getting a slight rap @3k RPM under light throttle
 

Just got my car running after the engine sat dormant for 5 years and the chassis for 20+.

It's a 3.4 EFI 930 with hydraulic tensioners.

I am getting a rap from 2800-3200 RPM with very light throttle.

I am leaning towards tensioners.

There is no sound on decel nor under moderate and above acceleration.

http://youtu.be/evHQkl6Q1IE

http://youtu.be/pu4xxKKPG7g

I'd like to get this sorted out soon so I can get it to the dyno.

I am running 15/40 Rotella and seeing 2.5 BAR for oil pressure @3k.

This noise is less noticeable when the car is cold. Think 20/50 will fix this issue? I am getting ready to do an oil dump when I get back.

Plan was to run the car for a tank of fuel to get all the residual fuel out and then dump oil and do filter changes.

Fuel, oil and oil screen (pre filter) change.

oil pressure issue?

https://www.youtube.com/watch?v=4VWVMNiMS0g&feature=youtu.be

pressure per gauge does seem a bit low vs. rpm. You might want to verify the gauge and/or sender is operating correctly.