Engine Noise

[Johnboy]

93 Lincoln Mark VIII (130,000mi) with an engine noise I cannot pinpoint. Changed oil to synthetic recently with an anti-drain back filter and actually got worse after that. Either a bad tappet or timing chain tensioners?????? Thoughts?????

thanx:smile:

http://www.youtube.com/watch?v=JsCt-kEJKvU

 

[klrv6]

Was it ever started in real cold weather after the oil change? My brother had a navigator that sound similar to that. He screwed up the drain back valve while revving the engine up when it was cold out. A new filter corrected the problem not sure if that is exactly what's going on with yours though.

 

[John Larkin]

My dad's '84 Mark VII broke the timing belt once and I ended up finding a bent pushrod. It sounded just like that and was basically shaped like a S. I replaced it and 95% of that sound went away. Drove it alot afterward also. Remove the valve covers and see what you find. Yours definitely sounds like valvetrain.

 

[Johnboy]

I'm not sure what the noise is, had the passenger valve cover off yesterday and it looked perfect. It has a new NAPA drainback filter on it that I put on a little while ago. Weird thing is once it runs for about ten minutes, sounds like a totally different car.