If the nylon is gone, it is all currently located in the oil pump pickup, clogging it. That was usually the reason the engines were warrantied at 20,000 miles back in the day. Especially in the Northeast. I remember back in high school, the first cold day of the year, was always referred to as "Pontiac Extinction Day", when one good backfire would shatter the brittle nylon and send it all into the oil pan. If the owner kept trying to start it, all that cranking would just suck the pieces into the oil pump and the bearings would suffer as a result.
Are you planning on dropping the pan and flushing everything out?
(That would be a hint from a brother Pontiac-er)
Last edited by njsteve; 09-18-2019 at 11:57 PM.
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09-18-2019, 08:08 PM
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