
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Good morning Mike. Thanks for the quick reply.

I knew I would have to have a magnet on the new gear. Your response implies it is safe to transfer the old one. Is that correct?

I appreciate your quick response.

Rick
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Old 02-17-2012, 08:43 AM   #4
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Yes, you can transfer the old one. But inspect it to make sure it clips in to place good. If the plastic is cracked or broken, replace it.
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Old 02-17-2012, 09:03 AM   #5
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Thanks, guys! I appreciate your help.

Rick
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