Didn't expect to spin a bearing...

Dec 21, 2005 2 Replies

Hiya,



I started up my 4 cylinder 151 c.i. pontiac Iron Duke engine after letting the car sit for a year. It has 71,000 miles on it.



My procedure was to install a freshly charged battery and just let the engine keep cranking to lubricate it. The engine cranked for over a minute before it started up on its own and then disaster struck.



Some really nasty clanging greeted me almost immediately. I turned it off and let it sit for five minutes and then tried again. No good news, just more banging and racket. I have never experienced such an engine failure as this. The engine was tight I thought.



Next month I'm going to pull the head off and see if there is debris caught in the value or something. Any imput on this experience would be appreciated.



mrfrankwightdec2005



Could be a snapped valve spring due to corrosion pitting from the car sitting a long time. Hopefully the valve hasn't dropped down enough to contact the piston - if it didn't, it should be an easy fix. Yes, a broken valve spring will make a hellacious racket. When one went in my Volvo, the mechanic at first said "thrown rod."

-Andrew

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