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PRattenbury · 11-14-2008, 12:21 PM

The reason I ask is if I'm finding what I think is TDC by using the #1 plunger OR by valve drop method, those two readings being based on the cam gear, if the cam has been degreed I am not seeing true TDC unless I'm basing my observation off the piston, marking when the piston stops rising, and then when the piston begins to fall (both valves being closed). My engine is really noisy, IMHO. And the timing is supposed to be set on the stand at 24 degrees, which shouldn't be too obnoxious. My theory is maybe I'm not using true TDC and I'm running more timing than I think. Could that be true? At what level of timing would the motor start to get loud, all things being correct? 30? 36?

11-14-2008, 12:21 PM	#6
PRattenbury Name: PRattenbury Title: Neophyte Status: Not Here Join Date: Jan 2007 Location: Connecticut Member`s Gallery Posts: 1,095	The reason I ask is if I'm finding what I think is TDC by using the #1 plunger OR by valve drop method, those two readings being based on the cam gear, if the cam has been degreed I am not seeing true TDC unless I'm basing my observation off the piston, marking when the piston stops rising, and then when the piston begins to fall (both valves being closed). My engine is really noisy, IMHO. And the timing is supposed to be set on the stand at 24 degrees, which shouldn't be too obnoxious. My theory is maybe I'm not using true TDC and I'm running more timing than I think. Could that be true? At what level of timing would the motor start to get loud, all things being correct? 30? 36? __________________ 1994 2500 4x4 with a couple mods If corn oil is made from corn and vegetable oil is made from vegetables, what is baby oil made from?