[JFP in PA]

Originally Posted by IanHall

Thanks for the feedback, very helpful!



Engine had been running at idle for maybe 5 or 10 min when I took the readings, but given the balmy Canadian climate (sub freezing at time of test), it's possible it hadn't reached full operating temperature. Will re-run after a serious warm up and see if the deviations drop.

For future reference, anyone have any sense for how much adjustment CAN be done via fine tuning (i.e. via the camshaft sprocket)? Are we talking a degree or two only or several degrees?

Take the car out and drive it for 20-30 min., then check the deviation values. Letting it idle for 10 min. ain't going to do it.

Again, you are not going to adjust your way out of being 10 degrees out; one tooth on the gear is about 12 degrees, and you can only adjust the cam timing slightly with the adjustment system. You have a tensioner wear pad wear issue, and if the values repeat after driving the car, you need to replace some parts.