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FE Technical Forum / Re: Need a diagnosis on line
« on: December 11, 2014, 08:45:21 AM »
I had a noise that sounded like a lifter tick but ended up being a loose exhaust valve guide. Would'nt tick all the time ,you could hear it at idle speed if the engine temp was just right. It would be noticeable driving under a load or accelerating. That guide was'nt that loose that affected the valve seating or idle quality. I discovered the problem buy noticeing the valve spring had exhaust smoke on it. This was in a 390 that I had in my wrecker with low miles on a rebuild
Have A Good Day ---- John
Have A Good Day ---- John