Ford 390 Valve Train Noise at Cornelia Priest blog

Ford 390 Valve Train Noise. Rocker shafts installed correctly, no looseness in valve train obvious. I think the noise is coming from the lifters. It's normal if the valves have begun to recess in the head. Now runs super, no intake leaks, smoke not visible. Your probably right,if the lifter oil galleys were plugged off you would think it would make noise even when cold. The engine is quiet when cold but starts getting noisy as. You can check for this by installing all the valvetrain but leave the valve covers off and putting a yellow grease pen mark vertically. It seems to fade when i rev it or shift to a higher gear with medium load. The engine has a valve train tap/knock. Or if the pushrods are too short, or if the lifters are going bad. The engine runs very well but once warm the valve train gets very noisy.

You can check for this by installing all the valvetrain but leave the valve covers off and putting a yellow grease pen mark vertically. Now runs super, no intake leaks, smoke not visible. It seems to fade when i rev it or shift to a higher gear with medium load. The engine is quiet when cold but starts getting noisy as. I think the noise is coming from the lifters. Rocker shafts installed correctly, no looseness in valve train obvious. Or if the pushrods are too short, or if the lifters are going bad. It's normal if the valves have begun to recess in the head. The engine has a valve train tap/knock. Your probably right,if the lifter oil galleys were plugged off you would think it would make noise even when cold.

Diagnosing Valve Train Noise and Other Symptoms of a Bad Valve Train

Ford 390 Valve Train Noise It's normal if the valves have begun to recess in the head. It's normal if the valves have begun to recess in the head. Your probably right,if the lifter oil galleys were plugged off you would think it would make noise even when cold. The engine is quiet when cold but starts getting noisy as. It seems to fade when i rev it or shift to a higher gear with medium load. Now runs super, no intake leaks, smoke not visible. Or if the pushrods are too short, or if the lifters are going bad. Rocker shafts installed correctly, no looseness in valve train obvious. The engine has a valve train tap/knock. The engine runs very well but once warm the valve train gets very noisy. I think the noise is coming from the lifters. You can check for this by installing all the valvetrain but leave the valve covers off and putting a yellow grease pen mark vertically.

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