Name that valvetrain noise!?

[misfitJason]

This noise has been there ever since I have built the motor, now going on twenty thousand miles. It has been there through changing heads and throttle bodies. It is not the rockers hitting the boxes, it is not the pushrods hitting anything, and it is there even when the lifters are changed. It doesn't make the noise when she's cold. I even have rockouts in there. I think it's the rocker arms having a slight up and down clicking. What do you guys think
https://youtu.be/my5Nv1dxM2U

[Armin]

Try to pinpoint the noise source with a stethoscope.

Armin.

[pendo31]

Is it louder when fully warmed up, does it have gear drive high lift cams, if so then possibly a little too much gear lash.

[misfitJason]

It doesn't make the noise when it's cold. More so when it's warm. It does not have gear drive cams. 37h cams with stock valve springs. Decked heads to 80cc, 95inch compression set at 9.8-1

[MikeL]

What you getting for oil pressure at idle hot? What lifters you using? What push rods you using?

                                                                                                        MIKE

[Deye76]

What pistons?

[misfitJason]

What pistons?

Screamin Eagle flat tops

What you getting for oil pressure at idle hot? What lifters you using? What push rods you using?

                                                                                                        MIKE

No idea.... but the light isn't on haha. Lifters...I've had s&s and am now running hylifts. Pushrods are s&s. I've had four different sets in there chasing the noise to no avail

[Rockout Rocker Products]

Try Spectro 25-60 DINO oil 

[MikeL]

https://www.sscycle.com/tech-info/instructions-data/pushrod-adjustment.
Sounds like low oil pressure or wrong adjustment of the push rods. It wouldn't hurt to check oil pressure with a mechanical gauge.


                                                                                                         MIKE

[misfitJason]

pushrod adjustment, tighter or looser, doesn't have an effect on the sound.  Noise is present regardless of pushrod type or diameter

[Thermodyne]

Its not a pushrod, and more than one loosing adjustment would be rare. 

Use a length of heater hose or a wooden dowel (broom handle) to locate the noise.  Then start in that area.

Listening to a video is pretty tough for a noise that's not obvious.  Kind of sounds like roller rockers with some miles on them.   But if that noise locates to the rocker boxes, then you'll want to have a close look at the supports and what the shaft fit is to the support and to the rocker.  And the fit of the rocker to the support.  Not making noise cold is often loose rocker shafts. 

[Big Cahuna]

I agree with RRP, drain oil whatever oil you have in there and try either 20/50 wt dino oil, or even straight 60 weight. Most bikes are noisy with synthetic oil, that all it sounds like to me is your issue.,,,