Camshaft deviation

[Jake Raby]

You can't effectively test cam deviations on a cold engine. Only test with oil temp at 160 and coolant temp at 160, these are minimum temperatures.

If you test cold, you'll get whacky values for phantom reasons.

[Ptriggiani]

I think it is time to buy my own Durametric tool , there is no way the car was at full operating temp, it was only running for a few minutes after sitting for several hours in the shop following an oil change. I have a hard time believing I have a problem ,the car runs too strong , idles rock smoothly with no noise at start up. Thanks for the information regarding the necessity for full operating temp to run the test.

[jaykay]

Originally Posted by Jake Raby

You can't effectively test cam deviations on a cold engine. Only test with oil temp at 160 and coolant temp at 160, these are minimum temperatures.

If you test cold, you'll get whacky values for phantom reasons.

Amen to that!

http://986forum.com/forums/performance-technical-chat/54264-durametric-cam-shaft-deviation-change.html?highlight=cam+deviations