Water Pump Noise? Video Inside. Help.
It started with the Air Compressor having a bad bearing. I removed it and replaced it with an AC Delete pulley. Now I hear this noise. The first video is a little more noticeable. In the second video it is getting louder and faster. The serpentine belt is removed, so it can't be the power steering, smog, belt tensioner, or alternator. It has seen a fair share of driving in the rain this season. The OEM water pump and MSD opti were replaced about four years ago.
Can the noise be something besides the water pump?
Any help greatly appreciated.



http://www.youtube.com/watch?v=TuOLG..._order&list=UL
http://www.youtube.com/watch?v=bQOwx..._order&list=UL
http://www.harborfreight.com/mechani...ope-41966.html
i am betting on the water pump being bad
This morning I pulled off the water pump. The black wheel bearing grease, from 4 years ago, was still in the water pump coupling. The inside of the pump was spotless and the impeller spun by hand with the proper amount of drag. I started the Bird with the water pump off the motor and the noise is still there.
Looks like it's time to pull the balancer, and Opti. I am not sure if it is one of the three seals in the timing cover or the opti making the noise.
Can anyone "Name That Noise"?
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It sounds like a prairie dog is loose. Especially in the first one. If there are guideplates my bet is you have a pushrod making contact and/or oil supply to the top end or that specific rocker/pushrod combo is inadequate.
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http://www.youtube.com/watch?v=TuOLG...layer_embedded
http://www.youtube.com/watch?v=Ouml1...eature=related
http://www.youtube.com/watch?v=YjFA8...ure=grec_index
I did have the passenger side valve cover off and I was unable to find a smoking gun. The valves lash could use an adjustment, but they are close. Can a lifter in need of a minimal adjustment make that noise. I have LT4 stock 1.6 rocker arms. No guide plates. With the cooling system out of commission I have only ran it a 3 times for about 15 seconds at a time.

At this point, it is already torn apart, I thing that I should go after the opti and seals. I would hate to put it back together, chasing valve lash and find out that is the opti of front cover seals.
ANY MORE SUGGESTIONS GREATLY APPRECIATED
11.9 @ 117 at the 1st Annual LA Invasion. I hope not.
I did have the passenger side valve cover off and I was unable to find a smoking gun. The valves lash could use an adjustment, but they are close. Can a lifter in need of a minimal adjustment make that noise. I have LT4 stock 1.6 rocker arms. No guide plates. With the cooling system out of commission I have only ran it a 3 times for about 15 seconds at a time.
Attachment 299941
At this point, it is already torn apart, I thing that I should go after the opti and seals. I would hate to put it back together, chasing valve lash and find out that is the opti of front cover seals.
ANY MORE SUGGESTIONS GREATLY APPRECIATED
11.9 @ 117 at the 1st Annual LA Invasion. I hope not.
i swapped lifters, pushrods, and rocker arms and still never went away
i'll give you an update on how the bottom end looks this weekend when the motor comes all the way out though to give ya an idea






