Quote:
Originally Posted by JFP in PA
What you should be looking at is if the cam deviation values remain steady at idle. The actual values are irrelevant, as long as they do not exceed the OEM specs (+/- 4 degrees on five chain M96’s). If the values are not rock steady at an idle, and swing back and forth, the IMS bearing is most likely on its way out.
As for what tools will give you this data, PST II, PIWIS, or Durametric are your only choices; and no, nothing exists for the iPhone……………
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JFP,
You say the actual values are irrelevant but they must mean something. I just took my readings and I'm at +.39 position 1 and +1.93 position 2. Those readings are rock steady at idle all the way to 5,500 rpm. I've been on other forums and sites reading what I can and I've seen everything from positive deviations like mine and minus deviations. Are you saying it's all in the delta between the two?
BTW, I have an '04 3.2 so I think I have a three chain. Are those numbers for my engine also?