Clois-
Thanks for the detailed reply. I changed my
oil after the first day (before the problems surfaced). The
oil was dark and gritty, most likely from the lifters wearing away.
The magnetic plug had a lot of debris attached to it.
Put in new
oil and filters and started it up. Ran for awhile, then the popping started.
Just a side note, I'm using a Morroso oil pan with a crank scraper. Could that be preventing the cam from getting adequate oil?